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SST58SD024 датащи(PDF) 28 Page - Silicon Storage Technology, Inc |
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SST58SD024 датащи(HTML) 28 Page - Silicon Storage Technology, Inc |
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28 / 40 page ![]() 28 Data Sheet ATA-Disk Chip SST58SD008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 SST58LD008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 ©2001 Silicon Storage Technology, Inc. S71167-05-000 9/01 391 3.2.1.12 Read Verify Sector(s) - 40H or 41H This command is identical to the Read Sectors command, except that DRQ is never set and no data is transferred to the host. When the command is accepted, the ADC sets BSY. When the requested sectors have been verified, the ADC clears BSY and generates an interrupt. Upon command completion, the Command Block Registers contain the cylinder, head, and sector number 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 cylinder, head and sector number of the sector where the error occurred. The Sector Count Register contains the number of sectors not yet verified. 3.2.1.13 Recalibrate - 1XH This command is effectively a NOP command to the ADC and is provided for compatibility purposes. 3.2.1.14 Seek - 7XH This command is effectively a NOP command to the ADC although it does perform a range check of cylinder and head or LBA address and returns an error if the address is out of range. Bit -> 76 54 32 10 Command (7) 40H or 41H C/D/H (6) 1 LBA 1 Drive Head (LBA 27-24) Cyl High (5) Cylinder High (LBA 23-16) Cyl Low (4) Cylinder Low (LBA 15-8) Sec Num (3) Sector Number (LBA 7-0) Sec Cnt (2) Sector Count Feature (1) X Bit -> 76 54 32 10 Command (7) 1XH C/D/H (6) 1LBA 1 Drive X Cyl High (5) X Cyl Low (4) X Sec Num (3) X Sec Cnt (2) X Feature (1) X Bit -> 76 54 32 10 Command (7) 7XH C/D/H (6) 1 LBA 1 Drive Head (LBA 27-24) Cyl High (5) Cylinder High (LBA 23-16) Cyl Low (4) Cylinder Low (LBA 15-8) Sec Num (3) X (LBA 7-0) Sec Cnt (2) X Feature (1) X |
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