SDCFH-1024-388 SanDisk, SDCFH-1024-388 Datasheet - Page 69

• Manufacturer Part Number: SDCFH-1024-388
• Description: COMPACT FLASH 1GB ULTRA II
• Manufacturer: SanDisk

Specifications of SDCFH-1024-388

• Memory Size: 1GB
• Memory Type: CompactFLASH
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2007 SanDisk Corporation
SanDisk CompactFlash Card OEM Product Manual
5.1.9
5.1.10
Read Buffer–E4H
The Read Buffer command enables the host to read the current contents of the card's sector
buffer. This command has the same protocol as the Read Sector(s) command.
Table 5-16
Read DMA Command–C8H, C9H
The Read DMA command in Table 5-17 executes in a similar manner to the READ
SECTOR(S) command except for the following:
•
•
•
During the DMA transfer phase of a Read DMA command, the device provides status of the
BSY bit or the DRQ bit until the command is completed.
Table 5-17
The host initializes the DMA channel prior to issuing the command.
Data transfers are qualified by DMARQ and are performed by the DMA channel.
The device issues only one interrupt per command to indicate that data transfer has termi ­
nated and status is available.
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
Read Buffer
Read DMA Command
7
7
1
LBA
X
6
6
5-15
5
5
1
Cylinder High (LBA 23-16)
Sector Number (LBA 7-0)
Cylinder Low (LBA 15-8)
Drive
Drive
Sector Count
C8H or C9H
4
4
E4H
X
X
X
X
X
X
3
3
Head (LBA 27-24)
ATA Command Description
2
2
X
Rev. 12.0, 02/07
1
1
0
0