SDCFJ-1024-388 SanDisk, SDCFJ-1024-388 Datasheet - Page 67

• 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

ATA Command Description
If the Read Multiple command is attempted before the Set Multiple Mode command has been executed or when
Read Multiple commands are disabled, the Read Multiple operation is rejected with an Aborted Command error.
Disk errors encountered during Read Multiple commands are posted at the beginning of the block or partial block
transfer, but DRQ is still set and the data transfer will take place as it normally would, including transfer of
corrupted data, if any.
Interrupts are generated when DRQ is set at the beginning of each block or partial block. The error reporting is the
same as that on a Read Sector(s) Command. This command reads from 1 to 256 sectors as specified in the Sector
Count register. A sector count of 0 requests 256 sectors. The transfer begins at the sector specified in the Sector
Number Register.
At command completion, the Command Block Registers contain the cylinder, head and sector number of the last
sector read.
If an error occurs, the read terminates at the sector where the error occurred. The Command Block Registers contain
the cylinder, head and sector number of the sector where the error occurred. The flawed data is pending in the sector
buffer.
Subsequent blocks or partial blocks are transferred only if the error was a correctable data error. All other errors
cause the command to stop after transfer of the block that contained the error.
5.1.11. Read Long Sector—22H, 23H
The Read Long command performs similarly to the Read Sector(s) command except that it returns 516 bytes of data
instead of 512 bytes. During a Read Long command, the CompactFlash Memory Card does not check the ECC bytes
to determine if there has been a data error. Only single sector read long operations are supported. The transfer
consists of 512 bytes of data transferred in word mode followed by 4 bytes of random data transferred in byte mode.
Random data is returned instead of ECC bytes because of the nature of the ECC system used. This command has the
same protocol as the Read Sector(s) command.
5-14
Command (7)
Sec Num (3)
Cyl High (5)
Cyl Low (4)
Sec Cnt (2)
Feature (1)
C/D/H (6)
Bit ->
7
1
LBA
6
CompactFlash
Table 5-18. Read Long Sector
5
1
Cylinder High (LBA 23-16)
Sector Number (LBA 7-0)
Cylinder Low (LBA 15-8)
®
Memory Card Product Manual, Rev. 11.0 ©2006 SanDisk Corporation
Drive
4
22H or 23H
X
X
3
Head (LBA 27-24)
2
1
0