Honeywell BR3C9 Operation Manual page 76

TABLE 3-3. COMMANDS (CaNT 'D)
Command Definition/Function
eIL (Cont'd)
Angular Posi-
tion In (AP1)
Tag
24
Read
CRDX)
Tag
2S
Device Number
Request
(DNR)
Tag
26
83318200· A
3.
Bidirectional data lines are decoded as follows:
!!! Decode
2°
CAR 1
21
CAR 2
22
CAR 4
2 3
CAR
8
24
CAR
16
2
S
CAR 32
26
CAR 64
27
CAR 128
1. An input information command.
2. Gates current angular position (sector to the controller. This
is the value the Sector Counter was at when the APl Tag was
received.
3.
Bidirectional data lines decode as follows:
!ll
Decode
2°
1
21
2
22
4
2 3
8
24
16
2
S
32
26
64
27
Not Used
1.
An input information tag.
2.
Enables the drive to read data from the disk pack. See discussion
on read operations for more information.
1.
An
input information command.
2.
Causes the drive to place the
8
bit physical identifier number on
the bidirectional data lines.
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