Motorola MVME166IG/D2 - Manual (Page 19)

Introduction
MVME166IG/D2 1-5
1
Requirements
These boards are designed to conform to the requirements of the following
documents:
❏ VMEbus Specification (IEEE 1014-87)
❏ EIA-232-D Serial Interface Specification, EIA
❏ SCSI Specification, ANSI
❏ VSB Specification (IEEE 1096-1988)
Features
Features of the MVME166 are listed below.
❏ MC68040 Microprocessor
❏ 4/8/16/32/64/128/256MB of 32-bit DRAM with ECC protection
❏ 1 MB of Flash memory and a download EPROM
❏ 128KB SRAM (with battery backup)
❏ Status LEDs for FAIL, STAT, RUN, SCON, LAN, RPWR, SCSI, VME, TPWR and VSB
❏ 8K by 8 RAM and time of day clock with battery backup
❏ RESET and ABORT switches
❏ Four 32-bit tick timers for periodic interrupts
❏ Watchdog timer
❏ Eight software interrupts
❏ I/O
–
SCSI Bus interface with DMA
– Four serial ports with TTL buffers
– Centronics printer port
– Ethernet transceiver interface with DMA
❏ VMEbus interface
–
VMEbus system controller functions
– VMEbus to local bus interface (A24/A32,
D8/D16/D32 (D8/D16/D32/D64BLT) (BLT = Block Transfer))
– Local bus to VMEbus interface (A16/A24/A32, D8/D16/D32)
– VMEbus interrupter
– VMEbus interrupt handler
– Global CSR for interprocessor communications
– DMA for fast local memory - VMEbus transfers (A16/A24/A32,
D16/D32 (D16/D32/D64BLT))
❏ VSB interface
–
Local bus to VSB interface (A16/A24/A32, D8/D16/D32)
– VSB to local bus interface (A16/A24/A32, D8/D16/D32)
– Control and Status Register sets (Board CSRs accessible from both
local bus and VSB; local CSRs accessible from local bus)
(Includes Global CSR for IPC (General Purpose Registers 1 and 2))
– Local bus interrupter
– VSB interrupter and VSB interrupt handler
– Bidirectional write posting - local bus to VSB and VSB to local bus
– EVSB compatible