M06820
EXPANDED BLOCK DIAGRAM
lFlQA 38
4
<~——40
CA1
Interrupt Status
Control
A
39 CA2
Control
RegisterA
DO
33
(CRA)
D1
32
H
——J\
Data Direction
DZ 31
<———>
|—-—'———J—}—1/
Register
A
03
30
<—>
Data Bus
(DORA)
Buffers
<
D4 29
‘
-
(DBB)
Output
Bus
v
05
28
H
D6 27
<—>
H
2
”0
D7
26
,
Output
H
3 PA1
Register
A
(ORA)
4 PA2
Peripheral
H
5
PA3
InterAface
6 FAA
;
H
7
PAS
Bus
|nput
m
<—>
Register
*5
8
PAS
(BIR)
E51
H
9
PA?
V
=P'
20
cc
l”
<——>1o
PBO
VSS
:
Pin
1
Output
H11
P81
Register 8
>
:
>
(ORB)
<—>
12
P82
cso
22
—>
Peripheral
H13
P83
Interface
CS1
24
—>
B
<—->
14
P84
C82 23
—>
Chip
H
15
P85
Select
R50 36
—>
and
H16
P136
RS1
35
‘—‘>
R/W
H17
PB7
R/W
21
I
Control
Enable 25
———-<>-
A
Reset 34
—-——>‘
Data Direction
Control
Register
B
:>
Register a
(DDR8)
(CRB)
‘————-
18 CB1
interrupt Status
IRQB 37
=
C°”t'°'
3
H19
CB2
_______.
.
MOTOROLA
Semiconductor Products
Inc-
A—24
Summary of Contents for P7001 /IEEE 488
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