Word 53: Translation Parameters Valid; Words 54-56: Current Number Of Cylinders, Heads, Sectors/Track; Words 57- 58: Current Capacity; Word 59: Multiple Sector Setting - SanDisk CompactFlash Product Manual

Memory card

Hide thumbs Also See for CompactFlash:

Table of Contents

ATA Command Description

5.1.5.19. Word 53: Translation Parameters Valid

Bit 0 of this field is set, indicating that words 54 to 58 are valid and reflect the current number of cylinders, heads

and sectors. Bit 1 is also set, indicating values in words 64 through 70 are valid.

These fields contains the current number of user addressable Cylinders, Heads, and Sectors/Track in the current

translation mode.

This field contains the product of the current cylinders times heads times sectors.

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. The only other value returned by the

CompactFlash Memory Card in the even byte is a 01H value, which indicates that 1 sector per interrupt, can be

transferred in R/W Multiple mode.

This field contains the number of sectors addressable for the CompactFlash Memory Card in LBA mode only.

Bits 0 and 1 of this field are set to indicate support for PIO transfer modes 3 and 4, respectively.

This field indicates in nanoseconds, the minimum cycle time that, if used by the host, the CompactFlash Memory

Card guarantees data integrity during the cycle without utilization of flow control.

This field indicates in nanoseconds, the minimum cycle time the CompactFlash Memory Card supports while

performing data transfers using flow control.

5-8

CompactFlash

Table of Contents