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4-30 C156-E205-01EN
Table 4.27 Device parameter information (4/6)
Word Value Bits Description
84 14 1b
13-0 Reserved (0b)
85 4278h
(Default value)
Command set supported and whether the function is enabled or
disabled
(A value of less than 1 indicates that the command is supported
and enabled.)
15 Unused (0b)
14 NOP command support (1b)
13 READ BUFFER command support (0b)
12 WRITE BUFFER command support (0b)
11 Unused (0b)
10 Host protect area function support (0b)
9 DEVICE RESET command support (1b)
8 SERVICE command interrupt is enabled (0b)
7 Interrupt at release is enabled (0b)
6 Read ahead cache is enabled (1b: Default value)
5 Write cache is enabled (1b: Default value)
4 Packet command function support (1b)
3 Power management function support (1b)
2 Removable media function support (0b)
1 Security mode enabled (0b)
0 SMART function is enabled (0b)
86 0000h
(Default value)
Command set supported and whether the function is enabled or
disabled (A value of less than 1 indicates that the command is
supported and enabled.)
15-8 0b
7 SET MAX security enabled (0b)
6 Spin up function enabled after power-on with SET FEATURES
subcommand (0b)
5 Power-up mode enabled in standby status (0b)
4 Removable media status notification function enabled (0b:
Default value)
3-1 Reserved (0b)
0 DOWNLOAD MICROCODE command supported (0b)