IBM IC25N005ATDA04, Specifications

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13.38 Write Long (32h/33h)
see below Status 0 0 1 1 0 0 1 R 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 Sector Count 0 0 0 0 0 0 0 1 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 133. Write Long command (32h/33h)
The Write Long command transfers the data and the ECC bytes of the designated one sector from the
host to the device, then the data and the ECC bytes are written to the disk media.
After 512 bytes of data have been transferred, the device will keep setting DRQ = 1 to indicate that the
device is ready to receive the ECC bytes from the host. The data is transferred 16 bits at a time and the
ECC bytes are transferred 8 bits at a time. The number of ECC bytes are either 4 or 40 according to
setting of the Set Feature option. The default number after power on is 4 bytes.
Output Parameters To The Device
Sector Count This indicates the number of continuous sectors to be transferred. The Sector
Count must be set to one.
Sector Number This indicates the sector number of the 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 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)
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
191