IBM DJSA-210 Hard Drive Specifications - Page 148

Read Native Max ADDRESS F8h, Indicates that the bit is not used.

Page 148 highlights

13.16 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 Error Register 76543210 CRC UNC 0 IDN 0 ABT T0N AMN 00000V00 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 Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 V 0 - - 0 -V Figure 89. Read Native Max ADDRESS (F8h) This command returns the native max LBA/CYL of HDD which is not effected by the Set Max ADDRESS command. Even if the Address Offset mode is enabled, the native max LBA/CYL of HDD is returned. Output Parameters To The Device L LBA mode. This indicates the addressing mode. An 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) Travelstar 32GH/30GT/20GN hard disk drive specifications 134

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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 89. Read Native Max ADDRESS (F8h)
This command returns the native max LBA/CYL of HDD which is not effected by the Set Max ADDRESS
command. Even if the Address Offset mode is enabled, the native max LBA/CYL of HDD is returned.
Output Parameters To The Device
L
LBA mode. This indicates the addressing mode. An 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)
Travelstar 32GH/30GT/20GN hard disk drive specifications
134