HP 13255 Technical Information page 8

13255
General
Purpos~
Asynchronous Data romm MOdule
13255·9108Q/06
Pev AlJG-01-7b
Table
5.0
Connector Information (Cont'd.)
=====:=========-=================================================================
Connector
and Pin
No.
-
-.
-
---
--
--
-
-
-
--
--.-.-----------
P1, Pin"
-c
-n
-E
-F
-.1
-J<
-"1
.p
-s
-T
-n
-v
-w
-x
-y
-z
Signa]
Siq~al
Name
1
Description
I
================1==============================================
GND I
Ground Common Return (Power and Sln.nal)
,
+12V
PWR ON
BUSO
RUSt
~US2
RUS3
RUS4
~US5
BUS6
RUS7
WRITF.
PRIOR IN
PRYOR OUT
REO
ATN
1
Not Used
,
System Power On
Neaative True, Data Bus Bit
0
Neaatlve Trup, Data
RU5
Ait
1
~leaat
1
ve True, Data Bus Pit
2
Neaative True, Data Bus Bit
3
Neaatlve True, Data Bus Bit
4
NeQatlve True, Data Bus Ait
C;
Neaative True, Data Bus
~lt 6
Neqatlve True, Data Bus BIt
7
Neaative True, WrIte/Read Type Cvcle
•
}
Not Used
}
Bus Controller Pr lori. tv
In
Bus Controller Prloritv Out.
}
}
}
Not used
}
}
NeQative True, Request (Bus nata
Currently Valid)
Neqatlve True, Data Comm Interrupt Request
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