IBM IC35L040AVVN07-0 Hard Drive Specifications - Page 124

Word 0 1 2 3-6 7 8-254 255 Content 0001h Data Structure revision Multiword DMA modes supported 15-3 Reserved 2 1 = Multiword DMA mode 2 and below are supported 1 1 = Multiword DMA mode 1 and below are supported 0 1 = Multiword DMA mode 0 is supported Ultra DMA modes supported 15-6 Reserved 5 1 = Ultra DMA mode 5 and below are supported 4 1 = Ultra DMA mode 4 and below are supported 3 1 = Ultra DMA mode 3 and below are supported 2 1 = Ultra DMA mode 2 and below are supported 1 1 = Ultra DMA mode 1 and below are supported 0 1 = Ultra DMA mode 0 is supported Maximum LBA address Command set/feature set supported 15-8 Reserved 7 1 = Host Protected Area feature set supported 6-4 Reserved 3 1 = Security feature set supported 2 1 = SMART error log supported 1 1 = SMART self-test supported 0 1 = SMART feature set supported Reserved Integrity word (see note below) 15-8 Checksum 7-0 Signature (A5h) Figure 93. Device Configuration Overlay Data structure Note: Bits 7-0 of this word contain the value A5h. Bits 15-8 of this word contain the data structure checksum. The data structure checksum is the two's complement of the sum of all byte in words 0 through 254 and the byte consisting of bits 7-0 of word 255. Each byte is added with unsigned arithmetic and overflow is ignored. The sum of all bytes is zero when the checksum is correct. Cylinder high Cylinder low Sector count Invalid word location Invalid bit location Error reason code & description 01h DCO feature is frozen 02h Device is now Security Locked mode 03h Device feature is already modified with DCO 04h User attempt to disable any feature enabled 05h Device is now SET MAX Locked or Frozen mode 06h Protected area is now established 07h DCO is not supported 08h Subcommand code is invalid FFh other reason Figure 94. DCO error information definition Deskstar 120GXP hard disk drive specifications 110