CMD912x
Development Board for Motorola 68HC912 MCU’s
68HC912D60/ DG128/ DT128 and MC9S12DP256
xiom
anufacturing
ä
ã 2000
2813 Industrial Ln. · Garland, TX 75041 · (972) 926-9303 FAX (972) 926-6063
·
GETTING STARTED
The Axiom CMD912X single board computer is a fully assembled, fully functional development
system for the Motorola 68HC912D60/ DG128/ DT128 and MC9S12DP256 microcontrollers,
complete with wall plug power supply and serial cable. Support software for this development
board is provided for Windows 95/98 and NT operating systems.
Follow the steps in this section to get started quickly and verify everything is working correctly.
Installing the Software
1. Insert the Axiom 68HC12 support CD in your PC. If the setup program does not start, run
the file called "SETUP.EXE" on the disk.
2. Follow the instructions on screen to install the support software onto your PC.
You should at minimum install the AxIDE for Windows software.
3. The programming utility “AxIDE” requires you to specify your board. You should select
"912-xxx" version of your development board.
Board Startup
Follow these steps to connect and power on the board for the default Monitor operation. This
assumes you're using the provided AxIDE utility (installed in the previous section) or a similar
communications terminal program on your PC. If you're using a different terminal program
than the one provided, set it's parameters to 9600 baud, N,8,1.
1. Set the CMD912x board CONFIG SWITCH as follows:
1
2
3
4
5
ON ON OFF OFF OFF
2. Set the PM12Dxx module MODE SWITCH as follows:
Module
PM12D60
PM12DG128 ON ON
PM12DT128
PM12DP256
1
2
3
4
x
5
x
ON ON
OFF
OFF
OFF
ON ON
ON ON ON *1 OFF OFF
Note 1: DP256 mask set 1K79X and earlier requires Expanded Wide Emulation Mode.
3. Verify CMD912x board COM-SWITCH position 1 is ON.
4. Connect one end of the supplied 9-pin serial cable to a free COM port on your PC.
Connect the other end of the cable to the COM1 port on the CMD912X board.
3
5. Apply power to the board by plugging in the power adapter that came with the system.
6. If everything is working properly, you should see a message to “PRESS KEY TO START
MONITOR…” in your terminal window. Press the ENTER key and you should see:
Axiom MON12 - HC12 Monitor / Debugger
> _
7. Your board is now ready to use! If you do not see this message prompt, or if the text is
garbage, see the TROUBLESHOOTING section at the end of this manual.
Support Software
There are many programs and documents on the included HC12 support CD you can use with
the CMD912X board. You should install what you want from the main menu then browse the
disk and copy what you like to your hard drive.
At minimum, you should install the AxIDE program.
This flash programming utility
communicates with the board via its COM1 port and the supplied serial cable. This program
also includes a simple terminal for interfacing with other programs running on the CMD912X
and information from your own programs that send output to the serial port.
Also on the disk are free assemblers, the GNU C/C++ compiler tools for HC12, example
source code, and other useful software. The introductory tutorial in this manual uses the free
AS12 assembler integrated into the AxIDE program. This is a simple assembler with limited
capability. For a more powerful assembly tool, install the Motorola MCUez program from the
CD. This will allow you to used PAGED memory in your application.
Software Development
Software development on the CMD912x can be performed using either the Mon12 monitor
utility installed in EPROM (sockets U6/U7), a third party debugger (NoICE, CodeWarrior, etc.)
or a Background Debug Module (BDM) connected to the PM12xx Module BDM PORT
connector. Any of these tools can be used to assist in creating and debugging your program
stored in RAM (see Memory Map).
After satisfactory operation running under a debugger, your program can be written to Internal
Flash Memory by changing the PM12xx Module MODE SWITCH settings and programming it
using one of the included programming utilities. Your program may l then run automatically
whenever the board is powered on or RESET is applied.
Option switches on the board allow for easy transition from operating monitor or debugger and
user code.
4
TUTORIAL
This section was written to help you get started developing software with the CMD912X board.
Be sure to read the rest of this manual as well as the documentation on the disk if you need
further information.
The following sections take you through the complete development cycle of a simple "hello
world" program, which sends the string "Hello World" to the serial port.
Creating source code
You can write source code for the CMD912X board using any language that compiles to
Motorola 68HC12 instructions. Included on the software disk is a free Assembler.
You can write your source code using any ASCII text editor. You can use the free EDIT or
NOTEPAD programs that come with your computer. Once your source code is written and
saved to a file, you can assemble or compile it to a Motorola S-Record (hex) format. This type
of output file usually has a .MOT, .HEX or .S19 file extension and is in a format that can be
read by the programming utilities and programmed into the CMD912X board.
It's important to understand your development board's use of Memory and Addressing when
writing source code so you can locate your code at valid addresses. For example, when in
debug mode, you should put your program CODE in External RAM. In assembly language,
you locate the code with ORG statements in your source code. Any lines following an ORG
statement will begin at that ORG location, which is the first number following the word ORG,
for example: ORG $4400. You must start your DATA (or variables) in a RAM location
unused by your program, for example: ORG $4000.
In “debug mode” you’ll be using a debugger utility (Mon12, NoICE, etc) which will handle both
interrupts (reset, timers, etc) and the STACK. When finished debugging, you must add code
to your application to handle the STACK and Interrupt vector initialization. Set the stack
somewhere at the top of your available RAM, for example $3FFE, in assembly this would be
LDS #$3FFE. Also define the RESET vector address, $FFFE, at the end of your program.
For example:
ORG $FFFE
FDB START ; where START is the beginning label of your program
A look at the example programs on the disk can make all of this clearer. If you're using a
compiler instead of an assembler, consult the compiler documentation for methods used to
locate your code, data and stack.
5
Assembling source code
An example program called “HELLO.ASM” is provided under the \EXAMPLES\912x directory
of the CD and if you installed AxIDE, under that programs \EXAMPLEdirectory. You must use
the example for the PM Module you have installed on the CMD912x board. The PM Label is
located beside the microcontroller. For example:
\EXAMPLE\HC12D60\HELLO.ASM Example program for the PM12D60
\EXAMPLE\HC12D128\HELLO.ASM Example program for the PM12D128
\EXAMPLE\HC12D256\HELLO.ASM Example program for the PM12D256
You can assemble your source code using command line tools under a DOS prompt by typing:
AS12 HELLO.ASM –LHELLO
Most compilers and assemblers allow many command line options so using a MAKE utility or
batch file is recommended if you use this method. Run AS12 without any arguments to see all
the options, or see the AS12.TXT file on the disk.
The programming utility AxIDE provided with this board contains a simple interface to this
assembler. Use it by selecting "Build" from its menu. This will prompt you for the file to be
assembled. NOTE: You must select your board from the pull down menu first, or it may not
build correctly.
DO NOT use long path names (> 8 characters). The free assembler is an old DOS tool that
does not recognize them.
If there are no errors in your source code, 2 output files will be created:
HELLO.S19
HELLO.LST
a Motorola S-Record file that can be programmed into memory
a common listing file which shows the relationship between source
and output
The listing file is especially helpful to look at when debugging your program. If your program
has errors, they will be displayed and no output will be generated, otherwise the listing file will
be displayed.
If you prefer a windows integrated programming environment, try the Motorola MCU-EZ tools.
Refer to the MCU-EZ documentation on the disk for more information.
Also, a port for the free GNU C compiler and tools for the HC12 is available on the CD under
6
Running your application
After creating a Motorola S-Record file you can "upload" it to the development board for a test
run. The provided example “HELLO.ASM” was created to run from RAM so you can use the
Mon12 Monitor to test it without programming it into Flash.
If you haven’t done so already, verify that the CMD912X board is connected and operating
properly by following the steps under “GETTING STARTED” until you see the Mon12 prompt,
then follow these steps to run your program:
1. Press and release the RESET button on the CMD912X board. You should see the PRESS
ANY KEY message. Hit the return key ¿ to get the monitor prompt.
2. Type LOAD ¿
This will prepare Mon12 to receive a program.
3. Select Upload and when prompted for a file name select your assembled program file in s-
record format that was created in the previous section called: HELLO.S19
Your program will be sent to the board thru the serial port.
4. When finished loading you will see the > prompt again. Type GO 4400 ¿
This tells Mon12 to execute the program at address $4400, which is the start of our test
program.
5. If everything is working properly you should see the message “Hello World” echoed back
to your terminal screen. Press RESET to return to the monitor.
6. If you do not get this message, see the TROUBLESHOOTING section in this manual
You can modify the hello program to display other strings or do anything you want. The
procedures for assembling your code, uploading it to the board and executing it remain the
same. Mon12 has many features such as breakpoints, assembly/disassembly, memory dump
and modify and program trace. Type HELP at the Mon12 prompt for a listing of commands or
consult the Mon12 documentation on the disk for more information.
For a more powerful debugger with many advanced features such as source level debugging,
you can use the NoICE debugger software. A full featured demo version is provided on the
CD, which you can use to get started. NOTE: To use this program instead of Mon12 you must
simply move the CONFIG SWITCH position 3 ON, RESET the board, and run the NoICE
software. See the help documentation in this program for more information.
NoICE monitor is not installed on Monitor versions R2 and earlier.
7
Programming Flash EEPROM
After debugging, you can program your application into Flash Memory so it executes
automatically when you apply power to the board as follows:
1. Make a backup copy of HELLO.ASM then use a text editor to modify it.
2. Change the ORG location for the program start to the internal flash if needed.
3. Remove the comment ;character before one of the following lines to initialize the stack
pointer which is necessary when running outside of a debugger:
LDS
LDS
#$3FFE ; DG/DP128 or DP256 – initialize…
#$7FE ; D60 - initialize the stack pointer
4. Remove the comment ;character from before the following 2 lines at the end, to set the
reset vector to go to the beginning of the program (the label START) when powered on:
org $fffe
fdb
reset vector
START
5. Re-Assemble HELLO.ASM as described in the "Assembling Source Code" section.
6. Select Program from the AxIDE menu and follow the message prompts. When prompted
for a file name, enter the new HELLO.S19 file.
7. Press the RESET button on the board before clicking OK. When prompted to Erase,
choose Yes.
8. When finished programming, REMOVE POWER then set the MODE SWITCH positions 1
and 2 OFF. Note: turn position 3 off also for DP256 version.
9. Re-Apply Power to the board. Your new program should start automatically and the “Hello
World” prompt should be displayed in the terminal window.
To return to the Mon12 monitor program, set the MODE SWITCH positions 1 and 2 back ON
then press RESET. Note: MODE switch 3 also must be ON for DP256 1K79 and earlier mask
sets.
8
BDM OPERATION
The CMD912X board will emulate supported HC12 device internal flash memory in external
ram. This feature allows BDM (Background Debug Modules) such as the AX-BDM12 to load
and control the execution of code being developed without the necessity of the internal flash
memory being programmed many times during the development process. This feature
improves updating time and allows the use of may software breakpoints instead of being
limited to only 2 hardware breakpoints.
Operation Notes for BDM use:
1)
CMD912x CONFIG SWITCH should be set 1 ON, 2 OFF, 3 OFF, and 4 ON. Position 5
should be Off unless the DG/DT128 Fixed Page is desired to be emulated in ram.
These settings provide external ram and PRU operation with the ECS enabled for
Paging emulation.
2)
PM12xxx MODE SWITCH is usually set for positions 1 and 2 off to select Single Chip
Mode. This setting forces the BDM Monitor in the HC12 active immediately after Reset
with the BDM connected which is desired for most BDM pods. The BDM can then load
a script to set the desired operating mode and configuration, see next note. The
DP256 version should have Mode Switch position 3 ON for correct operation of the
MODC select buffer during RESET.
3)
The BDM initialization of the HC12 should set the correct operating MODE (Expanded
Wide for memory access) and enable port emulation for the PRU to operate. The EME,
EMK, LSTRB, RW, IVIS, ROMEN and Stretch configuration bits should be set for
proper memory map and PRU operation. The external RAM does not require any cycle
stretch for accesses up to 25MHz E clock. The Axiom support CD contains sample
set-up macros for the AX-BDM12.
9
MEMORY MAPS
Following is the memory map for the CMD912X development board and the various
Microcontroller PM Modules that it supports. Consult your MCU technical reference manual
on the CD for internal memory map details for the processor.
PM12DP256 Memory Map
FFFF
Special (BDM) Expanded
Wide Mode
Expanded Wide Mode
Single Chip Mode
1 2 3
CONFIG ON ON OFF
MODE ON ON ON
1 2 3
CONFIG ON OFF
MODE OFF OFF ON
1 2 3 4
CONFIG OFF OFF OFF OFF
MODE OFF OFF OFF
External EPROM
(see BDM notes)
U5/6 (Mon12)
On-Chip Flash Memory
C000
BFFF
Flash Page
8000 – C000
External RAM
U3/4
8000
External RAM
U3/4
4000
3FFF
On-Chip RAM
3E00 – 3FFF used by Mon12
1000
FFF
On-Chip EEPROM
Internal Registers
800
7FF
See your MCU Technical Reference Manual
000
NOTE: the DP256 does not provide a Register Following Peripheral Area.
10
PM12DG128 / PM12DT128 Memory Map
FFFF
Special (BDM) Expanded
Wide Mode
Expanded Wide Mode
Single Chip Mode
1 2
CONFIG ON ON
MODE ON ON
1 2
CONFIG ON OFF
MODE OFF OFF
1 2 3 4
CONFIG OFF OFF OFF OFF
MODE OFF OFF
External EPROM
(see BDM notes)
U5/6 (Mon12)
On-Chip Flash Memory
C000
BFFF
Flash Page
8000 – C000
External RAM
U3/4
8000
External RAM
U3/4
4000
3FFF
On-Chip RAM
3E00 – 3FFF used by Mon12
2000
1FFF
Reserved
1000
FFF
On-Chip EEPROM
Peripheral Area
800
7FF
Unused = 400-7BF
LCD / CS7 = 7F0-7FF
CS6 = 7E0-7EF
CS5 = 7D0-7DF
CS4 = 7C0-7CF
CS3 = 7B0-7BF
CS2 = 7A0-7AF
CS1 = 790-79F
CS0 = 780-78F
400
3FF
Internal Registers
See your MCU Technical Reference Manual
000
1. The Peripheral Area (A00-BFF) is set to Narrow (8-bit) data width by the debug utilities. If
using this memory, you must also do this in your software when booting from flash as
follows:
MOVW #$0CF0,PEAR
MOVB #$73,MISC
; Flash on, p-sel stretch = 3
11
PM12D60 Memory Map
FFFF
Special (BDM) Expanded
Wide Mode
Expanded Wide Mode
Single Chip Mode
1 2
CONFIG ON ON
MODE ON ON
1 2
CONFIG ON OFF
MODE OFF OFF
1 2
CONFIG OFF OFF
MODE OFF OFF
External EPROM
U5/6 (Mon12)
C000
BFFF
External RAM
Internal Flash Memory
U3/4
External RAM
On-Chip
U3/4
1000
FFF
HC12 Internal EEPROM On-Chip
C00
BFF
Peripheral Area - see note 2 below
Unused = A00-B7F
LCD / CS7 = BF0-BFF
CS6 = BE0-BEF
CS5 = BD0-BDF
CS4 = BC0-BCF
CS3 = BB0-BBF
CS2 = BA0-BAF
CS1 = B90-B9F
CS0 = B80-B8F
A00
9FF
Internal Registers - see note 1 below
See 68HC912D60 Technical Reference Manual
800
7FF
Internal RAM On-Chip
000
2. The Internal Register base address is relocated from $000to $800on startup by the
debug utilities (Mon12 and NoICE). To preserve this memory map, you must also do this
in your software when booting from flash. To do this, load register $11with $08for
example:
MOVB #08,$11
; post-reset location of INITRG
3. The Peripheral Area (A00-BFF) is set to Narrow (8-bit) data width by the debug utilities. If
using this memory, you must also do this in your software when booting from flash as
follows:
MOVW #$0CF0,PEAR
MOVB #$73,MISC
; Flash on, p-sel stretch = 3
12
OPTION SWITCHES
CONFIG SWITCH
The CMD912X board is shipped from the manufacturer
with the following default CONFIG SWITCH settings:
1
2
3
4
5
ON ON OFF OFF OFF
The 5 position CONFIG SWITCH provides an easy method of configuring the CMD912X
board memory operation. Following are the configuration switch descriptions:
CONFIG
OPERATION when in ON position
SWITCH
1
2
3
EXT – External Memory and PRU enable (1)
MON – Monitor Memory enable (2)
MON SEL - Select NOICE Debug kernel
ECS Enable - Enable ECS (Emulation Chip Select) signal to ram for
paging emulation on Devices larger than 60K
FPAGE Enable - Enable DG/DT128 Fixed Page at $4000 hex
4
5
(1)
Enables memory bus operation for access to board memory and PRU. Expanded Wide
bus mode must be enabled for proper operation.
(2)
Enables monitor EPROM’s in memory map at 0xC000 – FFFF hex if CONFIG SWITCH
position 1 is also on. When in off position memory space is SRAM for BDM use.
COM SWITCH
The 6 position COM SWITCH on the CMD912x Board provides an easy method of connecting
or isolating the HC12 SCI and CAN channel RXD pins from the provided on-board
transceivers. The HC12 SCI channels are connected to RS232 transceivers and the first 4
CAN channels are connected to 1M baud CAN transceivers. To apply the RXD pins on the
channels for other user applications requires that the transceiver driver be removed from the
HC12 pin. User may then apply signals to the respective pins at the MCU PORT connector
without driver conflict. Please note that the on-board monitor(s) require HC12 SCI channel 0
for user interface.
COM
HC12 Connection in the ON position
SWITCH
1
2
3
4
5
6
SCI0 RXD to COM1 RS232 Transceiver (1)
SCI1 RXD to COM2 RS232 Transceiver
CAN0 RXD to CAN1 Port Transceiver
CAN1 RXD to CAN2 Port Transceiver
CAN2 RXD to CAN3 Port Transceiver
CAN3 RXD to CAN4 Port Transceiver
(1)
Must be ON if using on board Monitor firmware.
13
MODE SWITCH
The 3 to 5 position MODE SWITCH on the PM12xxx Module provides an easy method of
configuring the HC12 operating Mode and Options from RESET.
NOTE: Expanded Narrow Mode is not available on this board, Expanded Wide
operation is required due to the memory application and that any expanded bus
operation requires both HC12 I/O ports A and B in any case.
Following are the Mode Switch selections and descriptions:
PM12D60
Default: 1 and 2 ON, 3 - 5 OFF.
MODE
SWITCH
SELECTION
OPTION
OFF POSITION
ON POSITION
1 and 2
Operating Mode
Port H pull device
Port G pull device
Oscillator Select
Single Chip Mode
Port H Pull-Down
Port G Pull-Down
Ext. 16Mhz Clock
Expanded Wide Mode
Port H Pull-Up
Port G Pull-Up
User applied crystal
3
4
5
PM12DG128 / PM12DT128
Default: 1 and 2 ON, 3 OFF
MODE
SWITCH
1 and 2
3
SELECTION
OPTION
Operating Mode
Oscillator Select
OFF POSITION
ON POSITION
Single Chip Mode
Ext. 16Mhz Clock
Expanded Wide Mode
User applied crystal
PM12DP256
Default: 1 - 3 ON, 4 and 5 OFF
MODE
SWITCH
SELECTION
OPTION
OFF POSITION
ON POSITION
1 and 2
Operating Mode
MODC Selection
ROMON Select
Oscillator Select
Single Chip Mode
Normal Modes
Internal Flash ON
Ext. 16Mhz Clock
Expanded Wide Mode
Special / Emulation Mode
Internal Flash OFF
3
4
5
User applied crystal
14
PORTS AND CONNECTORS
PRU PORT
The Port Replacement Unit (PRU) provides simulation of the HC12 bus and control ports A, B,
E, and K so expanded memory can be used for single-chip application development. PRU
operation is enabled with external memory by CONFIG Switch 1 ON. The PRU also provides
control of the external memories and peripherals on the CMD912x board. Care should be
taken not to violate PRU operation constraints or user code operation could be rendered
inoperable until a RESET is performed.
PRU Ports A, B, E, and K are simulated ports due to the different drive characteristics of the
PRU logic device. Following are the characteristic differences between the HC12 and PRU
ports:
1) The PRU will drive ports to TTL levels with 24ma of source current. Greater than the
HC12.
2) The PRU provides pull-up resistance of 47K ohms to +5V is applied to all PRU ports. The
HC12 allows this to be optioned on input ports.
3) The PRU will only drive outputs high to +4V. The PRU port pull-up resistors raise the
output level to +5V with minimal drive.
4) PRU port inputs will indicate logic high if not driven due to the pull-up resistors.
The PRU will provide HC12 internal resource memory mapping support with constraints. The
user should be cautious to stay within the bounds of the constraints for proper operation of the
board. PRU constraints:
1) The HC12 R/W, LSTRB, and ECLK signals must be enabled for correct operation of the
PRU.
2) The HC12 MODE register must have the IVIS, EME, and EMK bits enabled for correct
PRU operation.
3) The IVIS bit in the HC12 MODE register must be enabled prior to any HC12 internal
resource map changes from default locations.
4) HC12 internal Ram block (INITRM register) cannot be moved above $4000 hex.
5) HC12 internal Register block (INITRG register) cannot be moved above $8000 hex and is
treated as a 2K byte memory space.
6) HC12 internal EEprom block (INITEE register) is treated as a 4K Byte memory space.
15
PRU PORT CONNECTOR
+5V
XPB6
XPB4
XPB2
XPB0
XPA6
XPA4
XPA2
XPA0
XPE6
XPE4
XPE2
PE0
+5V
1 2
3 4
5 6
7 8
Note: PE0 and PE1 are the same signals as the
HC12 Port E.
XPB7
XPB5
XPB3
XPB1
XPA7
XPA5
XPA3
XPA1
XPE7
XPE5
XPE3
PE1
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
XPK4
XPK2
XPK0
GND
XPK7
XPK5
XPK3
XPK1
MCU_PORT 1
+5V
PP0
GND
PP1
1 2
The MCU_PORT1 provides access to the peripheral
features and I/O lines of the HC12. Note:
3 4
PP2
PP3
5 6
PP4
PP5
7 8
PP6
PX0
PP7
PX1
9 10
1) Not all I/O Ports are provided by all HC12 MCUs.
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
41 42
43 44
45 46
47 48
49 50
PX2
PX4
PX6
PS6
PS4
PS2
PS0
PT0
PX3
PX5
PX7
PS7
PS5
PS3
PS1
PT1
PT3
PT5
PT7
PG/PJ1
PG/PJ3
PG/PJ5
PG/PJ7
PH7
2) The PX0 - PX7 port is the CAN channel port and
additional I/O provided by the HC12 devices
associated with that port. Some devices designate
this port as PCAN, PIB, ect.
3) The PG/PJx ports provide either the HC12 port G
or HC12 port J depending on device installed.
PT2
PT4
PT6
PG/PJ0
PG/PJ2
PG/PJ4
PG/PJ6
PH6
PH4
PH2
PH0
PH5
PH3
PH1
16
MCU_PORT 2
PK0
PK2
PK1
1 2
3 4
The MCU_PORT 2 provides access to the
Expanded Bus and I/O lines of the HC12. Note:
PK3
PK4
PK5
5 6
PB0/D0
PB2/D2
PB4/D4
PB6/D6
PE0/XIRQ*
PE6/MODB
A14
PK7/ECS
PB1/D1
PB3/D3
PB5/D5
PB7/D7
PE3/LSTRB*
PE5/MODA
PE7
7 8
1) Not all I/O Ports are provided by all HC12
MCUs.
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
2) The A14 - A19 address signals are provided
by the PRU. The A16 - A19 signals are
derived from the HC12 PK0 - PK5 signals
when emulating internal flash paging
operation.
A15
A16
A17
A18
A19
BUS_PORT
GND
D10
D9
D8
A0
A1
A10
/ OE
A11
A9
D11
D12
D13
D14
D15
A2
A3
A4
A5
A6
1 2
3 4
5 6
7 8
The BUS_PORT supports off-board memory devices.
D8 - D15 High Byte Data Bus in Wide Expanded Mode and
Peripheral 8 bit data bus. Port A in Single Chip Mode.
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
A0 – A13 Memory Addresses 0 to 13.
/OE Memory Output Enable signal, Active Low. Valid with
ECLK and R/W high.
CS0 – CS7 Peripheral chip selects, 16 bytes each, see
memory maps for location, 8 bit access (narrow bus).
A8
A7
A12
/ WE
CS1
CS3
CS5
+5V
/RW
E
A13
CS0
CS2
CS4
IRQ
/P-SEL
CS6
CS7
/ RESET
/WE Memory Write Enable signal, Active Low. Valid with
ECLK high and R/W low.
IRQ HC12 IRQ (PE1) Interrupt Input.
/RW HC12 Read/Write (PE2) control signal.
E HC12 ECLK (PE4) bus clock signal. Stretch should be
enabled in software.
GND
/P-SEL Selects Peripheral area, register following space, 8
bits wide.
/RESET HC12 active low RESET signal.
17
ANALOG PORT
PAD0
PAD1
PAD2
PAD3
PAD4
PAD5
PAD6
PAD7
VRL0
VRL1
PAD8
PAD9
1 2
3 4
5 6
The ANALOG port provides access to the Port AD0 and
Port AD1 Analog-to-Digital input lines.
PAD10
PAD11
PAD12
PAD13
PAD14
PAD15
VRH0
PAD0 – PAD7 HC12 Port AD0-15 is an input port or A/D
Converter inputs.
7 8
9 10
11 12
13 14
15 16
17 18
19 20
VRH / VRL HC12 A/D Converter Reference Pins. See
A/D Reference Section. To provide an external reference
voltage, R3,4,10 and 32 may need to be removed. See
schematic.
VRH1
COM1
1
The COM-1 port has a Female DB9 connector that interfaces to
the HC12 internal SCI0 serial port. It uses a simple 2 wire
asynchronous serial interface and is translated to RS232
signaling levels.
TXD0
RXD0
2 6
3 7
4 8
5 9
GND
COM2
1 2
The COM-2 has a Female DB9 connector that interfaces to the
HC12 internal SCI1 serial port. It uses a simple 2 wire
asynchronous serial interface and is translated to RS232
signaling levels.
TXD1
RXD1
3 4
5 6
7 8
JP1 may be used to reverse RS232 RX and TX signals to the
COM2 connector.
GND
9 10
NOTE:
1) COM1 and 2 connector Pins 1, 4, and 6 are connected for default handshake standards.
2) COM1 and 2 connector Pins 7 and 8 are connected for default handshake standards.
3) Handshake pins are provided access pads behind the COM connectors for user
application and can be easily isolated from each other on the bottom of the CMD912x
board.
4) SCI0:PS0/RXD0 and SCI1:PS2/RXD1 signals can be isolated from the RS232 transceiver
by turning COM Switch positions 1 and 2 OFF respectfully.
5) SCI0:PS1/TXD0 and SCI1:PS3/TXD1 signals can be isolated from the RS232 transceiver
by removing resistors R10 and R11 respectfully from the bottom of the CMD912x board.
18
CAN1 - 4 PORTS
These ports provide the CAN Bus input and output. Each port has a CAN Transceiver (Philips
PCA82C250) capable of up to 1M Baud data rate. Not all HC12 devices support all of the
channels, refer to the device data for capability. Each transceiver receive output has a COM
Switch position associated with it. For proper operation the COM Switch should be turned on
for each CAN channel that is used for CAN communication. The switch provides isolation for
the HC12 I/O port if the CAN operation is not supported by the device or desired by the user.
All HC12 I/O ports are available at the Port Headers for other I/O applications.
CAN 1 - 4 Port Connections
GND
The CAN1-4 connector provides an interface to the MSCAN12
channels 0 - 3 on the microcontroller.
1
2
3
4
CAN-H
CAN-L
+5V
CAN BUS TRANSMIT ENABLE
Each CAN port transceiver transmit driver is enabled for maximum drive and minimum slew
rate by default. The drive and slew rate may be adjusted by changing the value of RC10,
RC20, RC30, or RC40 for each CAN 1 - 4 port respectfully (see PCA82C250 data sheet for
more information). These 1206 size SMT resistors are located on the bottom of the CMD912x
board near the respective CAN port.
CAN Bus transceiver transmit enable control can be applied to each CAN 1 - 4 Port by the
RS1 - 4 tie pads respectfully. The user should select an available HC12 I/O port to perform
the transmit enable function and connect it from the MCU_PORTx pin to RSx pad as required.
The RC10, RC20, RC30, or RC40 resistors must be removed from the respective CAN
port to apply transmit enable control. The transmit enable signal to the CAN transceivers is
active logic low.
CAN BUS TERMINATION
Each CAN port has a set of 1206 SMT size termination resistors on the bottom of the
CMD912x board that are not installed at the factory. The termination resistors provide
optional bias and termination impedance for the CAN bus connected to the CAN 1 - 4 ports.
Type of wire media, data rate, length of wire, and number of CAN bus nodes can all effect the
requirement or value of the termination for the CAN bus. User should refer to particular
application for termination requirements.
CAN-H Bias Resistors: RC11, RC21, RC31, and RC41 provide bias to ground potential for
CAN 1- 4 ports respectfully.
CAN-L Bias Resistors: RC13, RC23, RC33, and RC43 provide bias to +5V potential for CAN
1- 4 ports respectfully.
CAN Termination Resistors: RC12, RC22, RC32, and RC42 provide termination between
CAN-H and CAN-L signals for CAN 1- 4 ports respectfully.
19
LCD_PORT
The LCD_PORT interface is connected to the data bus and memory mapped into the Register
Following memory area of the HC12. Note that the DP256 does not support the LCD Port due
to no Register following area is available. Refer to the PM12xxx board memory map for LCd
Port address location. For the standard display, the base address of the LCD Port is the
Command register and the Base+1 address is the display Data register.
The interface supports all OPTREXä DMC series displays in 8 bit bus mode with up to 80
characters and provides the most common pinout for a dual row rear mounted display
connector. Power, ground, and Vee are also available at this connector.
+5V 2 1 GND
A0 4 3 LCD-Vee
LCD1 6 5 /RW
D9 8 7 D8
D11 10 9 D10
D13 12 11 D12
D15 14 13 D14
Command Register: LCD PORT Base+0
Data Register: LCD PORT Base +1
LCD-Vee is supplied by U16 and is adjusted by the CONTRAST
Potentiometer (adjustable resistor).
See the file KLCD12Dx.ASM for an example program using this
LCD connector.
J3
Additional lines can be used as enables for larger character
panels and are mapped as:
LCD3
LCD2
LCD4
2
1
4
3
LCD2 = Base +$4 & $5
LCD3 = Base +$8 & $9
LCD4 = Base + $C & $D
Note: These selects can also be used for peripheral controls.
KEYPAD
PH0
PH1
PH2
PH3
PH4
PH5
PH6
PH7
The KEYPAD connector is a passive 8-pin connector that can be used to
connect a 4 x 4 matrix (16 key) keypad device. The connector is
mapped to HC12 I/O port H. This interface is implemented as a software
keyscan. Pins PH0-3 are used as column drivers which are active high
outputs. Pins PH4-7 are used for row input and will read high when their
row is high.
1
2
3
4
5
6
7
8
See the file KLCD12Dx.ASM for an example program using this
connector.
20
TB1 and J6 Power
The TB1 and J6 connectors provide power input to the board or if J6 is used for input, TB1
maybe used to source additional circuitry. The J6 power jack accepts a standard 2.0 ~ 2.1mm
center barrel plug connector (positive voltage center) to provide the +VIN supply of +7 to +20
VDC @ 300ma minimum (+9VDC nominal). TB1 provides access to the +VIN, GND (power
ground), and +5V power supplies. The CMD912x power supply will provide 500ma of +5V for
user application. +VIN input power should only be applied by J6 or TB1, not both or a supply
conflict may occur and the CMD912x board could be damaged.
BDM PORT
The BDM port on the PM12xxx module is a 6 pin header compatible with the Motorola
Background Debug Mode (BDM) Pod. This allows the connection of a background debugger
for software development, programming and debugging in real-time without using HC12 I/O
resources.
BGND
GND
/RESET
+5V
See the HC12 Technical Reference Manual for complete
documentation of the BDM.
1 2
3 4
5 6
A Background Debug Module is available from the manufacturer.
21
TROUBLESHOOTING
The CMD912X board is fully tested and operational before shipping. If it fails to function
properly, inspect the board for obvious physical damage first. Ensure that all IC devices in
sockets are properly seated. Verify the communications setup as described under GETTING
STARTED and see the Tips and Suggestions sections following for more information.
The most common problems are improperly configured communications parameters, and
attempting to use the wrong COM port.
1. Verify that your communications port is working by substituting a known good serial
device or by doing a loop back diagnostic.
2. Verify the MODE, CONFIG, and COM switch settings are correct.
3. Verify the power source. You should measure approximately 9 volts between the GND
and +VIN connections on the TB1 power connector with the standard power supply
provided.
4. If no voltage is found, verify the wall plug connections to 115VAC outlet and the power
connector.
5. Verify the logic power source. You should measure +5 volts between the GND and +5V
connections on the TB1 power connector. If the +VIN supply is good and this supply is
email for instructions and provide board name and problem.
6. Disconnect all external connections to the board except for COM1 to the PC and the wall
plug.
7. Make sure that the RESET line is not being held low.
Check for this by measuring the RESET pin on P4 for +5V.
8. Verify the presence of a 16MHz square wave at the EXTAL pin or 8MHz E clock signal if
possible.
describe problem.
22
Tips and Suggestions
Following are a number of tips, suggestions and answers to common questions that will solve
many problems users have with the CMD912X development system. You can download the
latest software from the Support section of our web page at:
Utilities
·
·
·
If you’re trying to program memory or start the utilities, make sure all jumpers and
CONFIG SWITCH settings are correct.
Be certain that the data cable you’re using is bi-directional and is connected securely to
both the PC and the board. Also, make sure you are using the correct serial port.
Make sure the correct power is supplied to the board. You should only use a 9 volt,
300 mA adapter or power supply. If you’re using a power strip, make sure it is turned
on.
·
Make sure you load your code to an address space that actually exists. See the
Memory Map if you’re not sure. The CONFIG switch changes the memory map.
·
·
If debugging under Mon12, make sure you're not over-writing RAM used by it.
If you’re running in a multi-tasking environment (such as Windows™) close all
programs in the background to be certain no serial conflict occurs.
Code Execution
·
·
Make sure the CONFIG SWITCH is set for the proper mode.
CONFIG switch 3 must be ON to access the external bus (LCD display, etc) even if
executing code from Internal Flash memory.
·
·
·
·
Under Mon12, breakpoints may not be acknowledged if you use the CALL command.
You should use one of the GO command instead.
Check the HC12 reset vector located at FFFE - FFFF. These 2 bytes contain the
address where execution will begin when the unit is powered on.
When running your code stand-alone, you must initialize ALL peripherals used by the
micro, including the Stack, Serial Port, Reset and Interrupt vectors etc.
You must either reset the COP watchdog timer in the main loop of your code or disable
it when not running under Mon12 or BDM mode. The micro enables this by default and
if you don't handle it your code will reset every couple of ms.
23
TABLES
TABLE 1. LCD Command Codes
Command codes are used for LCD setup and control of character and cursor position. All
command codes are written to LCD panel address $B5F0. The BUSY flag (bit 7) should be
tested before any command updates to verify that any previous command is completed. A
read of the command address $B5F0 will return the BUSY flag status and the current display
character location address.
Command
Clear Display, Cursor to Home
Cursor to Home
Code
$01
$02
Delay
1.65ms
1.65ms
Entry Mode:
$04
$05
$06
$07
Cursor Decrement, Shift off
Cursor Decrement, Shift on
Cursor Increment, Shift off
Cursor Increment, Shift on
Display Control:
40us
40us
40us
40us
$08
$0C
$0E
$0F
Display, Cursor, and Cursor Blink off
Display on, Cursor and Cursor Blink off
Display and Cursor on, Cursor Blink off
Display, Cursor, and Cursor Blink on
Cursor / Display Shift: (nondestructive move)
Cursor shift left
40us
40us
40us
40us
$10
$14
$18
$1C
$3C
$40-$7F
$80- $FF
40us
40us
40us
40us
40us
40us
40us
Cursor shift right
Display shift left
Display shift right
Display Function (default 2x40 size)
Character Generator Ram Address set
Display Ram Address and set cursor location
TABLE 2. LCD Character Codes
$20 Space $2D
-
.
/
$3A
$3B
$3C
$3D
$3E
$3F
:
;
{
=
}
$47
$48
$49
$4A
$4B
$4C
$4D
$4E
$4F
$50
$51
$52
$53
G
H
I
J
K
L
M
N
O
P
Q
R
S
$54
$55
$56
$57
$58
$59
$5A
$5B
T
U
V
W
X
Y
Z
[
$61
$62
$63
$64
$65
$66
$67
$68
a
b
c
d
e
f
g
h
i
$6E
$6F
$70
$71
$72
$73
$74
$75
$76
$77
$78
$79
$7A
n
$7B
$7C
$7D
$7E
$7F
{
|
}
>
<
$21
$22
$23
$24
$25
$26
$27
$28
$29
$2A
$2B
$2C
!
“
$2E
$2F
$30
$31
$32
$33
$34
$35
$36
$37
$38
$39
o
p
q
r
s
t
u
v
w
x
y
z
#
$
%
&
‘
(
)
*
+
,
0
1
2
3
4
5
6
7
8
9
?
$40 Time
$41
$42
$43
$44
$45
$46
A
B
C
D
E
F
$5C Yen $69
$5D
$5E
$5F
$60
]
$6A
$6B
$6C
$6D
j
k
l
^
_
`
m
24
TABLE 3. Mon12 Monitor Commands
BF <StartAddress> <EndAddress>
[<data>]
Fill memory with data
BR [<Address>]
Set/Display user breakpoints
BULK
CALL [<Address>]
G [<Address>]
HELP
LOAD [P]
MD <StartAddress> [<EndAddress>]
Erase entire on-chip EEPROM contents
Call user subroutine at <Address>
Begin/continue execution of user code
Display the Mon12 command summary
Load S-Records into memory, P = Paged S2
Memory Display Bytes
MM <StartAddress>
Modify Memory Bytes
<CR>
</> or <=>
<^> or <->
<.>
Examine/Modify next location
Examine/Modify same location
Examine/Modify previous location
Exit Modify Memory command
Move a block of memory
MOVE <StartAddress> <EndAddress>
<DestAddress>
RD
RM
Display all CPU registers
Modify CPU Register Contents
Trace until address
STOPAT <Address>
T [<count>]
Trace <count> instructions
1. Mon12 uses internal RAM space from $600 - $7FF for the D60 and $3E00 - $3FFF for the
DG128 and DP256. DO NOT use this space in your program if debugging under Mon12.
2. Register space is located starting at $0000 for the DG128 and DP256, D60 is at $800.
3. Mon12 will not trace into interrupts. To trace an interrupt service set a breakpoint in the
service routine and then trace.
25
TABLE 4. I/O Signal Connection Reference
J1/P1
J2/P2
PM12D60
PM12DG/DT128
PM12DP256
CMD912x
OTHER
PA0 / D8
PA1 / D9
PA2 / D10
PA3 / D11
PA4 / D12
PA5 / D13
PA6 / D14
PA7 / D15
PB0 / D0
PB1 / D1
PB2 / D2
PB3 / D3
PB4 / D4
PB5 / D5
PB6 / D6
PB7 / D7
PE0 / XIRQ*
PE1 / IRQ*
PE2 / RW
PE3 / LSTRB*
PE4 / ECLK
PE5 / MODA
PE6 / MODB
PE7 / DBE
PG0
PA0 / D8
PA1 / D9
PA2 / D10
PA3 / D11
PA4 / D12
PA5 / D13
PA6 / D14
PA7 / D15
PB0 / D0
PB1 / D1
PB2 / D2
PB3 / D3
PB4 / D4
PB5 / D5
PB6 / D6
PB7 / D7
PE0 / XIRQ*
PE1 / IRQ*
PE2 / RW
PE3 / LSTRB*
PE4 / ECLK
PE5 / MODA
PE6 / MODB
PE7 / DBE
PJ0
PA0 / D8
PA1 / D9
PA2 / D10
PA3 / D11
PA4 / D12
PA5 / D13
PA6 / D14
PA7 / D15
PB0 / D0
PB1 / D1
PB2 / D2
PB3 / D3
PB4 / D4
PB5 / D5
PB6 / D6
PB7 / D7
PE0 / XIRQ*
PE1 / IRQ*
PE2 / RW
PE3 / LSTRB*
PE4 / ECLK
PE5 / MODA
PE6 / MODB
PE7 /
J2/P2 - 60
J2/P2 - 59
J2/P2 - 58
J2/P2 - 57
J2/P2 - 56
J2/P2 - 55
J2/P2 - 54
J2/P2 - 53
J1/P1 - 30
J1/P1 - 29
J1/P1 - 32
J1/P1 - 31
J1/P1 - 34
J1/P1 - 33
J1/P1 - 36
J1/P1 - 35
J1/P1 - 60
J1/P1 - 59
J1/P1 - 58
J1/P1 - 57
J1/P1 - 44
J1/P1 - 43
J1/P1 - 42
J1/P1 - 41
J1/P1 - 26
J1/P1 - 25
J1/P1 - 24
J1/P1 - 23
J1/P1 - 14
J1/P1 - 13
J1/P1 - 12
J1/P1 - 11
J1/P1 - 56
J1/P1 - 55
J1/P1 - 54
J1/P1 - 53
J1/P1 - 40
J1/P1 - 39
J1/P1 - 38
J1/P1 - 37
J1/P1 - 6
BUS PORT - 7
BUS PORT - 5
BUS PORT - 3
BUS PORT - 2
BUS PORT - 4
LCD PORT - 7
LCD PORT - 8
LCD PORT - 9
LCD PORT - 10
LCD PORT - 11
LCD PORT - 12
LCD PORT - 13
LCD PORT - 14
BUS PORT - 6
BUS PORT - 8
BUS PORT - 10
MCU PORT2 - 7
MCU PORT2 - 10
MCU PORT2 - 9
MCU PORT2 - 12
MCU PORT2 - 11
MCU PORT2 - 14
MCU PORT2 - 13
MCU PORT2 - 16
MCU PORT2 - 15
BUS PORT - 32
BUS PORT - 35
MCU PORT2 - 18
BUS PORT - 37
MCU PORT2 - 20
MCU PORT2 - 17
MCU PORT2 - 22
MCU PORT1 - 35
MCU PORT1 - 36
MCU PORT1 - 37
MCU PORT1 - 38
MCU PORT1 - 39
MCU PORT1 - 40
MCU PORT1 - 41
MCU PORT1 - 42
MCU PORT1 - 49
MCU PORT1 - 50
MCU PORT1 - 47
MCU PORT1 - 48
MCU PORT1 - 45
MCU PORT1 - 46
MCU PORT1 - 43
MCU PORT1 - 44
MCU PORT2 - 1
MCU PORT2 - 2
MCU PORT2 - 3
MCU PORT2 - 4
MCU PORT2 - 5
MCU PORT2 - 6
MCU PORT2 - 8
MCU PORT1 - 25
MCU PORT1 - 26
MCU PORT1 - 23
MCU PORT1 - 24
PRU PORT - 25
PRU PORT - 26
LCD PORT - 5
PJ0
PJ1
PG1
PG2
PG3
PG4
PG5
PG6
PG7
PH0
PH1
PH2
PH3
PH4
PH5
PH6
PH7
PJ1
PJ2
PJ3
PJ4
PJ5
PJ6
PJ7
PH0
PH1
PH2
PH3
PH4
PH5
PH6
PH7
PK0
PJ6
PJ7
PH0
PH1
PH2
PH3
PH4
PH5
PH6
PH7
PK0
PK1
PK2
PK3
PK4
PK5
KEYPAD - 1
KEYPAD - 2
KEYPAD - 3
KEYPAD - 4
KEYPAD - 5
KEYPAD - 6
KEYPAD - 7
KEYPAD - 8
PRU
PK1
PK2
PK3
J1/P1 - 5
J1/P1 - 4
J1/P1 - 3
J1/P1 - 22
J1/P1 - 21
J2/P2 - 10
J2/P2 - 30
J2/P2 - 29
J2/P2 - 28
J2/P2 - 27
PRU
PRU
PRU
PRU
PRU
PRU
COM 1
COM 1
PK7/ECS*
PS0/RXD0
PS1/TXD0
PS2/RXD1
PS3/TXD1
PK7/ECS*
PS0/RXD0
PS1/TXD0
PS2/RXD1
PS3/TXD1
PS0/RXD0
PS1/TXD0
PS2/RXD1
PS3/TXD1
COM 2
COM 2
26
J1/P1
J2/P2
PM12D60
PM12DG/DT128
PM12DP256
CMD912x
OTHER
PS4/MIOS
PS5/MOIS
PS6/SCK
PS7/SS*
PT0
PS4/MIOS
PS5/MOIS
PS6/SCK
PS7/SS*
PT0
PS4/MIOS
PS5/MOIS
PS6/SCK
J2/P2 - 26
J2/P2 - 25
J2/P2 - 24
J2/P2 - 23
J1/P1 - 8
J1/P1 - 7
J1/P1 - 10
J1/P1 - 9
J1/P1 - 18
J1/P1 - 17
J1/P1 - 20
J1/P1 - 19
J2/P2 - 14
J2/P2 - 13
J2/P2 - 16
J2/P2 - 15
J2/P2 - 18
J2/P2 - 17
J2/P2 - 20
J2/P2 - 19
J2/P2 - 2
J2/P2 - 1
J2/P2 - 4
J2/P2 - 3
J2/P2 - 6
J2/P2 - 5
J2/P2 - 8
J2/P2 - 7
J1/P1 - 27
J1/P1 - 47
J2/P2 - 47
J2/P2 - 45
J2/P2 - 43
J2/P2 - 41
J2/P2 - 39
J2/P2 - 37
J2/P2 - 35
J2/P2 - 33
J2/P2 - 48
J2/P2 - 46
J2/P2 - 44
J2/P2 - 42
J2/P2 - 40
J2/P2 - 38
J2/P2 - 36
J2/P2 - 34
J2/P2 - 50
J2/P2 - 49
J2/P2 - 32
J2/P2 - 31
MCU PORT1 - 21
MCU PORT1 - 22
MCU PORT1 - 19
MCU PORT1 - 20
MCU PORT1 - 27
MCU PORT1 - 28
MCU PORT1 - 29
MCU PORT1 - 30
MCU PORT1 - 31
MCU PORT1 - 32
MCU PORT1 - 33
MCU PORT1 - 34
MCU PORT1 - 11
MCU PORT1 - 12
MCU PORT1 - 13
MCU PORT1 - 14
MCU PORT1 - 15
MCU PORT1 - 16
MCU PORT1 - 17
MCU PORT1 - 18
MCU PORT1 - 3
MCU PORT1 - 4
MCU PORT1 - 5
MCU PORT1 - 6
MCU PORT1 - 7
MCU PORT1 - 8
MCU PORT1 - 9
MCU PORT1 - 10
PS7/SS*
PT0
PT1
PT2
PT3
PT4
PT5
PT6
PT7
PT1
PT2
PT3
PT4
PT5
PT6
PT7
PT1
PT2
PT3
PT4
PT5
PT6
PT7
RXCAN0
TXCAN0
PCAN2
PCAN3
PCAN4
PCAN5
PCAN6
PCAN7
PP0/PWM0
PP1/PWM1
PP2/PWM2
PP3/PWM3
RXCAN0
TXCAN0
RXCAN1
TXCAN1
PIB4
PIB5
PIB6
PIB7
PP0/PWM0
PP1/PWM1
PP2/PWM2
PP3/PWM3
PM0/RXCAN0
PM1/TXCAN0
PM2/RXCAN1
PM3/TXCAN1
PM4/RXCAN2
PM5/TXCAN2
PM6/RXCAN3
PM7/TXCAN3
PP0/PWM0
PP1/PWM1
PP2/PWM2
PP3/PWM3
PP4/PWM4
PP5/PWM5
PP6/PWM6
PP7/PWM7
BGND / MODC
RESET*
PAD0 / AN0
PAD1 / AN1
PAD2 / AN2
PAD3 / AN3
PAD4 / AN4
PAD5 / AN5
PAD6 / AN6
PAD7 / AN7
PAD8 / AN8
PAD9 / AN9
PAD10 / AN10
PAD11 / AN11
PAD12 / AN12
PAD13 / AN13
PAD14 / AN14
PAD15 / AN15
CAN 1
CAN 1
CAN 2
CAN 2
CAN 3
CAN 3
CAN 4
CAN 4
BGND
RESET*
BGND
RESET*
BDM PORT
BDM PORT
BUS PORT - 40
ANALOG PORT - 1
ANALOG PORT - 3
ANALOG PORT - 5
ANALOG PORT - 7
ANALOG PORT - 9
ANALOG PORT - 11
ANALOG PORT - 13
ANALOG PORT - 15
ANALOG PORT - 2
ANALOG PORT - 4
ANALOG PORT - 6
ANALOG PORT - 8
ANALOG PORT - 10
ANALOG PORT - 12
ANALOG PORT - 14
ANALOG PORT - 16
ANALOG PORT - 18
ANALOG PORT - 17
ANALOG PORT - 20
ANALOG PORT - 19
PAD0 / AN0
PAD1 / AN1
PAD2 / AN2
PAD3 / AN3
PAD4 / AN4
PAD5 / AN5
PAD6 / AN6
PAD7 / AN7
PAD10 / AN10
PAD11 / AN11
PAD12 / AN12
PAD13 / AN13
PAD14 / AN14
PAD15 / AN15
PAD16 / AN16
PAD17 / AN17
VRH0
PAD0 / AN0
PAD1 / AN1
PAD2 / AN2
PAD3 / AN3
PAD4 / AN4
PAD5 / AN5
PAD6 / AN6
PAD7 / AN7
PAD10 / AN10
PAD11 / AN11
PAD12 / AN12
PAD13 / AN13
PAD14 / AN14
PAD15 / AN15
PAD16 / AN16
PAD17 / AN17
VRH0
VRL0
VRH1
VRL1
VRL0
VRH1
VRL1
VRH1
VRL1
27
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