SST48CF008 datasheet(52/60 Pages) SST

52 / 60 page

Data Sheet

CompactFlash Card

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

S71125-03-000

9/01

375

3.2.1.24 Write Buffer - E8H

The Write Buffer command enables the host to overwrite contents of the CompactFlash Card’s sector

buffer with any data pattern desired. This command has the same protocol as the Write Sector(s)

command and transfers 512 Bytes.

3.2.1.25 Write Long Sector - 32H or 33H

This command is similar to the Write Sector(s) command except that it writes 516 Bytes instead of 512

Bytes. Only single sector Write Long operations are supported. The transfer consists of 512 Bytes of

data transferred in Word-Mode followed by 4 Bytes of ECC transferred in Byte-Mode. Because of the

unique nature of the solid-state CompactFlash card, the 4 Bytes of ECC transferred by the host may be

used by the CompactFlash card. The CompactFlash card may discard these 4 Bytes and write the

sector with valid ECC data. This command has the same protocol as the Write Sector(s) command.

Use of this command is not recommended.

Bit ->

Command (7)

E8H

C/D/H (6)

Drive

Flag

Cyl High (5)

Cyl Low (4)

Sec Num (3)

Sec Cnt (2)

Completion Status

Feature (1)

Bit ->

Command (7)

32H or 33H

C/D/H (6)

LBA

Drive

Head (LBA 27-24)

Cyl High (5)

Cylinder High (LBA 23-16)

Cyl Low (4)

Cylinder Low (LBA 15-8)

Sec Num (3)

Sector Number (LBA 7-0)

Sec Cnt (2)

Feature (1)

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