13.16 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 101. 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. Even if the Address Offset mode is enabled, the native max LBA/CYL is returned.
Output parameters to the device
L
LBA mode. This indicates the addressing mode. L = 0 specifies CHS mode and L
= 1 specifies the LBA addressing mode.
D
This is the device number bit. Indicates that the device number bit of the
Device/Head Register should be specified. D = 0 selects the master device and D
= 1 selects the slave device.
-
Indicates that the bit is not used.
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)
Travelstar 60GH & 40GN hard disk drive specifications
141
Summary of Contents for IC25N040ATCS04 - Travelstar 40 GB Hard Drive
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