XVME-682 Manual
October, 1989
1.5 XVME-682 CPU MODULE OPERATIONAL DESCRIPTION
Figure 1-1 illustrates the functionality of the XVME-682 CPU card. A description of the
components is given on the opposite page.
PC/AT BUS I/F
WATCHDOG
TIMER
ROM
BIOS
80286
CPU
KEYBOARD
I/F
LOCAL AT BUS
80287
NPX
MATH COPROCESSOR
(OPTIONAL)
VMEbus
BUFFERS
1.4 MBYTES DUAL-
PORTED RAM
VMEbus
MASTER/SLAVE I/F
COM 1 COM
TWO SERIAL
PORTS
BATTERY-BACKED
TOD CLOCK
Figure 1-1 XVME-682 CPU Card Block Diagram
1-5
LPT 1
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Содержание XVME-682
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