SDCFJ-1024-388 SanDisk, SDCFJ-1024-388 Datasheet - Page 68

• 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

5.1.12. Read Sector(s)—20H, 21H
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. When this command is issued and
after each sector of data (except the last one) has been read by the host, the CompactFlash Memory Card sets BSY,
puts the sector of data in the buffer, sets DRQ, clears BSY, and generates an interrupt. The host then reads the 512
bytes of data from the buffer.
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.
5.1.13. Read Verify Sector(s)—40H, 41H
This command is identical to the Read Sectors command, except that DRQ is never set and no data is transferred to
the host. When the command is accepted, the CompactFlash Memory Card sets BSY.
When the requested sectors have been verified, the CompactFlash Memory Card clears BSY and generates an
interrupt. Upon command completion, the Command Block Registers contain the cylinder, head, and sector number
of the last sector verified.
If an error occurs, the verify terminates at the sector where the error occurs. The Command Block Registers contain
the cylinder, head and sector number of the sector where the error occurred. The Sector Count Register contains the
number of sectors not yet verified.
CompactFlash
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 ->
Memory Card Product Manual, Rev. 11.0 ©2006 SanDisk Corporation
7
1
7
1
LBA
LBA
6
6
Table 5-20. Read Verify Sectors
Table 5-19. Read Sectors
5
1
5
1
Cylinder High (LBA 23-16)
Cylinder High (LBA 23-16)
Sector Number (LBA 7-0)
Sector Number (LBA 7-0)
Cylinder Low (LBA 15-8)
Cylinder Low (LBA 15-8)
Drive
Drive
4
4
Sector Count
Sector Count
20H or 21H
40H or 41H
X
X
3
3
Head (LBA 27-24)
Head (LBA 27-24)
2
2
1
1
ATA Command Description
0
0
5-15