4-2
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Functional Description
4
Processor and Memory
The MVME172P4 is based on the MC68060/MC68LC060
microprocessor. The boards are built with 16MB synchronous DRAM
(SDRAM). Various versions of the MVME172P4 may have the SDRAM
configured to model 1MB, 4MB, 8MB, or 16MB of parity-protected
DRAM or 4MB, 8MB, or 16MB of ECC-protected DRAM.
Switches
RESET
and
ABORT
switches on front panel
Status LEDs
Eight: Board Fail
(FAIL)
, CPU Status
(STAT)
, CPU Activity
(RUN)
, System
Controller (
SCON
), LAN Activity
(LAN)
, Fuse Status (
FUSE
), SCSI
Activity
(SCSI)
, VME Activity
(VME)
Timers
Four 32-bit tick timers and watchdog timer in Petra ASIC
Two 32-bit tick timers and watchdog timer in VMEchip2 ASIC
Interrupts
Eight software interrupts (on versions with VMEchip2 ASIC)
VME I/O
VMEbus P2 connector
Serial I/O
Two EIA-232-D, EIA-530, EIA-422, or EIA-425 configurable serial ports
via front panel and transition module
Ethernet I/O
Optional Ethernet transceiver interface via DB15 connector on transition
module
IP interface
Four IndustryPack interface channels via 3M connectors behind front panel
SCSI I/O
Optional SCSI interface with DMA via P2 or LCP2 adapter board
VMEbus interface
VMEbus system controller functions
VMEbus-to-local-bus interface (A24/A32, D8/D16/D32/block transfer
[D8/D16/D32/D64])
Local-bus-to-VMEbus interface (A16/A24/A32, D8/D16/D32)
VMEbus interrupter
VMEbus interrupt handler
Global Control/Status Register (GCSR) for interprocessor communications
DMA for fast local memory/VMEbus transfers (A16/A24/A32,
D16/D32/D64)
Table 4-1. MVME172P4 Features (Continued)
Feature
Description
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