IBM IC35L020 Hard Drive Specifications - Page 146

Read Native Max Address F8h

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15.16 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 Error Register 76543210 CRC UNC 0 IDN 0 ABT T0N AMN 00000V00 Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 V 0 - - 0 -V Figure 94. Read Native Max LBA/CYL (F8h) This command returns the native max LBA/CYL of the drive which is not effected by Set Max Address command. Input parameters from the device Sector Number In LBA mode this register contains native max LBA bits 0-7. (L=1) In CHS mode this register contains native max sector number. (L=0) Cylinder High/Low In LBA mode this register contains native max LBA bits 8-15 (Low), 16-23 (High). (L=1) In CHS mode this register contains native max cylinder number. (L=0) H In LBA mode this register contains native max LBA bits 24-27. (L=1) In CHS mode this register contains native max head number. (L=0) Deskstar 60 GXP Hard disk drive specification 132

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15.16 Read Native Max Address (F8h)
see below
Status
1 1 1 1 1 0 0 0
Command
- - - - H H H H
Device/Head
1 L 1 D - - - -
Device/Head
V V V V V V V V
Cylinder High
- - - - - - - -
Cylinder High
V V V V V V V V
Cylinder Low
- - - - - - - -
Cylinder Low
V V V V V V V V
Sector Number
- - - - - - - -
Sector Number
- - - - - - - -
Sector Count
- - - - - - - -
Sector Count
see below
Error
- - - - - - - -
Feature
- - - - - - - -
Data
- - - - - - - -
Data
7 6 5 4 3 2 1 0
Register
7 6 5 4 3 2 1 0
Register
Command Block Input
Registers
Command Block Output
Registers
V
–
0
–
–
0
V
0
0
0
V
0
0
0
0
0
ERR
IDX
COR
DRQ
DSC
DF
RDY
BSY
AMN
T0N
ABT
0
IDN
0
UNC
CRC
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Status Register
Error Register
Figure 94.
Read Native Max LBA/CYL (F8h)
This command returns the native max LBA/CYL of the drive which is not effected by Set Max Address
command.
Input parameters from the device
Sector Number
In LBA mode this register contains native max LBA bits 0–7. (L=1)
In CHS mode this register contains native max sector number. (L=0)
Cylinder High/Low
In LBA mode this register contains native max LBA bits 8–15 (Low),
16–23 (High). (L=1)
In CHS mode this register contains native max cylinder number. (L=0)
H
In LBA mode this register contains native max LBA bits 24–27. (L=1)
In CHS mode this register contains native max head number. (L=0)
Deskstar
60 GXP Hard disk drive specification
132