IBM DJSA-210 Hard Drive Specifications - Page 197

Write Multiple C5h, In LBA mode this register contains the LBA bits 0-7. L = 1

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13.38 Write Multiple (C5h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature Sector Count V V V V V V V V Sector Number V V V V V V V V Cylinder Low V V V V V V V V Cylinder High V V V V V V V V Device/Head 1 L 1 D H H H H Command 1 1 0 0 0 1 0 1 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count V V V V V V V V Sector Number V V V V V V V V Cylinder Low V V V V V V V V Cylinder High V V V V V V V V Device/Head - - - - H H H H Status see below Error Register 76543210 CRC UNC 0 IDN 0 ABT T0N AMN 000V0V00 Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 V V V - 0 -V Figure 127. Write Multiple command (C5h) The Write Multiple command transfers one or more sectors from the host to the device, then the data is written to the disk media. Command execution is identical to the Write Sectors command except that an interrupt is generated for each block-as defined by the Set Multiple command-instead of for each sector. The sectors are transferred through the Data Register 16 bits at a time. Output Parameters To The Device Sector Count This indicates the number of continuous sectors to be transferred. If the Sector Count of zero is specified, then 256 sectors will be transferred. Sector NumberThis indicates the sector number of the first sector to be transferred. (L = 0) In LBA mode this register contains the LBA bits 0-7. (L = 1) Cylinder High/Low This indicates the cylinder number of the first sector to be transferred. (L = 0) In LBA mode this register contains the LBA bits 8-15 (Low) and bits 16-23 (High). (L = 1) H This indicates the head number of the first sector to be transferred. (L = 0) In LBA mode this register contains the LBA bits 24-27. (L = 1) Travelstar 32GH/30GT/20GN hard disk drive specifications 183

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13.38 Write Multiple (C5h)
see below
Status
1 1 0 0 0 1 0 1
Command
- - - - H H H H
Device/Head
1 L 1 D H H H H
Device/Head
V V V V V V V V
Cylinder High
V V V V V V V V
Cylinder High
V V V V V V V V
Cylinder Low
V V V V V V V V
Cylinder Low
V V V V V V V V
Sector Number
V V V V V V V V
Sector Number
V V V V V V V V
Sector Count
V V V V V V V V
Sector Count
see below
Error
- - - - - - - -
Feature
- - - - - - - -
Data
- - - - - - - -
Data
7 6 5 4 3 2 1 0
Register
7 6 5 4 3 2 1 0
Register
Command Block Input Registers
Command Block Output Registers
V
–
0
–
V
V
V
0
0
0
V
0
V
0
0
0
ERR
IDX
COR
DRQ
DSC
DF
RDY
BSY
AMN
T0N
ABT
0
IDN
0
UNC
CRC
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Status Register
Error Register
Figure 127. Write Multiple command (C5h)
The Write Multiple command transfers one or more sectors from the host to the device, then the data is
written to the disk media.
Command execution is identical to the Write Sectors command except that an interrupt is generated for
each block—as defined by the Set Multiple command—instead of for each sector. The sectors are
transferred through the Data Register 16 bits at a time.
Output Parameters To The Device
Sector Count
This indicates the number of continuous sectors to be transferred. If the Sector
Count of zero is specified, then 256 sectors will be transferred.
Sector Number
This indicates the sector number of the first sector to be transferred. (L = 0)
In LBA mode this register contains the LBA bits 0–7. (L = 1)
Cylinder High/Low
This indicates the cylinder number of the first sector to be transferred. (L = 0)
In LBA mode this register contains the LBA bits 8–15 (Low) and bits
16–23 (High). (L = 1)
H
This indicates the head number of the first sector to be transferred. (L = 0)
In LBA mode this register contains the LBA bits 24–27. (L = 1)
Travelstar 32GH/30GT/20GN hard disk drive specifications
183