SDCFJ-1024-388 SanDisk, SDCFJ-1024-388 Datasheet - Page 66

• 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

5.1.9. Read Buffer—E4H
The Read Buffer command enables the host to read the current contents of the CompactFlash Memory Card’s sector
buffer. This command has the same protocol as the Read Sector(s) command.
5.1.10. Read Multiple—C4H
NOTE: The current revision of the CompactFlash Memory Card only supports a block count of 1 as indicated in
The Read Multiple command performs similarly to the Read Sectors command. Interrupts are not generated on
every sector, but on the transfer of a block, which contains the number of sectors defined by a Set Multiple,
command.
Command execution is identical to the Read Sectors operation except that the number of sectors defined by a 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 Read Multiple command. When the Read 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 block count, as many full blocks as
possible are transferred, followed by a final, partial block transfer. The partial block transfer is for n sectors, where:
CompactFlash
n = (sector count)—modulo (block count).
Command (7)
Command (7)
Sec Num (3)
Sec Num (3)
Cyl High (5)
Cyl High (5)
Cyl Low (4)
Cyl Low (4)
the Identify Drive Information command. This command is provided for compatibility with future products
that may support a larger block count.
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
7
1
LBA
6
X
6
Table 5-17. Read Multiple
Table 5-16. Read Buffer
5
5
1
Cylinder High (LBA 23-16)
Sector Number (LBA 7-0)
Cylinder Low (LBA 15-8)
Drive
Drive
4
4
Sector Count
E4H
C4H
X
X
X
X
X
X
3
3
Head (LBA 27-24)
2
2
X
1
1
ATA Command Description
0
0
5-13