User Manual

ATA Command Description
5-18 CompactFlash
®
Memory Card Product Manual, Rev. 10.0 © 2002 SANDISK CORPORATION
5.1.21. Standby Immediate—94H, E0H
Table 5-26. Standby Immediate
Bit -> 7 6 5 4 3 2 1 0
Command (7) E0H or 94H
C/D/H (6) X Drive X
Cyl High (5) X
Cyl Low (4) X
Sec Num (3) X
Sec Cnt (2) X
Feature (1) X
This command causes the CompactFlash Memory Card to set BSY, enter the Sleep mode (which corresponds to the
ATA “Standby” Mode), clear BSY and return the interrupt immediately. Recovery from sleep mode is accomplished
by simply issuing another command (a reset is not required).
5.1.22. Translate Sector—87H
Table 5-27. Translate Sector
Bit -> 7 6 5 4 3 2 1 0
Command (7) 87H
C/D/H (6) 1 LBA 1 Drive Head (LBA 27-24)
Cyl High (5) Cylinder High (LBA 23-16)
Cyl Low (4) Cylinder Low (LBA 15-8)
Sec Num (3) Sector Number (LBA 7-0)
Sec Cnt (2) X
Feature (1) X
When this command is issued, the controller responds with a 512-byte buffer of information on the desired cylinder,
head and sector with the actual Logical Address. Table 5-28 represents the information in the buffer. Please note that
this command is unique to the SanDisk CompactFlash Memory Card.
Table 5-28. Translate Sector Information
Address Information
00 Head
01-02 Cylinder
03 Sector
04-07 LBA
08 Chip
09-0A Block
0B Page
0C-1FF Reserved