98561-66511
Processor
Board
General
Description
The
98561-66511 processor
board
has
the
following features:
• MC6840 Systern Timer.
•
10
MHz
~fC68010
microprocessor.
•
Boot
ROM.
•
Eight Self-Test LEDs
• 0.5 M-byte of RAM.
• MCA2800ALS RAM Controller.
• Memory Management Unit.
• HP-IB Interface.
• RS-232 Interface.
•
Bit-Mapped
~fonochromatic
Video
Output.
•
HP-HIL
Keyboard
Electronics
with
battery
Real
Time
Clock.
•
Miscellaneous
other
components
needed by
HP
Operating
Systems (HP-UX, Pascal, BA-
SIC).
Figure 3-4
is
a block
diagram
of
the
98561-66511 processor board. Refer
to
this
diagram
for
functional descriptions.
Functional Description
43
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