Hitachi T7K250 Specifications - Page 211
Set Max Address Ext 37h
UPC - 000062373678
View all Hitachi T7K250 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 211 highlights
12.41 Set Max Address Ext (37h) Table 124: 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 T7K250 Hard Disk Drive Specification 197