Technical data

MVME51005E Single Board Computer Installation and Use (6806800A38B)

2 Operation

Note

SYSRESET# remains asserted for at least 200 ms, as required by the VMEbus

specification.

Status Indicators

There are two Light-Emitting Diode (LED) status indicators located on the MVME5100 front

panel. They are labeled

BFL and CPU.

RST Indicator (DS1)

The yellow BFL LED indicates board failure; this indicator is also illuminated during reset as an

LED test. The

BFL is set if the MODFAIL Register or FUSE Register is set. Refer to the

MVME5100 Single Board Computer Programmer’s Reference Guide (V5100A/PG) for

information on these registers.

CPU Indicator (DS2)

The green CPU LED indicates CPU activity.

Connectors

There are three connectors on the front panel of the MVME5100. Two are bottom-labeled

10/100BASE T and one is labeled DEBUG.

10/100BASE T Ports

The two RJ-45 ports labeled 10/100BASE T provide the 10BASE T/100BASE TX Ethernet LAN

interface. These connectors are top-labeled with the designation

LAN1 and LAN2.

DEBUG Port

The RJ-45 port labeled DEBUG provides an RS232 serial communications interface, based on

TL16C550 Universal Asynchronous Receiver/Transmitter (UART) controller chip. It is

asynchronous only. For additional information on pin assignments, refer to Chapter 6, Pin

Assignments.

The

DEBUG port may be used for connecting a terminal to the MVME5100 to serve as the

firmware console for the factory installed debugger, PPCBug. The port is configured as follows:

❏ 8 bits per character

❏ 1 stop bit per character

❏ Parity disabled (no parity)

❏ Baud rate = 9600 baud (default baud rate at power-up)

After power-up, the baud rate of the

DEBUG port can be reconfigured by using the debugger’s

Port Format (PF) command.