RCA COSMAC Operator's Manual page 42

Microkit
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EXTERNAL
CLOCK IN
CLOCK INHIBIT
CRYSTAL
CLO CK
t-------I~
CLOCK
PERMIT CLOCK
BUS
DMA
au
RUN
8
START
FLI'P
FLOPS
CPU STAT
RUN.l.-UTIUTY
- - 0
~---.
RUNJ!ROGRAM
- - 0
O - - - - - - - t - . l
~ESET
o
o----~
EXTERNAL CL-=--,nt..
CLEAR
LOAD
LOAQLSWITCH
- - 0
o----------I~LA1CHJ---------
...
RUN UTILITY
A 15= I
LOW DESELECT
HIGH DESEL EC
RUN LIGHT
®/
Fig.7:
Block Diagram - Clock and Control Module
- 36 -

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