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U S E R G U I D E
T h e C P - A b o a r d c o n t a i n s n o u s e r o p t i o n j u m p e r s or any
o ther s p e c i a l c o n n e c t i o n s t h a t m u s t be m a d e to u s e t h e
board.
If the p ane l is m o u n t e d in the I M S Ü 8080
c a b i n e t then the p o w e r o n / o f f s w i t c h s h o u l d be c o n
n e c t e d u s i n g a s e p a r a t e w i r e to th e p o w e r s u p p l y s e c t i o n
as d e s c r i b e d i n the P o w e r S u p p l y d o c u m e n t a t i o n .
p a n e l b o a r d is n o t g o i n g t o b e m o u n t e d i n the cab i n e t ,
t h e n t h e p o w e r s w i t c h s h o u l d n o t b e connec t e d .
case,
the p o w e r s w i t c h on t he i n s i d e or o n the b a c k of
the c a b i n e t w o u l d be u s e d for c o n t r o l l i n g p o w e r t o the
IMSAI 8080.
Panel i n s t a l l a t i o n r e q u i r e s a b a c k p l a n e slot.
m a y b e plugged, d i r e c t l y i n t o the f ront s l o t of t h e m o t h e r
b o a r d
(with t h e m o u n t i n g s c r e w s f r o m th e a c r y l i c face
p l a t e a s s e m b l y e x t e n d i n g t h r o u g h t he m e t a l p a n e l i m m e d
i a t e l y b e h i n d a n d s e c u r e d w i t h lo c k w a s h e r s and nuts)
o r p l u g g e d o n a n e x t e n d e r ca r d i n t o any l o c a t i o n in the
back p l ane.*
T h e 16 p in D I P p l u g o n t he e n d of t h e flat
cable m u s t a l s o be i n s e r t e d into t he c o r r e s p o n d i n g s o c k e t
in the upper r i g h t h a n d c o m e r o f t he M P U - A board.
O n l y o n e front panel s h o u l d be p l u g g e d i n t o the bus at
any time to a v o i d c o n f l i c t s b e t w e e n m u l t i p l e d r i v i n g
s o u r c e s on t h e s a m e s i g n a l lines f or s o m e of the control
lines b e t w e e n the f r o n t p a n e l an d the s y s t e m bus.
front p a n e l is now r e a d y to operate.
The 16 A D D R E S S - D A T A a n d A D D R E S S - P R O G R A M M E R INPUT s w i t c h e s
are 2 p o s i t i o n p a dd l e switches a n d r e p r e s e n t a 0 in the
down p o s i t i o n a n d a 1 in the up p o s i t i o n .
are p r o v i d e d in two c o l o r s , and c a n b e a r r a n g e d e i t h e r
in c o l o r g roups of fo u r to assi s t p r o g r a m m i n g in h e x a
d e c i m a l or c o l o r g r o u p s of 3, 3 an d
p r o g r a m m i n g .
The l o w order byte o f address switches, s e r v e to e nter
into m e m o r y e i t h e r d a t a or p r o g r a m ins t r u c t i o n s .
s w i tches are l a b e l e d A D D R E S S - D A T A . 0 t h r o u g h 7.
b y t e of data o r p r o g r a m th a t is to be e n t e r e d f r o m the
p a n e l is set i n t o t h e s e s w itches a f t e r t he a p p r o p
riate a d d r e s s has b e e n sel e c t e d a n d entered.
* Switches s h o u l d b e i n c l u d e d w h e t h e r the front p a n e l
is m o u n t e d in the f r o n t of t he c a b i n e t or not.
CP-A
User Guide
Revision 1
If t he
I n this
T h e p a n e l
The
T h e sw i t c h e s
to
aid in octal
2 ,
T hese
E a c h
T h e swit c h
4 - 2 3
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