Motorola MVME187 User Manual

Board Level Overview

2-9

Provides the VMEbus interface. The VMEchip2 includes:

❏

Two tick timers

❏

Watchdog timer

❏

Programmable map decoders for the master and slave 
interfaces, and a VMEbus to/from local bus DMA controller

❏

VMEbus to/from local bus non-DMA programmed access 
interface

❏

VMEbus interrupter

❏

VMEbus system controller

❏

VMEbus interrupt handler

❏

VMEbus requester 

The PCCchip2 ASIC provides two tick timers and the interface to 
the:

❏

LAN chip

❏

SCSI chip

❏

Serial port chip

❏

Printer port

❏

BBRAM

Processor-to-VMEbus

D8, D16, or D32

VMEchip2 DMA to the 
VMEbus

D16, D32, D16/BLT, 
D32/BLT, or D64/MBLT