SMC032BFY6 datasheet(56/91 Pages) STMICROELECTRONICS

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CF-ATA command description

SMCxxxBF

56/91

10.1

Check Power Mode (98h or E5h)

This command checks the power mode.

Issuing the command while the Card is in Standby mode, is about to enter Standby, or is

exiting Standby, the command will set BSY, set the Sector Count Register to 00h, clear BSY

and generate an interrupt.

Issuing the command when the Card is in Idle mode will set BSY, set the Sector Count

Table 49 defines the Byte sequence of the Check Power Mode command.

Stand By

E2h or 96h

Stand By Immediate

E0h or 94h

Translate Sector

87h

Wear Level

F5h

Write Buffer

E8h

2Write DMA

Write Multiple

C5h

Write Multiple w/o Erase

CDh

Write Sector(s)

30h or 31h

Write Sector(s) w/o Erase

38h

Write Verify

3Ch

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 Compact Flash Memory Card and head parameters are used.

D - only the Compact Flash Memory Card parameter is valid and not the head parameter

C - the register contains command specific data (see command descriptors for use).

Table 48.

CF-ATA Command Set(1) (continued)

Class

Command

Code

LBA

Table 49.

Check Power Mode

Bit

432

Command (7)

98h or E5h

C/D/H (6)

Drive

Cyl High (5)

Cyl Low (4)

Sect Num (3)

Sect Cnt (2)

Feature (1)

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