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-
····--
Op
OCode
Control
Code
. - - - I
Code
DA
M
N
0
78
11 12 13 1516
23
F3
1010
Device address disk drive
1
(A)
1011
-----t-
Device address disk drive 2 (8)
0
Removable disk
5444
1
----t-----:::---
Fixed disk
Disk
000 0000
0000
Control - Seek
001 0000
0000
Read - Data
001 0000
0001
Read - Identifier
001 0000
0010
Read - Diag_nostic
001 0000
0011
Read - Verify
010 0000
0000
Write - Data
010 0000
0001
Write - Identifier
011 0000
0000
Scan - Equal
011 0000
0001
Scan - Low or equal
011
0000
0010
Scan - High or equal
Notes:
•
Bits
16-21
are not used by the attachment .
•
All other N codes invalid .
0011
Device address SIOC
(3)
0
M-bit is not used - zero is preferred.
000 0000
0001
Reset interrupt request
These control codes
000 0000
0010
Enable interrupt ability
may also be used
000
0000
0100
Reset interrupt ability
000 0000
1000
Remove SIOC from busy state
with
N
codes
001
000 0001
0000
Set interru__Q_t re_g_uest
or
010
below.
001 0000
0000
Read
I
/O device
010 0000
0000
Write I /O device
SIOC
011
I /O Control
1
1
1/0 Select 8
1
1/0 Select 7
1
1/0 Select 6
1
1/0 Select
5
1
1/0 Select
4
1
1/0 Select
3
1
1/0 Select
2
1
1/0 Select
1
100
I /0 Control 2
1
1/0 Select
14
1
I
/0 Select
13
1
1/0 Select
12
1
1/0 Select
11
1
I
/0 Select
10
1
1/0 Select 9
1
1/0 Unit 2 Select
1
1/0 Unit
1
Select
All other N codes invalid.
{)()()()
0
000
Device address - DPF - M and N must be zero
0000
0
Not used
1
Enable dual programming mode
DPF
0
Disable dual programming mode
1
Enable interrupt level
0
(system control panel interrupt) key
0
Disable interrupt level
0
1
Reset interrupt request
0
All other N codes invalid.
0101
Device address -
1442
RPO
(5)
0
Must be zero
000
Feed
001
Read translate mode
1442
010
Punch and feed
011
Read Cl mode
100
Punch - No feed
Note: All other N codes invalid.
xx xx
x001
Select stacker
2. x
indicates "don't care" bits.
Any control code combination other than
001
is
is invalid and will result in the card going to stacker
1.
Figure 1-7. (Part 2
of
3) Start 1/0 (SIO) Instruction
1-10 (1/71)
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