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HB288800A5 Datasheet(PDF) 37 Page - Hitachi Semiconductor |
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HB288800A5 Datasheet(HTML) 37 Page - Hitachi Semiconductor |
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37 / 66 page  HB288800/640/448/320/256/192/160/128/096/064/032A5 37 5. Sector number register: This register contains the starting sector number which is started by following sector transfer command. bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 Sector number byte 6. Cylinder low register: This register contains the low 8-bit of the starting cylinder address which is started by following sector transfer command. bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 Cylinder low byte 7. Cylinder high register: This register contains the high 8-bit of the starting cylinder address which is started by following sector transfer command. bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 Cylinder high byte 8. Drive head register: This register is used for selecting the Drive number and Head number for the following command. bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 1 LBA 1 DRV Head number bit Name Function 7 1 This bit is set to "1". 6 LBA LBA is a flag to select either Cylinder / Head / Sector (CHS) or Logical Block Address (LBA) mode. When LBA=0, CHS mode is selected. When LBA=1, LBA mode is selected. In LBA mode, the Logical Block Address is interrupted as follows: LBA07-LBA00 : Sector Number Register D7-D0. LBA15-LBA08 : Cylinder Low Register D7-D0. LBA23-LBA16 : Cylinder High Register D7-D0. LBA27-LBA24 : Drive / Head Register bits HS3-HS0. 5 1 This bit is set to "1". 4 DRV (DRiVe select) This bit is used for selecting the Master (Card 0) and Slave (Card 1) in Master/Slave organization. The card is set to be Card 0 or 1 by using DRV# of the Socket and Copy register. 3 to 0 Head number This bit is used for selecting the Head number for the following command. Bit 3 is MSB. |
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