A-Cable Output Signals; Table 4.5.2 Status - Fujitsu M2361A Customer Engineering Manual

4.5.4 A-cable output signals
(1) Status 0 to 7
Tag
Tag
The Status 0 to 7 lines indicate status information determined by
combinations of Tag 4 and Tag 5 signals. Information available is
specified in Table 4.5.2.
Table 4.5.2 Status
4
False True False
True
5
False False True True
Status Unit Status Sector Status Write/Red Check Status
Access Status
0
Unit Ready Sector
1
Index Check
DE Sequence Check
1 On
Cyl inder Sector
2
Control Check Access Time-Out Check
2
Seek Error Sector
4
Multi Head Check Over Shoot Check
3
Fault Sector
8
Head Short Check Rezero Mode Latch
4
Write Protected Sector
16
Write Current on Read Check Servo Latch
5
Address Mark Found Sector 32 Write Transition Check Linear Mode Latch
6
Index Sector
64
Delta I Write Check Control Latch
7
Sector Sector 128 Servo Off-Track Wait Latch
(2) Unit Status
When both Tag 4 and 5 are False, Status 0 ~ 7 indicate the basic
information required for the Seek, Read and Write operations.
a. Unit Ready (Status 0)
When this signal is true and the drive is selected, this signal
indicates that the drive has reached the rated speed. Note that when
the drive is in fault condition, Unit Ready mayor may not be issued
depends on the position of a jumper plug as described in Table 3.5.1.
b. On Cylinder (Status 1)
4 - 30
Indicates that the heads are located on the specified track. This
signal goes false for approximately 4.5 ms at the beginning and at
the end of the offset operation. For a zero Track Seek, On Cylinder
will go false for max. 10 ~s.
Refer to Figures 4.5.11 and 4.5.15.
B03P-4825-0002A .•.
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