HGST Travelstar 7K500 BE, 320GB 0A79103 User Manual
Product codes
0A79103
7K500 OEM Specification
Page 104 of 176
14.13
14.13
14.13
14.13 Read Buffer (E4h)
Read Buffer (E4h)
Read Buffer (E4h)
Read Buffer (E4h)
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 0 1 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 68 Read Buffer Command (E4h)
The Read Buffer command transfers a sector of data from the sector buffer of device to the host.
The sector is transferred through the Data Register 16 bits at a time.
The sector transferred will be from the same part of the buffer written to by the last Write Buffer
command. The contents of the sector may be different if any reads or writes have occurred since the
Write Buffer command was issued.
command. The contents of the sector may be different if any reads or writes have occurred since the
Write Buffer command was issued.