Set Max Address Ext (37H); Table 111. Set Max Address Ext Command (37H) - Hitachi 7K100 - Travelstar - Hard Drive Specifications

13.36 Set Max ADDRESS EXT (37h)

Table 111: Set Max ADDRESS EXT Command (37h)
Command Block Output Registers
Register
Data Low
Data High
Current
Feature
Previous
Current
Sector
Count
Previous
Current
LBA Low
Previous
Current
LBA Mid
Previous
Current
LBA High
Previous
Device
Command
Error Register
7 6 5
CRC UNC 0
0 0 0
This command is immediately preceded by a Read Native Max Address Ext command.
This command overwrites the maximum number of Address of HDD in a range of actual device capacity. Once
device receives this command, all accesses beyond that Address are rejected with setting ABORT bit in status reg-
ister.
When the address requested is greater than 268,435,455, words (103:100) shall be modified to reflect the requested
value, but words (61:60) shall not modified. When the address requested is equal to or less than 268,435,455,
words (103:100) shall be modified to reflect the requested value, and words (61:60) shall also be modified.
If this command is not supported, the maximum value to be set exceeds the capacity of the device, a host protected
area has been established by a Set Max Address command, the command is not immediately preceded by a Read
Native Max Address Ext command, or the device is in the Set Max Locked or Set Max Frozen state, the device
shall return command aborted.
If the device in Address Offset mode receives this command with the nonvolatile option, the device returns aborted
error to the host.
The device returns the command aborted for a second non-volatile Set Max Address Ext command until next
power on or hardware reset.
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - B
- - - - - - - -
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
- 1 - D - - - -
0 0 1 1 0 1 1 1
4 3 2 1
IDN 0 ABT T0N AMN
0 0 V 0
Travelstar 7K100 Hard Disk Drive Specification
Command Block Input Registers
Register
Data Low
Data High
Error
HOB=0
Sector
Count
HOB=1
HOB=0
LBA Low
HOB=1
HOB=0
LBA Mid
HOB=1
HOB=0
LBA High
HOB=1
Device
Status
0 7 6 5
BSY RDY DF DSC DRQ
0 0 V 0
159
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
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
4 3 2 1
COR IDX
- - 0
0
ERR
V