5K320 SATA OEM Specification
123
14.23 Read Sector(s) Ext (24h)
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 Low - - - - -
- - -
Data Low -
- - - - - - -
Data High - - - - -
- - -
Data High -
- - - - - - -
Current - - - - -
- - -
Error ...See Below... Feature
Previous - - - - -
- - -
Current V
V
V
V
V
V
V
V
HOB=0
-
- - - - - - - Sector Count
Previous V
V
V
V
V
V
V
V
Sector Count
HOB=1
-
- - - - - - -
Current V
V
V
V
V
V
V
V
HOB=0
V
V
V
V
V
V
V
V
LBA Low
Previous V
V
V
V
V
V
V
V
LBA Low
HOB=1
V
V
V
V
V
V
V
V
Current V
V
V
V
V
V
V
V
HOB=0
V
V
V
V
V
V
V
V
LBA Mid
Previous V
V
V
V
V
V
V
V
LBA Mid
HOB=1
V
V
V
V
V
V
V
V
Current V
V
V
V
V
V
V
V
HOB=0
V
V
V
V
V
V
V
V
LBA High
Previous V
V
V
V
V
V
V
V
LBA High
HOB=1
V
V
V
V
V
V
V
V
Device - 1
- - -
- - -
Device -
- - - - - - -
Command 0
0
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 AMN
BSY
RDY
DF
DSC
DRQ
COR
IDX ERR
0 V 0 V 0 V 0 0
0 V 0 V - 0 0 V
Table 89 Read Sector(s) Ext Command (24h)
The Read Sector(s) Ext command reads from 1 to 65,536 sectors of data from disk media, then
transfers the data from the device to the host.
The sectors are transferred through the Data Register 16 bits at a time.
If an uncorrectable error occurs, the read will be terminated at the failing sector.
Output Parameters To The Device
Sector Count Current The number of sectors to be transferred low order, bits (7:0).
Sector Count Previous The number of sectors to be transferred high order, bits (15:8). If 0000h in the Sector
Count register is specified, then 65,536 sectors will be transferred.
LBA Low Current LBA (7:0)
LBA Low Previous LBA (31:24)
LBA Mid Current LBA (15:8)
LBA Mid Previous LBA (39:32)
LBA High Current LBA (23:16)
LBA High Previous LBA (47:40)
Input Parameters From The Device
LBA Low (HOB=0) LBA (7:0) of the address of the first unrecoverable error.
LBA Low (HOB=1) LBA (31:24)of the address of the first unrecoverable error.
LBA Mid (HOB=0) LBA (15:8)of the address of the first unrecoverable error.
LBA Mid (HOB=1) LBA (39:32)of the address of the first unrecoverable error.
LBA High (HOB=0) LBA (23:16)of the address of the first unrecoverable error.
LBA High (HOB=1) LBA (47:40)of the address of the first unrecoverable error.
