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Codes de produits
0J11285
Z5K500 OEM Specifications
99
14.12 Initialize Device Parameters (91h)
Command Block Output Registers
Command Block Input Registers
Register
7 6 5 4 3 2 1 0 Register
7 6 5 4 3 2 1 0
Data
- - - - -
-
-
- Data
- - - - - -
-
-
Feature
- - - - -
-
-
- Error
...See
Below...
Sector Count
V V V V V V V V Sector Count
- - - - - -
-
-
LBA
Low
- - - - -
-
-
- LBA
Low
- - - - - -
-
-
LBA
Mid
- - - - -
-
-
- LBA
Mid
- - - - - -
-
-
LBA
High
- - - - -
-
-
- LBA
High
- - - - - -
-
-
Device
- - - - H H H H Device
- - - - - -
-
-
Command
1 0 0 1 0 0 0 1 Status
...See
Below...
Error Register
Status Register
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
CRC UNC 0
IDN
0
ABT T0N AMN BSY RDY
DF
DSC DRQ COR IDX ERR
0 0 0 0 0 V 0 0
0 0 0 - - 0 0 V
Table 67 Initialize Device Parameters Command (91h)
The Initialize Device Parameters command enables the host to set the number of sectors per track and
the number of heads minus 1, per cylinder. Words 54-58 in Identify Device Information reflects these
parameters.
the number of heads minus 1, per cylinder. Words 54-58 in Identify Device Information reflects these
parameters.
The parameters remain in effect until the following events:
Another Initialize Device Parameters command is received.
The device is powered off.
Soft reset occurs and the Set Feature option of CCh is set
The device is powered off.
Soft reset occurs and the Set Feature option of CCh is set
Output Parameters To The Device
Sector Count
Sector Count
The number of sectors per track. 0 does not mean there are 256 sectors per track, but
there is no sector per track.
there is no sector per track.
H
The number of heads minus 1 per cylinder. The minimum is 0 and the maximum is 15.