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Quantum Audio Travan 40 Tape Drive STT3401A User Manual

Page 109

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ATAPI Interface

Chapter 5

Seagate Travan 40 Product Manual

Page 101

Word(s)

Starting Offset

(hex)

Description of Contents

Value (hex)

71

8E

15-0 typical time (3 sigma) from receipt of Packet command to release
(nanosecs)
(not supported)

0000

72

90

15-0 typical time (3 sigma) from receipt of Service command to BSY cleared to 0
(nanosecs)
(not supported)

0000

73-74

92

reserved

0000

75

96

Queue depth (not supported)
15-5 reserved
4-0 maximum queue depth supported

0000

76-70

98

reserved

0000

80

A0

Major version number
15-5 reserved
4 1=supports ATA/ATAPI-4
3 1=supports ATA-3
2 1=supports ATA-2
1 1=supports ATA-1
0 reserved

001E

81

A2

Minor version number
000Fh =ATA/ATAPI-4 T13 1153D revision 7

000F

82

A4

Command and feature sets supported.
If words 82 and 83=0000h or FFFFh, then command set notification is not
supported.
15 1=IDENTIFY DEVICE DMA command is supported
14 1=NOP command is supported
13 1=READ BUFFER command is supported
12 1=WRITE BUFFER command is supported
11 1=WRITE VERIFY command is supported
10 1=Host Protected Area feature set is supported
9 1=DEVICE RESET command is supported
8 1=SERVICE interrupt is supported
7 1=release interrupt is supported
6 1=look-ahead is supported
5 1=write cache is supported
4 1=PACKET command feature set is supported
3 1=Power management feature set is supported
2 1=Removable Media feature set is supported
1 1=Security Mode feature set is supported
0 1=SMART feature set is supported

4278

83

A6

Command sets supported.
If words 82 and 83=0000h or FFFFh, then command set notification is not
supported.
15 shall be cleared to 0
14 shall be set to one
13-3 reserved
2 1=Compact Flash feature set is supported
1 1=Read/Write DMA QUEUED command is supported
0 1=DOWNLOAD MICROCODE command is supported

0000

84

A8

Command set/feature supported extension.
If words 82, 83, and 84 = 0000h or FFFFh, then command set notification extension
is not supported.
15 shall be cleared to 0
14 shall be set to one
13-0 reserved

4000

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