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SST58LD008-70-C-P1H Datasheet(PDF) 33 Page - Silicon Storage Technology, Inc |
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SST58LD008-70-C-P1H Datasheet(HTML) 33 Page - Silicon Storage Technology, Inc |
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33 / 40 page  Data Sheet ATA-Disk Chip SST58SD008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 SST58LD008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 33 ©2001 Silicon Storage Technology, Inc. S71167-05-000 9/01 391 Errors encountered during Write Multiple commands are posted after the attempted writes of the block or partial block transferred. The Write command ends with the sector in error, even if it is in the middle of a block. Subsequent blocks are not transferred in the event of an error. Interrupts are generated when DRQ is set at the beginning of each block or partial block. The Command Block Registers contain the cylinder, head and sector number of the sector where the error occurred and the Sector Count Register contains the residual number of sectors that need to be transferred for successful completion of the command e.g. each block has 4 sectors, a request for 8 sectors is issued and an error occurs on the third sector. The Sector Count Register contains 6 and the address is that of the third sector. 3.2.1.23 Write Sector(s) - 30H or 31H This command writes from 1 to 256 sectors as specified in the Sector Count Register. A sector count of zero requests 256 sectors. The transfer begins at the sector specified in the Sector Number Register. When this command is accepted, the ADC sets BSY, then sets DRQ and clears BSY, then waits for the host to fill the sector buffer with the data to be written. No interrupt is generated to start the first host transfer operation. No data should be transferred by the host until BSY has been cleared by the host. For multiple sectors, after the first sector of data is in the buffer, BSY will be set and DRQ will be cleared. After the next buffer is ready for data, BSY is cleared, DRQ is set and an interrupt is generated. When the final sector of data is transferred, BSY is set and DRQ is cleared. It will remain in this state until the command is completed at which time BSY is cleared and an interrupt is generated. If an error occurs during a write of more than one sector, writing 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 host may then read the command block to determine what error has occurred, and on which sector. 3.2.1.24 Write Verify - 3CH This command is similar to the Write Sector(s) command, except each sector is verified immediately after being written. This command has the same protocol as the Write Sector(s) command. Bit -> 76 54 32 10 Command (7) 30H or 31H 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) 3CH 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 |
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