HP 13255 Technical Information page 15

13255
General
Purpns~
AsynChrOnous Data romm Module
Table 6.4
Modul~
Bus PIn
Asslqn~ents
13255-91089/13
Pev AUG-01-76
================================================================================
Function
performert: nutput Control Reqister Rits
Poll Bit: Not ApplIcable
Module Address: (ADOR 11,10,9,4) = (Al1,A10,A9,A4)
Switch Selectable (0001)=Data Comm
(010l)=Printer
Function Soecifier: AOOR5 = 0
AODP6
=
1
Data
BUS
Bit Interpretation:
87
Not Used
Sb
0
= No Break
1
= Break:
B5 0
= Enahle Parity
,
Valu~
-~-
..
-
..
-
-------
X
X
X
X
Atl
AtO
A9
X
X
1
0
A4
X
X
X
X
...
------
------_
...
-
87
B6
BS
B4
Bl
B2
B1
80
Bus
5iqnal
....
_
......
----------.
-----_
...
-----
ADDR 15
ADOR 14
AODR
13
ADOR
12
ADOR
1 1
AOOR
10
AOOR 9
ADDR
8
ADOR
7
AOOR
f'
ADOR
5
AOOR
4
ADOR
3
ADDR
2
AOOR
1
ADOR
0
...
---_
....
__
..
--
----_
...
_-
....
-
...
-
BUS 7
BUS
6
BUS 5
BUS
4
BUS
3
AUS
2
BUS
1
BUS 0
1
= Inhibit Parity
-
....
---~-~~----~---~-~
--~--~~-----~~~-~-~-
I=Loqical 1=8us
LOW
o=Loqical O=Bus High
R4
0 = Odd
Parity X=Oon·t Care
1 = Even Parity
~---~---~~----------~
~--~-----------~---~-
RECFIVE BAUD PATE
I_~
____
-~-----~--------~~--------~----~-----------
tExt Clk
110 150
300
1'00 2400 4Aon 9600 I
t===============================================t
R3 • 0 0 0 0 1 1 1
t ,
I I
82 ' 0 0 1 0 0 1 1 I
I I
R1 I 0 l o t 0 1 0 1 I
80
~-----~~--~---~----~~---.~-~~-~--~-----------~--­
---~----~------~~~---------~-----~---~---------~~
o
=
CA
o~
1
=
CA off
============'====================================================================