SanDisk CompactFlash Extreme III - Manual (Page 64)

ATA Command Description SanDisk CompactFlash Card OEM Product Manual
Word 68: Minimum PIO Transfer Cycle Time With Flow Control. This field indicates in
nanoseconds, the minimum cycle time the card supports while performing data transfers using
flow control.
Words 82-84: Features/Command Sets Supported. Words 82, 83, and 84 indicate the
features and command sets supported. The value 0000h or FFFFh was placed in each of these
words by CompactFlash cards prior to ATA-3 and will be interpreted by the host as meaning
that features/command sets supported are not indicated. Bits 1 through 13 of Word 83, and bits
0 through 13 of Word 84 are reserved. Bit 14 of Word 83 and Word 84 will be set to "1," and
bit 15 of Word 83 and Word 84 will be cleared to zero which indicates that the features and
command sets supported words are valid. The values in these words should not be depended
on by host implementers.
Table 5-9 Word 82 Description
Bit Setting Indication
0 0 SMART feature set not supported
1 1 Security Mode feature set supported
2 0 Removable Media feature set not supported
3 1 Power Management feature set supported
4 0 Packet Command feature set not supported
5 1 Write cache supported
6 1 Look-ahead supported
7 0 Release Interrupt not supported
8 0 Service Interrupt not supported
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 5-10 Word 83 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 supported by CF Card
4 0 Removable Media Status feature set not supported by CF Card
Words 85-87: Features/Command Sets Enabled. Words 85, 86, and 87 indicates features/
command sets enabled. The value 0000h or FFFFh was placed in each of these words by
CompactFlash cards prior to ATA-4 and will be interpreted by the host as meaning that
features/command sets enabled are not indicated. Bits 1 through 15 of word 86 are reserved.
02/07, Rev. 12.0 5-10 © 2007 SanDisk Corporation