thncf032mbai TOSHIBA Semiconductor CORPORATION, thncf032mbai Datasheet - Page 27

• Manufacturer Part Number: thncf032mbai
• Description: Thncfxxxmba/bai Series Compactflash Card Flash Technology Based With Interface Flash Memory Card.
• Manufacturer: TOSHIBA Semiconductor CORPORATION

12. Device control register
13. Drive Address register
ATA soft reset to the card.
compatibility with the AT disk drive interface. It is recommended that this register is not mapped into the
host’s I/O space because of potential conflicts on bit7.
7 to 4
5 to 2
This register is write only register, and it is used for controlling the card interrupt request and issuing an
This register is read only register, and it is used for confirming the drive status. This register is provides for
bit
bit
3
2
1
0
7
6
1
0
bit7
bit7
X
X
nHS3 to nHS0 (Head Select3-0)
SRST(Software ReSeT)
nIEN(Interrupt Enable)
nWTG (WriTing Gate)
nDS1 (Idrive Select1)
nDS0 (Idrive Select0)
nWTG
bit6
bit6
X
Name
Name
X
X
1
0
nHS3
bit5
bit5
X
Don’t care
This bit is set to “1”.
This bit is set to “1” in order to force the card to perform Task File Reset operation.
This does not change the Card Configuration registers as a Hardware Reset does.
The card remains in Reset until this bit is reset to “0”.
This bit is used for enabling −IREQ. When this bit is set to “0”, −IREQ is enabled.
When this bit is set to “1”, −IREQ is disabled.
This bit is set to “0”.
This bit remains tri-state when host read access.
This bit is set as 0
These bits are the negative value of Head Select bits (bit3 to 0) in Drive/Head
register.
This bit is 0 when drive 1 is active and selected.
This bit is 0 when drive 0 is active and selected.
Preliminary
nHS2
bit4
bit4
X
nHS1
bit3
bit3
1
THNCFxxxMBA/BAI Series
Function
Function
SRST
nHS0
bit2
bit2
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nDS1
nIEN
bit1
bit1
nDS0
bit0
bit0
0