SDCFJ-1024-388 SanDisk, SDCFJ-1024-388 Datasheet - Page 76

• Manufacturer Part Number: SDCFJ-1024-388
• Description: COMPACT FLASH 1GB
• Manufacturer: SanDisk
• Type: CompactFlashr

Specifications of SDCFJ-1024-388

• Memory Size: 1GB
• Memory Type: CompactFLASH
• Density: 1GByte
• Operating Supply Voltage (typ): 3.3/5V
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Package Type: Not Required
• Mounting: Socket
• Pin Count: 50
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 3.135/4.5V
• Operating Supply Voltage (max): 3.465/5.5V
• Programmable: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5.1.26. Write Multiple Command—C5H
NOTE: The current revision of the CompactFlash Memory Card only supports a block count of 1 as indicated in
This command is similar to the Write Sectors command. The CompactFlash Memory Card sets BSY within 400
nsec of accepting the command. Interrupts are not presented on each sector but on the transfer of a block that
contains the number of sectors defined by Set Multiple. Command execution is identical to the Write Sectors
operation except that the number of sectors defined by the Set Multiple command is transferred without intervening
interrupts.
DRQ qualification of the transfer is required only at the start of the data block, not on each sector. The block count
of sectors to be transferred without intervening interrupts is programmed by the Set Multiple Mode command, which
must be executed prior to the Write Multiple command.
When the Write Multiple command is issued, the Sector Count Register contains the number of sectors (not the
number of blocks or the block count) requested. If the number of requested sectors is not evenly 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:
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.
CompactFlash
the Identify Drive Command information. This command is provided for compatibility with future products
that may support a larger block count.
n = remainder (sector count/block count).
Command (7)
®
Sec Num (3)
Cyl High (5)
Cyl Low (4)
Sec Cnt (2)
Feature (1)
Memory Card Product Manual, Rev. 11.0 ©2006 SanDisk Corporation
C/D/H (6)
Bit ->
7
X
Table 5-36. Write Multiple Command
LBA
6
5
X
Drive
Sector Number
4
Cylinder High
Cylinder Low
Sector Count
C5H
X
3
2
Head
ATA Command Description
1
0
5-23