Product manual

CompactFlash Memory Card Product Manual Preliminary

Table 6-1 ATA Command Set

Class COMMAND Code FR SC SN CY DH LBA

1 Check Power Mode E5h or 98h - - - - D -

1 Execute Drive Diagnostic 90h - - - - D -

1 Erase Sector(s) (Note 2) C0h - Y Y Y Y Y

2 Format Track 50h - Y - Y Y Y

1 Identify Drive ECh - - - - D -

1 Idle E3h or 97h - Y - - D -

1 Idle Immediate E1h or 95h - - - - D -

1 Initialize Drive Parameters 91h - Y - - Y -

1 Read Buffer E4h - - - - D -

1 Read Multiple C4h - Y Y Y Y Y

1 Read Long Sector 22h or 23h - - Y Y Y Y

1 Read Sector(s) 20h or 21h - Y Y Y Y Y

1 Read Verify Sector(s) 40h or 41h - Y Y Y Y Y

1 Recalibrate 1Xh - - - - D -

1 Request Sense (Note 1) 03h - - - - D -

1 Seek 7Xh - - Y Y Y Y

1 Set Features EFh Y - - - D -

1 Set Multiple Mode C6h - Y - - D -

1 Set Sleep Mode E6h or 99h - - - - D -

1 Stand By E2h or 96h - - - - D -

1 Stand By Immediate E0h or 94h - - - - D -

1 Translate Sector (Note 1) 87h - Y Y Y Y Y

1 Wear Level (Note 1) F5h - - - - Y -

2 Write Buffer E8h - - - - D -

2 Write Long Sector 32h or 33h - - Y Y Y Y

3 Write Multiple C5h - Y Y Y Y Y

3 Write Multiple w/o Erase (Note 2) CDh - Y Y Y Y Y

2 Write Sector(s) 30h or 31h - Y Y Y Y Y

2 Write Sector(s) w/o Erase

(Note 2)

38h - Y Y Y Y Y

2 Write Verify Sector(s) 3Ch - Y Y Y Y Y

Note 1: These commands are not standard PC Card ATA commands but provide additional functionality.

Note 2: These commands are not standard PC Card ATA commands and these features are no longer supported with the

introduction of 256 Mbit Flash Technology. If one of these commands is issued, the sectors will be erased but there

will be no net gain in write performance when using the Write Without Erase command.

Definitions: FR = Features Register, SC = Sector Count Register, SN = Sector Number Register, CY = Cylinder Registers, DH =

Card/Drive/Head Register, LBA = Logical Block Address Mode Supported (see command descriptions for use).

Y - The register contains a valid parameter for this command. For the Drive/Head Register Y means both the

CompactFlash Card and head parameters are used; D - only the CompactFlash Card parameter is valid and not the head

parameter.