Manual

220 Series Commercial Grade CF Product Manual v2.0Cactus Technologies

This register contains additional information about the source of an error when an error is

indicated in bit 0 of the Status register. The bits are dened as follows:

This register provides information regarding features of the CF card that the host can utilize.

This register is also accessed on data bits D15-D8 during a write operation to Oset 0 with -CE2

low and -CE1 high (except in True IDE Mode operation).

This register contains the number of sectors of data requested to be transferred on a read

or write operation between the host and the CompactFlash Memory Card. If the value in

this register is zero, a count of 256 sectors is specied. If the command was successful, this

number of sectors that need to be transferred in order to complete the request.

This register contains the starting sector number or bits 7-0 of the Logical Block Address (LBA)

for any CompactFlash Memory Card data access for the subsequent command.

This register is also accessed on data bits D15-D8 during a write operation to oset 0 with -CE2

low and -CE1 high.

4.5.2. Error Register

(Address—1F1[171]; Oset 1, 0Dh Read Only)

4.5.3. Feature Register

(Address—1F1[171]; Oset 1, 0Dh Write Only)

4.5.4. Sector Count Register

(Address—1F2[172]; Oset 2)

4.5.5. Sector Number

(LBA 7-0) Register (Address—1F3[173]; Oset 3)

D7 D6 D5 D4 D3 D2 D1 D0

BBK UNC 0 IDNF 0 ABRT 0 AMNF

Bit 7 (BBK) This bit is set when a Bad Block is detected.

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 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.