5K320 SATA OEM Specification
162
14.43 Write Buffer (E8h)
Command Block Output Registers
Command Block Input Registers
Register 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
7 6 5 4 3 2 1 0
CRC
UNC
0 IDN 0 ABT
T0N AM
N
BSY
RDY
DF DSC
DRQ
COR
IDX
ERR
0 0 0 0 0 V 0 0
0 V 0 - - 0 0 V
Table 127 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.
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