
SanDisk Industrial Grade CompactFlash 5000 Product Manual
© 2007 SanDisk® Corporation 56 July 2007
5.1.6
Idle–97H, E3H
This command causes the card to set BSY, enter the Idle (Read) mode, clear
BSY and generate an interrupt. If the sector count is not 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 disabled.
Note: This time base (5 msec) is different from the ATA specification.
Table 48: Idle
5.1.7
Idle Immediate–95H, E1H
This command causes the card to set BSY, enter the Idle (Read) mode, clear
BSY and generate an interrupt.
Table 49: Idle Immediate
5.1.8
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 This command uses only the Sector Count
and the Card/Drive/Head registers.
Note: SanDisk does not recommend using this command in any system
because DOS determines the offset to the Boot Record based on the
number of heads and sectors per track. If a CompactFlash Memory Card
is "Formatted" with one head and sector per track value, the same card
will not operate correctly with DOS configured with another head and
sector per track value.
Kommentare zu diesen Handbüchern