Hitachi HTS541040G9AT00 Specifications - Page 156

Read Sectors EXT 24h

Page 156 highlights

13.22 Read Sector(s) EXT (24h) Table 97: Read Sector(s) EXT Command (24h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Low Data High Current Feature Previous Sector Count Current Previous V V V V V V V V V V V V V V V V Current LBA Low Previous V V V V V V V V V V V V V V V V Current LBA Mid Previous V V V V V V V V V V V V V V V V Current LBA High Previous V V V V V V V V V V V V V V V V Device 1 1 1 D - - - - Command 0 0 1 0 0 1 0 0 76 CRC UNC 0V Error Register 54 3 2 1 0 0 IDN 0 ABT T0N AMN 0V 0 V 0 V Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Low Data High Error see below Sector Count LBA Low LBA Mid LBA High Device Status HOB=0 HOB=1 HOB=0 HOB=1 HOB=0 HOB=1 HOB=0 HOB=1 V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V See below ... Status Register 7 654 3 2 1 0 BSY RDY DF DSC DRQ COR IDX ERR 0 V0V - 0 - V 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 This indicates the number of sectors to be transferred low order, bits (7-0) Sector Count Previous This indicates the number of sectors to be transferred high order, bits (15-8). If 0000h in the Sector Count register is specified, 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) Travelstar 5K100 Hard Disk Drive Specification 142

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Travelstar 5K100 Hard Disk Drive Specification
142
13.22
Read Sector(s) EXT (24h)
Table 97: 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
This indicates the number of sectors to be transferred low order, bits (7-0)
Sector Count Previous
This indicates the number of sectors to be transferred high order, bits (15-8).
If 0000h in
the Sector Count register is specified, 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)
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
- - - - - - - -
Feature
Current
- - - - - - - -
Error
see below
Previous
- - - - - - - -
Sector
Count
Current
V V V V V V V V
Sector
Count
HOB=0
- - - - - - - -
Previous
V V V V V V V V
HOB=1
- - - - - - - -
LBA Low
Current
V V V V V V V V
LBA Low
HOB=0
V V V V V V V V
Previous
V V V V V V V V
HOB=1
V V V V V V V V
LBA Mid
Current
V V V V V V V V
LBA Mid
HOB=0
V V V V V V V V
Previous
V V V V V V V V
HOB=1
V V V V V V V V
LBA High
Current
V V V V V V V V
LBA High
HOB=0
V V V V V V V V
Previous
V V V V V V V V
HOB=1
V V V V V V V V
Device
1 1 1 D - - - -
Device
V - - - - - - -
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
V
0
V
0
V
-
0
-
V