Hitachi HTS541680J9SA00 Specifications - Page 112
Read Verify Sectors 40h/41h
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Travelstar 5K160 (SATA) Hard Disk Drive Specification 14.24 Read Verify Sector(s) (40h/41h) Command Block Output Registers Register 76543210 Data -------- Feature -------- Sector Count VVVVVVVV LBA Low VVVVVVVV LBA Mid VVVVVVVV LBA High VVVVVVVV Device - L - - HHHH Command 0 0 1 0 0 0 0R Command Block Input Registers Register 76543210 Data -------- Error ...See Below... Sector Count VVVVVVVV LBA Low VVVVVVVV LBA Mid VVVVVVVV LBA High VVVVVVVV Device - - - - HHHH Status ...See Below... Error Register 7 6 5 4 3 2 1 0 CRC UNC 0 IDN 0 ABT T0N AM N 0V0V0V0 0 Figure 68 Read Verify Sector(s) Command (40h/41h) Status Register 7 6543 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0V0V - 0 0V The Read Verify Sector(s) verifies one or more sectors on the device. No data is transferred to the host. The difference of Read Sector(s) command and Read Verify Sector(s) command is whether the data is transferred to the host or not. If an uncorrectable error occurs, the read verify will be terminated at the failing sector. Output Parameters To The Device Sector Count The number of continuous sectors to be verified. If zero is specified, then 256 sectors will be verified. LBA Low The sector number of the first sector to be transferred. (L=0) In LBA mode, this register contains LBA bits 0 - 7. (L=1) LBA High/Mid The cylinder number of the first sector to be transferred. (L=0) In LBA mode, this register contains LBA bits 8 - 15 (Mid), 16 - 23 (High). (L=1) H The head number of the first sector to be transferred. (L=0) In LBA mode, this register contains LBA bits 24 - 27. (L=1) R The retry bit, but this bit is ignored. Input Parameters From The Device Sector Count The number of requested sectors not verified. This will be zero, unless an unrecoverable error occurs. LBA Low The sector number of the last transferred sector. (L=0) In LBA mode, this register contains current LBA bits 0 - 7. (L=1) LBA High/Mid The cylinder number of the last transferred sector. (L=0) In LBA mode, this register contains current LBA bits 8 - 15 (Mid), 16 - 23 (High). (L=1) H The head number of the last transferred sector. (L=0) In LBA mode, this register contains current LBA bits 24 - 27. (L=1) 112/167