Debug Port - Motorola MVME2301 Installation And Use Manual

DEBUG Port

The RJ45 port labeled
supplies the MVME230x serial communications interface,
implemented via a UART PC16550 controller chip from National
Semiconductor. It is asynchronous only. This serial port is
configured for EIA-232-D DTE, as shown in Figure 2-1.
The
DEBUG
MVME230x to serve as the firmware console for the factory
installed debugger, PPCBug. The port is configured as follows:
After power-up, the baud rate of the
reconfigured by using the debuggerÕs Port Format (PF) command.
Refer to Chapters 5 and 6 for information about PPCBug.
Figure 2-1. MVME230x DEBUG Port Configuration
DEBUG
port may be used for connecting a terminal to the
8 bits per character
1 stop bit per character
Parity disabled (no parity)
Baud rate = 9600 baud (default baud rate at power-up)
SOUT
RTS*
DTR*
SIN
CTS*
DCD*
PC16550
MVME230x
on the front panel of the MVME230x
port can be
DEBUG
4
2
8
5
7
1
3
6
Debug
RJ45
MVME230x
2
2-5