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Board Level Hardware Description
1
4 megabytes of Flash memory
Six status LEDs (FAIL, RUN, SCON, LAN, SCSI, and VME)
8 kilobytes of Static Random Access Memory (SRAM) and Time of Day
(TOD) clock with Battery Backup RAM (BBRAM)
Two push-button switches (ABORT and RESET)
256 kilobytes of BOOT ROM
Six 32-bit tick timers for periodic interrupts
Watchdog timer
Eight software interrupts
I/O
–
–
–
–
VMEbus interface
–
–
–
–
–
–
–
Specifications
The specifications for the MVME197DP/SP are listed in the following table.
1-4
SCSI Bus interface with Direct Memory Access (DMA)
Four serial ports with EIA-232-D buffers
Centronics printer port
Ethernet transceiver interface
VMEbus system controller functions
VMEbus interface to local peripheral bus (A24/A32, D8/D16/D32
BLT (D8/D16/D32/D64))(BLT = Block Transfer)
Local peripheral bus to VMEbus interface (A24/A32, D8/D16/D32
BLT (D16/D32/D64))
VMEbus interrupter
VMEbus interrupt handler
Global CSR for inter-processor communications
DMA for fast local memory - VMEbus transfers (A16/A24/A32,
D16/D32 BLT (D16/D32/D64))
MVME197IG/D1A1
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