Motorola 700/800-Series Manuel D’Utilisation

1-14

Board Level Hardware Description

Refer to 

series MVME162LX.

This section contains a functional description of the major blocks on 
the MVME162LX. 

There are two switches and four LEDs on the front panel of the 
MVME162LX.

❏

RESET

 switch. Resets all onboard devices (including IP 

modules, if installed) and drives SYSRESET* if the board is 
system controller. The 

RESET

 switch may be disabled by 

software.

❏

ABORT

 switch. When enabled by software, the 

ABORT

 switch 

generates an interrupt at a user-programmable level. It is 
normally used to abort program execution and return to the 
162Bug debugger.

❏

FAIL

LED (red). Lights when the BRDFAIL* signal line is 

active or when the processor is halted. Part of DS1.

❏

RUN

LED (green or amber). Lights when the local bus TIP* 

signal line is low. This indicates one of the local bus masters 
is executing a local bus cycle. Part of DS1.

❏

SCON

LED (green). Lights when the VMEchip2 in the 

MVME162LX is the VMEbus system controller. Part of DS2.

❏

FUSES

LED (green). Lights when +5Vdc, +12Vdc, and -12Vdc 

power is available to the LAN and SCSI interfaces and IP 
connectors. Part of DS2.