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4.5 ATA Commands
C156-E205-01EN 4-29
Table 4.27 Device parameter information (3/6)
Word Value Bits Description
80 0020h Major Version number (ATA/ATAPI-5)
81 0015h Minor Version number (ATA/ATAPI-5 T13 1321D revision 1)
82 4278h Command set supported
(A value of less than 1 indicates that the command is supported.)
15 Unused (0b)
14 NOP command (1b)
13 READ BUFFER command (0b)
12 WRITE BUFFER command (0b)
11 Unused (0b)
10 Host protect area function (0b)
9 DEVICE RESET command (1b)
8 SERVICE command interrupt (0b)
7 Interrupt at release (0b)
6 Read ahead cache (1b)
5 Write cache (1b)
4 Packet command function (1b)
3 Power management function (1b)
2 Removable media function (0b)
1 Security mode (0b)
0 SMART function (0b)
83 4010h Command set supported
(A value of less than 1 indicates that the command is supported.)
15 0b.
14 1b
13-8 Reserved (0b)
7 SET MAX security (0b)
6 Spin up function after power-on with SET FEATURES command
5 Power-up mode in standby status (0b)
4 Removable media status notification function (1b)
3-1 Reserved (0b)
0 DOWNLOAD MICROCODE command supported (0b)
84 4000h Command set supported
15 0b