5XX MOTHERBOARD ONLY AXIOM, 5XX MOTHERBOARD ONLY Datasheet - Page 14

• Manufacturer Part Number: 5XX MOTHERBOARD ONLY
• Description: CMD-5XX MOTHERBOARD ONLY
• Manufacturer: AXIOM

Specifications of 5XX MOTHERBOARD ONLY

• Silicon Manufacturer: Freescale
• Core Architecture: Power
• Core Sub-architecture: PowerPC
• Features: Plug And Play, Axiom Monitor, Communication Interfaces, Keypad And LCD Module Support
• Kit Contents: Board
• Silicon Core Number: MPC555, MPC556, MPC561
• Silicon Family Name: MPC5xx

Communication Ports
The CMD-5xx board provides interfaces for up to 4 SCI serial ports, 3 TouCan ports and a DLC/J1850 port. COM-1 and COM-2
serial ports with female DB9 connectors are available for RS232 operation of host MPC5xx SCI A channels 1 and 2. COM-3 and
COM-4 serial ports with 10 pin IDC to DB9 connector headers are available for RS232 operation of host MPC5xx SCI B channels
1 and 2 if available. All COM ports provide the following standard pinout in a standard female 9 pin serial connector (DB9-S):
COM_SWITCH - Serial Port Configuration
The COM_SWITCH provides a means of isolating the individual SCI RXD and TXD signals from the RS232 interface translator
device (U31). This allows the SCI channels to be used for other purposes. In conjunction with the COM_PORT header, additional
signals can be applied to the RS232 interface translator. Following is a table of the SCI signals and switch positions used for
enabling RS232 operation.
JP1 – COM-2 DCE/DTE Option
1
1
Switch Position and
default condition
Notes:
1. All COM ports provide connection pads so that flow control signals may be applied by user modification. Each connection
2. COM-2 has a DCE/DTE option, see below.
COM-2 is optioned as a DCE type RS232 connection by default (same as COM-1). This allows direct connection to a
standard PC serial port.
COM-2 DTE option. This requires a NULL modem adapter to connect to a standard PC com port.
5 – Off
6 – Off
7 – Off
8 – Off
Pin 1, 4, and 6 = connected for DTR/DSR flow control null
Pin 2 = TXD output (RS232 level)
Pin 3 = RXD input (RS232 level)
Pin 5 = Ground/Vss/Common
Pin 7 and 8 = connected for RTS/CTS flow control null
Pin 9 = open
pad is numbered for the associated serial connector pin. Each connection pad can be isolated from the others in it's group
by cutting the associated trace on the bottom side of the board.
1 – On
2 – On
3 – On
4 – On
SCI Channel Signal
SCI_A_ TXD1
SCI_A_ RXD1
SCI_A_ TXD2
SCI_A_ RXD2
SCI_B_ TXD1
SCI_B_ RXD1
SCI_B_ TXD2
SCI_B_ RXD2
RS232 COM Port Connection
COM-1
COM-1
COM-2
COM-2
COM-3
COM-3
COM-4
COM-4
14
COM_PORT Signal Direction to RS232
interface translator
Output
Output
Output
Output
Input
Input
Input
Input
CMD-5xx 08/07/02