
Data Sheet
CompactFlash Card
SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256
43
2001 Silicon Storage Technology, Inc.
S71125-03-000
9/01
375
3.2.1.5.15 Capabilities
Bit 13: Standby Timer
Bit 11: IORDY Support
Bit 9: LBA support
Bit 8: DMA Support
Set to 0, forces sleep mode when host is inactive.
Set to 0, indicates that this device may support IORDY operation.
Set to 1, SST’s CompactFlash supports LBA mode addressing.
This bit is set to 0. DMA mode is not supported.
3.2.1.5.16 PIO Data Transfer Cycle Timing Mode
This field defines the mode for PIO data transfer.
3.2.1.5.17 Translation Parameters Valid
If bit 0 is 1, it indicates that words 54 to 58 are valid and reflect the current number of cylinders, heads
and sectors. If bit 1 is 1, it indicates that words 64 to 70 are valid to support PIO Mode-4.
3.2.1.5.18 Current Number of Cylinders, Heads, Sectors/Track
These fields contains the current number of user addressable Cylinders, Heads, and Sectors/Track in
the current translation mode.
3.2.1.5.19 Current Capacity
This field contains the product of the current cylinders times heads times sectors.
3.2.1.5.20 Multiple Sector Setting
This field contains a validity flag in the Odd Byte and the current number of sectors that can be
transferred per interrupt for R/W Multiple in the Even Byte. The Odd Byte is always 01H which indicates
that the Even Byte is always valid.
The Even Byte value depends on the value set by the Set Multiple command. The Even Byte of this
word by default contains a 00H which indicates that R/W Multiple commands are not valid.
3.2.1.5.21 Advanced PIO Data Transfer Mode
CompactFlash supports up to PIO Mode-4.
3.2.1.5.22 Minimum PIO Transfer Cycle Time Without Flow Control
The CompactFlash minimum cycle time is 120 ns.
3.2.1.5.23 Minimum PIO Transfer Cycle Time With IORDY
The CompactFlash minimum cycle time is 120 ns, e.g., PIO Mode-4.
3.2.1.5.24 Total Sectors Addressable in LBA Mode
This field contains the number of sectors addressable for the CompactFlash card in LBA mode only.