Hitachi C4K60 Specifications - Page 90

7.5.26. Read Verify Sectors EXT [42h] Task File Register 7 6 5 4 3 2 1 0 Command 42h Feature Previous setting XX Current setting XX LBA High Previous setting LBA bit 47 - 40 Current setting LBA bit 23 - 16 LBA Mid Previous setting LBA bit 39 - 32 Current setting LBA bit 15 - 8 LBA Low Previous setting LBA bit 31 - 24 Current setting LBA bit 7 - 0 Sector Count Previous setting Sector Count bit 15 - 8 Current setting Sector Count bit 7 - 0 Device X 1 X DEV X X X X The READ VERIFY SECTORS EXT command is same as the READ SECTORS EXT command, except that DRQ is never set and no data is transferred to the host. When the requested sectors have been verified, the device clears BSY and generates an interrupt. Upon command completion, the Command Block Registers contain the 48-bit LBA address of the last sector verified. If an error occurs, the verify terminates at the sector where the error occurs. The Command Block Registers contain the 48-bit LBA address of the sector where the error occurred. The Sector Count Register contains the number of sectors not yet verified. K6610170 Rev.2 Dec 22, 2004 - 90 -