Datasheet

Travelstar 80GN Hard Disk Drive Specification

178

13.41 Write Buffer (E8h)

Table 124: Write Buffer (E8h)

The Write Buffer command transfers a sector of data from the host to the sector buffer of the device. The sectors of

data are transferred through the Data Register 16 bits at a time.

The Read Buffer and Write Buffer commands are synchronized such that sequential Write Buffer and Read Buffer

commands access the same 512 byte within the buffer.

Command Block Output Registers Command Block Input Registers

Data - - - - - - - - Data - - - - - - - -

Feature - - - - - - - - Error see below

Sector Count - - - - - - - - Sector Count - - - - - - - -

LBA Low - - - - - - - - LBA Low - - - - - - - -

LBA Mid - - - - - - - - LBA Mid - - - - - - - -

LBA High - - - - - - - - LBA High - - - - - - - -

Device 1 - 1 D - - - - Device - - - - - - - -

Command 1 1 1 0 1 0 0 0 Status see below

Error Register Status Register

7654321 0 76543 21 0

CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR

00000V0 0 0V0-- 0- V