AP-CF512ME3FR-NRJ Apacer, AP-CF512ME3FR-NRJ Datasheet - Page 38

• Manufacturer Part Number: AP-CF512ME3FR-NRJ
• Description: Memory Cards CFC 3 STD TMP 512MB COMPACT FLASH CARD
• Manufacturer: Apacer

Specifications of AP-CF512ME3FR-NRJ

• Rohs: yes
• Product: Compact Flash
• Memory Size: 512 MB
• Operating Supply Voltage: 3.3 V, 5 V
• Maximum Operating Temperature: + 70 C
• Dimensions: 42.8 mm x 36.4 mm x 3.3 mm
• Minimum Operating Temperature: 0 C

divisible by the sector/block, as many full blocks as possible are transferred, followed by a final, partial
block transfer. The partial block transfer is for n sectors, where: n = remainder (sector count/block count).
If the Write-Multiple command is attempted before the Set-Multiple-Mode command has been executed or
when Write-Multiple commands are disabled, the Write-Multiple operation will be rejected with an aborted
command error.
Errors encountered during Write-Multiple commands are posted after the attempted writes of the block or
partial block transferred. The Write command ends with the sector in error, even if it is in the middle of a
block. Subsequent blocks are not transferred in the event of an error. Interrupts are generated when DRQ
is set at the beginning of each block or partial block.
The Command Block registers contain the cylinder, head and sector number of the sector where the error
occurred and the Sector Count register contains the residual number of sectors that need to be
transferred for successful completion of the command, e.g. each block has 4 sectors, a request for 8
sectors is issued and an error occurs on the third sector. The Sector Count register contains 6 and the
address is that of the third sector.
6.1.29 Write-Multiple-Without-Erase – CDH
This command is similar to the Write-Multiple command with the exception that an implied Erase before
Write operation is not performed. The sectors should be pre-erased with the Erase-Sector(s) command
before this command is issued. If the sectors are not pre-erased with the Erase-Sector(s) command, a
normal Write-Multiple operation will occur.
6.1.30 Write-Sector(s) – 30H or 31H
This command writes from 1 to 256 sectors as specified in the Sector Count register. A sector count of
zero requests 256 sectors. The transfer begins at the sector specified in the Sector Number register.
When this command is accepted, the compact flash card sets BSY, then sets DRQ and clears BSY, then
waits for the host to fill the sector buffer with the data to be written. No interrupt is generated to start the
first host transfer operation. No data should be transferred by the host until BSY has been cleared by the
host. For multiple sectors, after the first sector of data is in the buffer, BSY will be set and DRQ will be
cleared. After the next buffer is ready for data, BSY is cleared, DRQ is set and an interrupt is generated.
When the final sector of data is transferred, BSY is set and DRQ is cleared. It will remain in this state until
the command is completed at which time BSY is cleared and an interrupt is generated. If an error occurs
during a write of more than one sector, writing terminates at the sector where the error occurs. The
© 2009 Apacer Technology Inc.
Command (7)
Command (7)
Sec Num (3)
Sec Num (3)
Cyl High (5)
Cyl High (5)
Cyl Low (4)
Cyl Low (4)
Sec Cnt (2)
Sec Cnt (2)
Feature (1)
Feature (1)
C/D/H (6)
C/D/H (6)
Bit ->
Bit ->
Value Added
Value Added
Value Added
Value Added
7
7
X
1
AP-CFxxxxE3XR-XXXXJ
6
6
LBA
LBA
Compact Flash Ⅲ Ⅲ Ⅲ Ⅲ series
5
5
X
1
37
Cylinder High (LBA 23-16)
Cylinder Low (LBA 15-89)
Sector Number (LBA 7-0)
Drive
Drive
4
4
Sector Number
Cylinder High
Sector Count
Sector Count
Cylinder Low
30H or 31H
CDH
X
X
3
3
Head (LBA 27-24)
2
2
Head
1
1
Rev. 1.6
0
0