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7K200 SATA OEM Specification

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14.42 Write Buffer (E8h)

Command Block Output Registers

Command Block Input Registers

7 6 5 4 3 2 1 0 Register

7 6 5 4 3 2 1 0

Data

- - - - -

- Data

- - - - - -

Feature

- - - - -

- Error

...See

Below...

Sector

Count

- - - - -

- Sector

Count

- - - - - -

LBA

Low

- - - - -

- LBA

Low

- - - - - -

LBA

Mid

- - - - -

- LBA

Mid

- - - - - -

LBA

High

- - - - -

- LBA

High

- - - - - -

Device

- - - - -

- Device

- - - - - -

Command

1 1 1 0 1 0 0 0 Status

...See

Below...

Error Register

Status Register

7 6 5 4 3 2 1 0

CRC UNC 0

IDN

0 ABT T0N

BSY RDY

DF DSC DRQ

COR IDX

ERR

0 0 0 0 0 V 0 0

0 V 0 - - 0 0 V

Table 126 Write Buffer Command (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.