Lop Simplified Logic Diagram - HP 3000 III Series Manual

I/O System
MATES WITH CPU
r _ - - - - - - - - - - - - - - - . . - I
A ' - - - - - - - - - - - - - - - - - - ,
o
U
STORE
I
I
u-eus IDA
I
100
J
Mcuol,
Ie
IOSTRoe
EXT
1" I
-Q
1
INT
100 DATA OUT lOA 18151
I I
100 DATA IN
I
STORE
f
j
I
I
C ... )
IDA
lOP DATA OUT
l
J 1
ORTSTOR
1
I~A
I B
MUX A
I
I
~
INC
I
'2
EXTlNl
INTERRUPT
I CONTROL
I
lOP DATA IN
I
>:C
10' REO
INPUT/OUTPUT
lOP CONTROL
PROCESSOR
-
-
------~
10HREO
- - f-------------
:
10HSEL
10Lsn
I
10MOP
- ~ - - - - -
10TO
~
r0 ~
MOO
SELECT
I
Y
100 + 'ARITY
17
OEIIf«l 7
10CMO 3
SO
SI
..SPED
DATA POLL
INT REO
INT POLL
INT ACK
lOX 4
DATA DATA
SO SI
IOCMO
POLL
POLL
100 IOX/4
elEV:NO
IiSRf.O
OUT IN
lOP
BUS
l"--- y __ -------------~---
TO MUX CHANNEL
Figure 7-10.
lOP Simplified Logic Diagram
7-17