HP 8642A Operating Manual page 342

D8-D15
ADDRESS BUS A8-A15
I I I I * I I
DATA BUS DB-D15
TTL HIGH 2
TTL HIGH 1
£s
M5.r_iB
/
A13^15)
o> iu ru
O CD ID
J -
>■ o a o
x x x x x
inioinui m
MEMORY
SELECT
HB-IB SEL
TIMER SEL
_ _ _ _ _ _
FE-ESP
t l ±
N
*
@li
s
@
A A
HP-IB ADDRESS A1-A3
ERROR PET A20-A22
**
I z l
□ c
33 en
m m
1=1
TO
to
23
>
Z
—1
>
1=1
= >
13
T l
<JI
- i
o
m
^) 0 © 0
@
O n
0
O = D
R0M1
SEL