SST48CF024 datasheet(44/60 Pages) SST

44 / 60 page

Data Sheet

CompactFlash Card

SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256

S71125-03-000

9/01

375

3.2.1.6 Idle - 97H or E3H

This command causes the CompactFlash card to set BSY, enter the Idle mode, clear BSY and generate

an interrupt. If the sector count is non-zero, it is interpreted as a timer count with each count being 5

milliseconds and the automatic power down mode is enabled. If the sector count is zero, the automatic

power down mode is also enabled, the timer count is set to 3, with each count being 5 ms. Note that this

time base (5 msec) is different from the ATA specification.

3.2.1.7 Idle Immediate - 95H or E1H

This command causes the CompactFlash card to set BSY, enter the Idle mode, clear BSY and generate

an interrupt.

3.2.1.8 Initialize Drive Parameters - 91H

This command enables the host to set the number of sectors per track and the number of heads per

cylinder. Only the Sector Count and the Card/Drive/Head registers are used by this command.

Bit ->

Command (7)

97H or E3H

C/D/H (6)

XDrive

Cyl High (5)

Cyl Low (4)

Sec Num (3)

Sec Cnt (2)

Timer Count (5 msec increments)

Feature (1)

Bit ->

Command (7)

95H or E1H

C/D/H (6)

XDrive

Cyl High (5)

Cyl Low (4)

Sec Num (3)

Sec Cnt (2)

Timer Count (5 msec increments)

Feature (1)

Bit ->

Command (7)

91H

C/D/H (6)

Drive

Max Head (no. of heads-1)

Cyl High (5)

Cyl Low (4)

Sec Num (3)

Sec Cnt (2)

Number of Sectors

Feature (1)

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