HP 13255 Technical Information page 17

13255
CartrIdge Tape MOdule
Table
5.3
Module Bus Pin Assignments
13255-91032/15
Rev AUG-01-76
=====::===================================:======================================
Function
P~er
tormed: Output Command to
rTU
Module Address:
(ADDR 11,10,9,4)
=
(1011)
Function Specifier:
ADDR5
=
0
Data Bus Bit Interpretation:
81 -
ANL
o
= Turns off left eject button light
1
=
Turns on left eject button liqht
Bb - ANR
o
=
Turns off the right eject button light
1
=
Turns on the right eject button light
B~
- GEN
o
=
Disables
gap
recording
1 = Record gap on tape (Bit 3 must also be
!)
84 - USL
o
=
Houte command to right drive
1
= Route command to left drive
BJ -REC
o =
Read mode
1
= Record mode (enable write circuit)
Bi - FST
o
=
Run tape at slow speed
(10
ips)
1
= Run tape at high speed
(60
ips)
81 -
FWD
o
=
Forward
1
= Reverse
au -
RUN
o
=
stop tape
1 = Move tape according to FST and FWD
Bus
Value Signal
_
....
- .. --- -
..
-
....
_-
...
-----
--
....
-.-.--
----
...
-------
X
ADDR
15
X
ADDR 14
X
AODR
13
X ADDR
12
1 AUOR 11
0
ADDR
10
1 ADDR
9
X
ADDR
8
X ADDR 7
X
ADOR
6
0
ADOR
5
1
AVDR
4
X
ADOR
3
X
AODR
2
X ADOR 1
X ADDR 0
-- ..
~-.--
--_
..
-._----
.....
-
...
--_
.....
--
.---_
....
_--------
87 BUS
7
b6 BUS 6
85
BUS
5
B4
BUS
4
B3
BUS 3
B2 BUS
2
Bl 8US
1
60 BUS
0
===================:
l=Loqical l=Bus LOw
O=Logical O=Bus High
X=Oon't Care
=====================
=====:===========================================================================