user manual

Features

2-5

❏ RESET and ABORT switches

❏ Four 32-bit tick timers for periodic interrupts

❏ Watchdog timer

❏ Eight software interrupts

❏ I/O

Ð SCSI Bus interface with DMA

Ð Four serial ports with EIA-232-D buffers with DMA

Ð Centronics printer port

Ð Ethernet transceiver interface with DMA

❏ VMEbus interface

Ð VMEbus system controller functions

Ð VMEbus interface to local bus (A24/A32, D8/D16/D32

and D8/D16/D32/D64BLT) (BLT = Block Transfer)

Ð Local bus to VMEbus interface (A16/A24/A32,

D8/D16/D32)

Ð VMEbus interrupter

Ð VMEbus interrupt handler

Ð Global CSR for interprocessor communications

Ð DMA for fast local memory - VMEbus transfers

(A16/A24/A32, D16/D32 and D16/D32/D64BLT)