Hitachi HDS728080PLAT20 Specifications - Page 170

Read Native Max ADDRESS F8h

Page 170 highlights

12.21 Read Native Max ADDRESS (F8h) Table 115: Read Native Max ADDRESS (F8h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature Sector Count Sector Number Cylinder Low Cylinder High Device/Head 1 L 1 D - - - - Command 1 1 1 1 1 0 0 0 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count Sector Number V V V V V V V V Cylinder Low V V V V V V V V Cylinder High V V V V V V V V Device/Head - - - - H H H H Status see below 76 CRC UNC 00 Error Register 54 3 2 1 0 0 IDN 0 ABT T0N AMN 00 0 V 0 0 Status Register 7 654 3 2 1 0 BSY RDY DF DSC DRQ COR IDX ERR 0 V0- - 0 - V This command returns the native max LBA/CYL of the drive which is not effected by the Set Max ADDRESS command. If the 48-bit native max address is greater than 268,435,455, the Read Native Max Address command returns a value of 268,435,455. Input parameters from the device Sector Number In LBA mode this register contains the native max LBA bits 0-7. (L = 1) In CHS mode this register contains the native max sector number. (L = 0) Cylinder High/Low In LBA mode this register contains the native max LBA bits 8-15 (Low) and bits 16-23 (High). (L = 1) In CHS mode this register contains the native max cylinder number. (L = 0) H In LBA mode this register contains the native max LBA bits 24-27. (L = 1) In CHS mode this register contains the native maximum head number. (L = 0) Deskstar 7K80 Hard Disk Drive Specification 166

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Deskstar 7K80 Hard Disk Drive Specification
166
12.21
Read Native Max ADDRESS (F8h)
Table 115: Read Native Max ADDRESS (F8h)
This command returns the native max LBA/CYL of the drive which is not effected by the Set Max ADDRESS
command.
If the 48-bit native max address is greater than 268,435,455, the Read Native Max Address command returns a
value of 268,435,455.
Input parameters from the device
Sector Number
In LBA mode this register contains the native max LBA bits 0–7. (L = 1)
In CHS mode this register contains the native max sector number. (L = 0)
Cylinder High/Low
In LBA mode this register contains the native max LBA bits 8–15 (Low) and bits 16–23
(High). (L = 1)
In CHS mode this register contains the native max cylinder number. (L = 0)
H
In LBA mode this register contains the native max LBA bits 24–27. (L = 1) In CHS mode
this register contains the native maximum head number. (L = 0)
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
- - - - - - - -
Sector Number
- - - - - - - -
Sector Number
V V V V V V V V
Cylinder Low
- - - - - - - -
Cylinder Low
V V V V V V V V
Cylinder High
- - - - - - - -
Cylinder High
V V V V V V V V
Device/Head
1 L 1 D - - - -
Device/Head
- - - - H H H H
Command
1 1 1 1 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 AMN
BSY RDY DF DSC DRQ COR IDX ERR
0
0
0
0
0
V
0
0
0
V
0
-
-
0
-
V