Xycom XVME-682 Manual page 50

X V M E - 6 8 2 Manual
October , 1989
Appendix D
B L O C K D I A G R A M S , A S S E M B L Y D R A W I N G S , & SCHEMATICS
NOTE
T h e s e s c h e m a t i c s a n d a s s e m b l y d r a w i n g s a r e for the
R e v i s i o n L e v e l C a r t w o r k ONLY.
X V M E - 6 8 2 C P U B L O C K DIAGRAM
WATCHDOG
KEYBOARD
TIMER liF
L O C A L A T BUS
80287
ROM 80286
NPX
BIOS CPU
M A T H COPROCESSOR
(OPTIONAL)
MASTER/SLAVE I/F
D-1
P C / A T BUS I/F
C O M 1 COM 2 L P T 1
T W O SERIAL PARALLEL
PORTS INTERFACE
BUFFERS
B A T T E R Y -BACKED
T O D CLOCK
1 . 4 M B Y T E S DUAL-
PORTED RAM
VMEbus
A r t i s a n T e c h n o l o g y G r o u p - Q u a l i t y Instrumentation .
. G u a r a n t e e d I ( 8 8 8 ) 8 8 - S O U R C E I www.artisantg.com