Seagate ST34321A Product Manual - Page 36

Description, Contents, Note., Description if bit is set to 1, Word 63, Word 88

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28 Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B Word Description 84 Command sets support extension 85 Command sets enabled 86 Command sets enabled 87 Command sets enable extension 88 Ultra DMA support and current mode 89 Security erase time 90 Enhanced security erase time 91-127 ATA-reserved 128 Security status 129-159 Seagate-reserved 160-255 ATA-reserved Contents 4000H 30xxH 0001H 4000H 0x07H 0000H 0000H 0000H 0000H xxxxH 0000H Note. The following Multiword DMA and Ultra DMA mode settings are used in words 63 and 88, respectively, of the Identify Drive data: Description (if bit is set to 1) Bit Word 63 0 Multiword DMA mode 0 is supported. 1 Multiword DMA mode 1 is supported. 2 Multiword DMA mode 2 is supported. 8 Multiword DMA mode 0 is currently active. 9 Multiword DMA mode 1 is currently active. 10 Multiword DMA mode 2 is currently active. Bit Word 88 0 Ultra DMA mode 0 is supported. 1 Ultra DMA mode 1 is supported. 2 Ultra DMA mode 2 is supported. 8 Ultra DMA mode 0 is currently active. 9 Ultra DMA mode 1 is currently active. 10 Ultra DMA mode 2 is currently active.

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Word
Description
Contents
84
Command sets support extension
4000
H
85
Command sets enabled
30
xx
H
86
Command sets enabled
0001
H
87
Command sets enable extension
4000
H
88
Ultra DMA support and current mode
0
x
07
H
89
Security erase time
0000
H
90
Enhanced security erase time
0000
H
91–127
ATA-reserved
0000
H
128
Security status
0000
H
129–159 Seagate-reserved
xxxx
H
160–255 ATA-reserved
0000
H
Note.
The following Multiword DMA and Ultra DMA mode settings are
used in words 63 and 88, respectively, of the Identify Drive data:
Description (if bit is set to 1)
Bit
Word 63
0
Multiword DMA mode 0 is supported.
1
Multiword DMA mode 1 is supported.
2
Multiword DMA mode 2 is supported.
8
Multiword DMA mode 0 is currently active.
9
Multiword DMA mode 1 is currently active.
10
Multiword DMA mode 2 is currently active.
Bit
Word 88
0
Ultra DMA mode 0 is supported.
1
Ultra DMA mode 1 is supported.
2
Ultra DMA mode 2 is supported.
8
Ultra DMA mode 0 is currently active.
9
Ultra DMA mode 1 is currently active.
10
Ultra DMA mode 2 is currently active.
28
Medalist 8641, 6531, 4321, 3221 and 2110, Rev. B