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Table 5.33 DEVICE CONFIGURATION IDENTIFY data structure (2/2)
Word
Value
8
X'0015'
9
X'0000'
10 to 20
X'0000'
21
X'2000'
22 to 254
X'0000'
255
X'xxA5'
C141-E245
Serial-ATA command set/function
→ Reflected in IDENTIFY information "Word 76 to 79.
Bits 15-5:
Reserved
Bit 4:
1 = Software Settings Preservation supported
Bit 3:
1 = Asynchronous Notification supported
Bit 2:
1 = Interface power management supported
Bit 1:
1 = Non-zero buffer offsets in DMA Setup FIS supported
Bit 0:
1 = Native command queuing supported
Reserved for Serial-ATA
Reserved
Bits 15-14: Reserved
Bit 13:
Write uncorrectable is allowed
Bit 12-0:
Reserved
Reserved
Bits 15-8:
Check sum code (This is obtained by calculating the sum of
all upper bytes and lower bytes in WORD 0 to 256 and the
byte consisting of bits 7 to 0 in WORD 255, and then
calculating the two's complement of the lowest byte of that
sum.)
Bits 7-0:
5.3 Host Commands
Content
5-89
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