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Channel
Channel
Only
Full
Only
Full
logout
Logout
Bih
Data
logout
logout
Bits
Data
OOE4
7
LS Read
98
0108
17-20
Read (Bkwd, Op, Rdy, Interface)
8
LS Write
21-23
Write (Op, Rdy, Interface)
9
Channel to Adder latches Dato Transfer and Control
24-31
Channel Checks (Sim, Ill, Prag, Stor Prot, Chan Data,
10
Adder latches to Channel Dato Transfer and Control
11
Chain
9(
Chan Ctr!, IF Ctrl, Chain l)
OIOC
0-27
Unused
12
Lost Cycle
13
Break-Out
28-31
Group 3 Parity (Byte Ctr, lost Word
2,
Reg Full B,
CD= PC Type)
14-17
Storage Byte Control RPgistcr
18
Unused
AO
0110
0-27
Unused
28-31
Group 4 parity (UA Fetch, Cycle Ctr Stop 0,
19-22
ROSDR
sa.
33, 34, 47' 48
Pritirity l, Stat 0)
23
First Cycle Check
24-31
Unused
A4
0114
0-7
Position Register (CCW-1 Type, CCW-2 Type, Unit Sel,
Rd Store, Wr Fetch, Encl Up, Comport:, Interrupt)
OOE8
0-3
Buffer 1
B-10
Cycle Ctr Phase A Step (I, 2, 3)
4-7
Buffer
2
11-13
Clock (AO, Al, Step)
8-11
Buffer 3
14
local Store Request
12-16
1/0
Stats
15
PCI Request
17
Unused
I 16-17
Priority
(2,
3)
18
I
1/0
Check Mode
IB-23
Request Register (0-5)
19-21
Logs (I, 2, 3)
22
Gate Status
24-26
Stats 1-3
28-31
Common Channel Detect (LS, PRI l, PRI
2-3,
PCI,
23
log Reset
24-31
Unused
Inhibit Routine)
AB
0118
0-6
General Purpose Register
(l
-7)
OOEC
0-8
Bc·ff« I (P, 0-7)
7-8
Unused
9-17
Buffer 2 (P, 0-7)
9-13
Flag Register (CDA, CC, SILi, Skip, PCI)
18-31
I
Request Log-Out
OOFO
0
Select Out
I
Select In
2
Op In
14
Finish
15
First Word
16
First Byte
17
Total Record Fetch
3
Suppress Out
IB
Write Chain Proceed
4
P.equest In
19
Stop Re lease
5
Service Out
20-22
Unu~d
6
Address Out
23
Status Next latch
7
Command Out
24-27
Multi-Purpose (Cl-C4)
8
Ser.tice In
28
Suppress Out
9
Address In
29
Request In
10
Status In
30
Servic2 Out Hold
'
11-19
B~s
Out (P, 0-7)
'
I
20
~rogr'am
Check. '
I
21
Storage Prctect Check
22-31
Unu11ed
~I
Block1 Status In
'
AC
01 IC
0
Inhibit Read Store,
'
1-4
A Clock (A, B, C, 0)
5 6
S~c!ol P~rposc
!D
! , 02}
OOF4
0-3
Controlled Emit
7
Instruction Scan
4-B
Routine Request Triggers {A, E 1-E4)
B
Poll
9-11
Priority (2, 3, PCI)
12-17
Control Triggers (CC, OTC, UCW, IB Full, Poll, Burst Mode)
9
Poll Interrupt End
10
Instruction Inhibit
18-21
Mpx
1/0
Stats
22
Doto Transfer Control
II
BC Ready
12
UA to Bus Out
23
CC Reset Control
13
Select Address Out
24-31
Unused
14-15
Compare (= or
I )
B8
OOFB
0-31
SE"lector Channel B Register (0-3 I)
16
Interface Chain Data Address Fint Byte
BC
OOFC
0-27
Unused
17
Chain Oata
28-31
Selec.tor Channel 8 Register Parity
IB
Byte Ctr Mod Enoble
90
0100
0-27
Unused
19
Write Chain Ready
28-31
Selector Chnnnel C Re rister Purity
20
Record End
94
0104
0-31
Selector Channel C Register (0-31)
21
Op In Test
98
0108
0-1
Byte Counter A
(2,
I)
2-4
Byte CounterB(P, 2, I)
5-6
End Register
(2,
I)
22
Channel Stop
23
Select Out
24
Sel In
7-8
Last Words (3,
I)
25
Op In
9
EOR Count Interlock
26-2B
Service Out, Address Out, Command Out
10
EOR I Latch
29-31
Service In, Address In, Status In
II
EOR 2 Latch
BO
0120
0-27
Unused
12
EOR Read Interlock
28
Position Register Transfer
13
B Almost Changed
29
Channel In Use
I
14
lOcol Store fnoble
15
local Store Register Full
16
C Register Full
30
Stop
31
Stop Routine
0124
0-15
Rewrved for Selector Channel and Misc Features
16-31
Reserved for Mpx Channel
FIGURE 12. SCAN-OUT/LOGOUT: LOCATIONS AND DATA (PART 3 OF 4)
Maintenance Featurea
(3/'11)
25
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