Table of Contents
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Board Level Hardware Description
1
Feature
Watchdog timer
Serial I/O
SCSI I/O
Ethernet I/O
IndustryPack
Interfaces
VMEbus interface
(Optional)
NOTE:
This option is a
factory installed and
cannot be added in
the field.
1-6
Description
Provided in MCchip ASIC (VMEchip2)
EIA-232-D DTE serial interface with four
serial ports (Zilog Z85230 controller chips)
Optional Small Computer Systems Interface
(SCSI) bus interface with 32-bit local bus
burst Direct Memory Access (DMA) (NCR
53C710 controller)
Optional LAN Ethernet transceiver interface
with 32-bit local bus DMA (Intel 82596CA
controller)
2 or 4 IndustryPack Interface sites
VMEbus system controller
VMEbus requester
VMEbus interrupter
VMEbus interrupt handler
Eight software interrupts
Programmable map decoders for the master
and slave interfaces
VMEbus to local bus interface (A24/A32,
D8/D16/D32 (D8/D16/D32/D64 BLT)
(BLT = Block Transfer)
Local-bus-to-VMEbus interface
(A16/A24/A32, D8/D16/D32)
Two 32-bit programmable Tick Timers and a
programmable Watchdog Timer (in the
VMEchip2 ASIC) for periodic interrupts
Global CSR for interprocessor
communications
DMA for fast local memory - VMEbus
transfers (A16/A24/A32,
D16/D32 [D16/D32/D64 BLT])
All models
See Table 1-1
See Table 1-1
See Table 1-1
See Table 1-1
All models
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Models
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