IBM DJSA-210 Hard Drive Specifications - Page 165
Seek 7xh, This indicates the head number of the seek.
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13.26 Seek (7xh) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature Sector Count 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 0 1 1 1 - - - - Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count 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 0 V - 0 -V Figure 103. Seek command (7xh) The Seek command initiates a seek to the designated track and selects the designated head. The device does not need to be formatted for a seek to execute properly. Output Parameters To The Device Sector Number In LBA mode this register specifies the LBA address bits 0-7 for seek. (L = 1) Cylinder High/Low This is the cylinder number of the seek. In LBA mode this register specifies the LBA address bits 8-15 (Low) and bits 16-23 (High) for seek. (L = 1) H This indicates the head number of the seek. In LBA mode this register specifies the LBA address bits 24-27 for seek. (L = 1) Input Parameters From The Device Sector Number In LBA mode this register contains the current LBA bits 0-7. (L = 1) Cylinder High/Low In LBA mode this register contains the current LBA bits 8-15 (Low) and bits 16-23 (High). (L = 1) H In LBA mode this register contains the current LBA bits 24-27. (L = 1) Travelstar 32GH/30GT/20GN hard disk drive specifications 151