HB288256C5 Datasheet, PDF (37/67 Pages) Hitachi Semiconductor – CompactFlash™

HB288256/192/160/128/096/064/032C5
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
Note: DRV: Drive number
Head number: Head number
bit Name
71
6 LBA
51
4 DRV (DRiVe select)
3 to 0 Head number
Function
This bit is set to "1".
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.
This bit is set to "1".
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.
This bit is used for selecting the Head number for the following
command. Bit 3 is MSB.
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