Hitachi HDS728080PLAT20 Specifications - Page 208

Set Max Address Ext 37h

Page 208 highlights

12.39 Set Max Address Ext (37h) Table 141: Set Max Address Ext command (37h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Low Data High Current Feature Previous Sector Count Current Previous B Sector Number Current Previous V V V V V V V V V V V V V V V V Cylinder Current Low Previous V V V V V V V V V V V V V V V V Cylinder Current V V V V V V V V High Previous V V V V V V V V Device/Head - 1 - D - - - - Command 0 0 1 1 0 1 1 1 76 CRC UNC 00 Error Register 54 3 2 1 0 0 IDN 0 ABT T0N AMN 00 0 V 0 0 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Low Data High Error see below Sector Count HOB=0 HOB=1 Sector Number HOB=0 HOB=1 Cylinder HOB=0 Low HOB=1 Cylinder HOB=0 High HOB=1 Device/Head Status 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 7 654 3 2 1 0 BSY RDY DF DSC DRQ COR IDX ERR 0 V0- - 0 - V 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 the device receives this command, all accesses beyond that Address are rejected with setting ABORT bit in status register. 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 be 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. Deskstar 7K80 Hard Disk Drive Specification 204

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Deskstar 7K80 Hard Disk Drive Specification
204
12.39
Set Max Address Ext (37h)
Table 141: Set Max Address Ext command (37h)
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 the
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 be 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.
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 Low
- - - - - - - -
Data Low
- - - - - - - -
Data High
- - - - - - - -
Data High
- - - - - - - -
Feature
Current
- - - - - - - -
Error
see below
Previous
- - - - - - - -
Sector
Count
Current
- - - - - - - B
Sector
Count
HOB=0
- - - - - - - -
Previous
- - - - - - - -
HOB=1
- - - - - - - -
Sector
Number
Current
V V V V V V V V
Sector
Number
HOB=0
V V V V V V V V
Previous
V V V V V V V V
HOB=1
V V V V V V V V
Cylinder
Low
Current
V V V V V V V V
Cylinder
Low
HOB=0
V V V V V V V V
Previous
V V V V V V V V
HOB=1
V V V V V V V V
Cylinder
High
Current
V V V V V V V V
Cylinder
High
HOB=0
V V V V V V V V
Previous
V V V V V V V V
HOB=1
V V V V V V V V
Device/Head
- 1 - D - - - -
Device/Head
- - - - - - - -
Command
0 0 1 1 0 1 1 1
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