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SanDisk CompactFlash Card OEM Product Manual ATA Command Description
Bits 0-13 of word 87 are reserved. Bit 14 of word 87 will be set to one and bit 15 of word 87
will be cleared to zero to provide indication that the features/command sets enabled words are
valid. The values in these words should not be depended upon by host implementers.
Table 5-11 Word 85 Description
Bit Setting Indication
0 0 SMART feature set not enabled
1 1 Security Mode feature set enabled via the Security Set Password command
2 0 Removable Media feature set not supported
3 1 Power Management feature set supported
4 0 Packet Command feature set not enabled
5 1 Write cache enabled
6 1 Look-ahead enabled
7 0 Release Interrupt not enabled
8 0 Service Interrupt not enabled
9 0 Device Reset command not supported
10 0 Host Protected Area feature set not supported
11 --- Obsolete
12 1 Write Buffer command supported by CF Card
13 1 Read Buffer command supported by CF Card
14 1 NOP command supported by CF Card
15 --- Obsolete
Table 5-12 Word 86 Description
Bit Setting Indication
0 0 Download Microcode command not supported by CF Card
1 0 Read DMA Queued and Write DMA Queued commands not supported by CF
Card
2 1 CFA feature set supported by CF Card
3 1 Advanced Power Management feature set by Set Features command
4 0 Removable Media Status feature set not supported by CF Card
Word 163: CF Advanced True IDE Timing Mode Capabilities and Settings. This word
describes the capabilities and current settings for CFA defined advanced timing modes using
the True IDE interface.
There are four separate fields defined that describe support and selection of Advanced PIO
timing modes and Advanced Multiword DMA timing modes. The older modes are reported in
Word 63: Multiword DMA Transfer and and Word 64: Advanced PIO Transfer Modes
Supported.
© 2007 SanDisk Corporation 5-11 Rev. 12.0, 02/07