TS256MBCF45I-D Transcend Information. Inc., TS256MBCF45I-D Datasheet - Page 48

• Manufacturer Part Number: TS256MBCF45I-D
• Description: Transcend Industrial Cf Card
• Manufacturer: Transcend Information. Inc.

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The following section describes the hardware registers used by the host software to issue commands to the
CompactFlash device. These registers are often collectively referred to as the “task file.”
a
a
a
2
2
2
CF-ATA Registers
n
n
n
8
8
8
s
The Data Register is a 16 bit register, and it is used to transfer data blocks between the CompactFlash
Storage Card data buffer and the Host. This register overlaps the Error Register.
Error Register (Address - 1F1h[171h]; Offset 1, 0Dh Read Only)
This register contains additional information about the source of an error when an error is indicated in bit 0
of the Status register.
This register is also accessed in PC Card Modes on data bits D15-D8 during a read operation to offset 0
with -CE2 low and -CE1 high.
Bit 7 (BBK/ICRC): this bit is set when a Bad Block is detected. This bit is also set when an interface CRC
error is detected in True IDE Ultra DMA modes of operation.
Bit 6 (UNC): this bit is set when an Uncorrectable Error is encountered.
Bit 5: this bit is 0.
Bit 4 (IDNF): the requested sector ID is in error or cannot be found.
Bit 3: this bit is 0.
Bit 2 (Abort) This bit is set if the command has been aborted because of a CompactFlash Storage Card
status condition: (Not Ready, Write Fault, etc.) or when an invalid command has been issued.
Bit 1 This bit is 0.
Bit 0 (AMNF) This bit is set in case of a general error.
s
M
s
M
Data Register (Address - 1F0h[170h];Offset 0,8,9)
M
c
c
c
B
B
B
e
e
e
n
n
n
~
~
~
d
d
d
8
8
8
G
G
G
I
I
B
I
B
B
n
n
n
d
d
d
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)
u
u
u
s
s
s
t
t
t
r
r
r
i
i
i
a
a
a
l
l
l
C
C
C
F
F
F
C
C
C
a
a
a
r
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