Motorola MVME187 用户手册

2-4

Board Level Hardware Description

The MVME187Bug debug monitor firmware (187Bug) is provided 
in two of the four EPROM sockets on the MVME187. 

It provides:

❏

Over 50 debug commands

❏

Up/down load commands

❏

Disk bootstrap load commands

❏

A full set of onboard diagnostics

❏

A one-line assembler/disassembler

The 187Bug user interface accepts commands from the system 
console terminal. 

187Bug can also operate in a System Mode, which includes choices 
from a service menu.

❏

M88000 Microprocessor (one MC88100 MPU and two 
MC88200 or MC88204 CMMUs) 

❏

4/8/16/32/64MB of 32-bit DRAM with parity or 
4/8/16/32/64/128/256MB of 32-bit DRAM with ECC 
protection

❏

Four 44-pin PLCC ROM sockets (organized as two banks of 
32 bits) 

❏

128KB Static RAM (with optional battery backup as a factory 
build special request)

❏

Status LEDs for 

FAIL

, 

STAT

, 

RUN

, 

SCON

, 

LAN

, 

+12V

 (LAN 

power), 

SCSI

, and 

VME

. 

❏

8K by 8 static RAM and time of day clock with battery backup