IBM Series 1 User Manual page 92

Figure
2-28
(Pa.rt
2
of
2) •
1/0
Cha~!. Pin ~!H! Cabl~
Assignmegts--Signal Lines
C
DIR
I/O
PIN I
I/O CHANNEL
I
Line Name ASSIGN
I
CABLE ASSIGNPlENT
I
I
"
I
12 J .3
I
#4
I
Data 5trobe--------------
- - - ) --It
10----1
J
I
B10
I I
Halt or
~CHK-------------
--->
--£107----
I
I B07
I
I
Initiate IPL-------------
--->
--P07----
I
t
007 I
I
IPL----------------------
<--- --504----
I
I
I B04 J
Poll---------------------
--->
--M12----
I
I
B12 I
I
Poll Identifier Bit 00--- ---> --Pl1----
,
I
D11 I
I
Poll Identifier Bit 01--- ---> --502----
I
I I
B02 I
Poll Identifier Bit 02---
--->
--503----
J
I
I B03
j
Poll .Iden tifier Bit 03--- ---> --P12----
I
D12
I
I
Poll Identifier Bit
04---
--->
--P13----
I
013 I
I
Poll Prime--------------- ---> --"13----
I
B13
J I
Poll Propagate----------- ---> --"11----
J I
I
Poll Return-------------- <---1--1104----
1
B04 I
I
Power On Reset
*1--------
--->'--505----
)
I
B05
t
Request
In
Bus Bit--OO--- <---)--S07----
I
)
B07 I
Request In Bus Bit--Ol--- <---I--S08----
I
I
B08 t
Request In Bus Bit--02--- <---I--509----j
J
I 509 I
Request In
Bus
Bit--03--- <---1--510----
I I
B10
•
Request In Bus Bit--04--- <---1--512----
I
I B12 I
Request In Bus Bit--05--- <---)--513----
I I
Bll I
Request In Bus Bi·t--06--- <--- --U02----
1
I 002 I
Request In Bus Bi t-·-07--- <--- --U04----
I
I D04 I
C
Request
In Bus Bit--OB---
( - - -
--U05----
J
I 005 I
Request In Bus Bit--09---
<---
--U06----
I
I
D06 I
Bequest In Bus Bit--l0--- <--- --U07----
4
I D07 I
Request In Bus Bit--11---
( - - -
--U09----
I
I D09 I
Request In Bus Bit--12---I<--- --U10----
I
I Dl0 I
Request In Bus Bit--13---I<---
--U11----
I I
011 I
Request In Bus Bit--14---J<--- --U12----
I I
012
J
Beques·t
In
Bus Bit--15---I<---
--0'3--·--
I I
D13 I
Service Gate-------------I---> --P05----
,
005 I
I
Service Gate Beturn------I<--- --P06----
I
D06 f
I
Status Bus Bit------OO---I--->
--J13----
I
013
I I
Status Bus Bit------01---I--->
--G13----1
I
813
1 I
Status Bus Bit------02---I---> --M03----1
I
B03 I
I
Status Bus Bit------03---I---> --P02----1
I
002 1
I
System Reset-------------I---> --(105----1
J
B05
I I
*1
Pover-on-reset at
an
I/O socket is the power-on reset
signal from the unit pover supply powering the
I/O.
socket. Pin 505 on the 4955 processor A-socket is not
connected and is jumpered from 505 of the B-socket
when
an
I/O
attachment or repover feature is installed.
Pover-On reset in the
I/O
channel cable is the unit
pover-on-reset signal from the next outboard
I/O
expansion unit.
0
Processor I/O Channel 2-77