BVME4000/6000
58
Copyright
1993,1995,1998,2001 BVM Ltd.
8. Specifications
8.1 On-Board
Functions
BVME4000: MC68040, MC68LC040 or MC68EC040 CPU at 25MHz/33MHz.
BVME6000: MC68060, MC68LC060 or MC68EC060 CPU at 50MHz/66MHz (25MHz/33MHz bus).
Z85230 Dual Serial interface controller, 7.3728MHz or external clock source,
RS232 buffers (RS422 & RS485 options), front panel and P2 connections.
DP8570A Timer Clock Peripheral (calendar-clock, 3 timers, 44 byte NVR).
MC68230 Parallel Interface/Timer, front panel and P2 printer connections.
NCR53C710-1 DMA SCSI Controller, header and P2 connections.
85296CA DMA Ethernet/Cheapernet Controller,
Front panel BNC Cheapernet and P2 AUI connections (RJ45 10BaseT option).
MAX791 Watchdog: refresh period = 1000mS (when enabled).
2 x 32-pin CPU PROM sockets, 16-bit wide, accept 512Kbit to 8Mbit EPROM's, 4Mbit FLASH,
(90ns @ 25MHz bus, 120ns @ 33MHz bus).
512K/2Mbytes CMOS SRAM, 32-bit wide, battery backed (up to 7 days or 2.5 years).
32-bit wide memory module interface with burst-fill up to 2/1/1/1.
2Kbit serial access EEPROM.
LOCAL BUS TIMEOUT period 64 CPU clocks (2.56
µ
S @ 25MHz bus clock).
RED LED indicates VMEbus MASTER access.
GREEN LED indicates processor status.
RESET switch (if enabled).
ABORT switch (level 7 auto-vectored interrupt).
8.2 VMEbus
Master
FAIR Bus Requester, request on any of 4 levels.
A32, A24, A16
D32, D16, D08(EO)
RMW
AM6
8.3 VMEbus
Slave
A32, A24, A16
D32, D16, D08(EO)
RMW
AM6
LOCATION MONITOR
8.4
VMEbus System Controller Functions
ARBITER: SGL, PRI or RRS, software programmable, FAIR ROR (RWD option).
SYSCLK Driver.
SYSRESET Driver/Monitor power-up and switch.
VMEbus RESET minimum period = 200mS.
BUS TIMEOUT period 128
µ
S.
BUS ERROR monitor.
ACFAIL monitor (level 7 auto-vectored interrupt).
Содержание BVME4000
Страница 2: ...This page is intentionally left blank...
Страница 10: ...viii This page is intentionally left blank...