IBM IC35L040AVVN07-0 - 40GB IDE Deskstar 120GXP 7200RPM UATA-100..., Specifications, Page: 198 / 211

11.38 Write DMA Queued (CCh)
see below Status 1 1 0 0 1 1 0 0 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 V V V V V V V V 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 0 V 0 V 0 V 0 V 0 0 V
ERR IDX COR DRQ SRV 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 156. Write DMA Queued Command (CCh)
This command executes in a similar manner to a WRITE DMA command. The device may perform a bus
release or it may execute the data transfer without performing a bus release if the data is ready to be
transferred.
If the device performs a bus release, the host shall reselect the device using the SERVICE command.
When the data transfer has begun, the device does not perform a bus release until the entire data transfer
has been completed.
Output parameters to the device
Feature Number of sectors to be transferred. A value of 00h indicates that 256 sectors are
to be transferred.
Sector Count Bits 7 - 3 (Tag) contain the Tag for the command being delivered.
Sector Number Starting sector number or LBA address bits 7 - 0.
Cylinder High/Low Starting cylinder number or LBA address bits 23 - 8.
H Starting head number or LBA address bits 27 - 24.
Deskstar 120GXP hard disk drive specifications
184