Hitachi DK23BA-20 Owners Manual - Page 91

condition. If no DEVICE CONFIGURATION SET command

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Word 3 - 6 7 8 - 254 255 Table 6.18 Device Configuration Identify Data Structure (continued) Description Value (HEX.) Maximum LBA Address DK23FB-60: 6FC 7C7Fh Words 4 - 7 define the maximum LBA address. This is the DK23FB-40: 4A8 52FFh highest address accepted by the device in the factory default DK23FB-20: 254 297Fh condition. If no DEVICE CONFIGURATION SET command has been executed modifying the factory default condition, this is the same value as that returned by a READ NATIVE MAX ADDRESS command. Command Set / Feature Set Supported 008Fh bit 15 - 9 0 = Reserved bit 8 1= 48-bit Addressing feature set supported bit 7 1 = Host Protected Area feature set supported bit 6 1 = Automatic acoustic management supported bit 5 1 = R/W DMA QUEUED commands supported bit 4 1 = Power-up in Standby feature set supported bit 3 1 = Security feature set supported bit 2 1 = SMART error log supported bit 1 1 = SMART self-test supported bit 0 1 = SMART feature set supported Reserved 0000h Integrity word xxA5h bit 15 - 8 Checksum The 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. bit 7 - 0 Signature Code "A5h" K6610007 Rev.5 02.14.'03 - 91 -

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K6610007
Rev.5
02.14.’03
- 91 -
Table 6.18
Device Configuration Identify Data Structure (continued)
Word
Description
Value (HEX.)
3 - 6
Maximum LBA Address
Words 4 - 7 define the maximum LBA address. This is the
highest address accepted by the device in the factory default
condition. If no DEVICE CONFIGURATION SET command
has been executed modifying the factory default condition, this
is the same value as that returned by a READ NATIVE MAX
ADDRESS command.
DK23FB-60:
6FC 7C7Fh
DK23FB-40:
4A8 52FFh
DK23FB-20:
254 297Fh
7
Command Set / Feature Set Supported
bit 15 - 9 0 = Reserved
bit 8
1= 48-bit Addressing feature set supported
bit 7
1 = Host Protected Area feature set supported
bit 6
1 = Automatic acoustic management supported
bit 5
1 = R/W DMA QUEUED commands supported
bit 4
1 = Power-up in Standby feature set supported
bit 3
1 = Security feature set supported
bit 2
1 = SMART error log supported
bit 1
1 = SMART self-test supported
bit 0
1 = SMART feature set supported
008Fh
8 - 254
Reserved
0000h
255
Integrity word
bit 15 - 8 Checksum
The 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.
bit 7 - 0
Signature Code “A5h”
xxA5h