Datasheet

Bit 0 of word 86 shall be set to zero; the CompactFlash Storage Card does not support the Download
Microcode command.
Bit 1 of word 86 s hall be set to zero; the CompactFlash Storage Card does not support the Read DMA
Queued and Write DMA Queued commands.
If bit 2 of word 86 shall be set to one, the CompactFlash Storage Card supports the CFA feature set.
If bit 3 of word 86 is set to one, the Advanced Power Management feature set has been enabled via the
Set Features command.
Bit 4 of word 86 shall be set to zero; the CompactFlash Storage Card does not support the Removable
Media Status feature set.
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Word
88:
Ultra
DMA
Modes
Supported
and
Selected
Word 88 identifies the Ultra DMA transfer modes supported by the device and indicates the mode that is
currently selected. Only one DMA mode shall be selected at any given time. If an Ultra DMA mode is
selected, then no Multiword DMA mode shall be selected. If a Multiword DMA mode is selected, then no
Ultra DMA mode shall be selected. Support of this word is mandatory if Ultra DMA is supported.
Bits 15-13: Reserved
Bit 13: 1 = Ultra DMA mode 5 is selected 0 = Ultra DMA mode 5 is not selected
Bit 12: 1 = Ultra DMA mode 4 is selected 0 = Ultra DMA mode 4 is not selected
Bit 11: 1 = Ultra DMA mode 3 is selected 0 = Ultra DMA mode 3 is not selected
Bit 10: 1 = Ultra DMA mode 2 is selected 0 = Ultra DMA mode 2 is not selected
Bit 9: 1 = Ultra DMA mode 1 is selected 0 = Ultra DMA mode 1 is not selected
Bit 8: 1 = Ultra DMA mode 0 is selected 0 = Ultra DMA mode 0 is not selected
Bits 7-5: Reserved
Bit 5: 1 = Ultra DMA mode 5 and below are supported. Bits 0-4 Shall be set to 1
Bit 4: 1 = Ultra DMA mode 4 and below are supported. Bits 0-3 Shall be set to 1.
Bit 3: 1 = Ultra DMA mode 3 and below are supported, Bits 0-2 Shall be set to 1.
Bit 2: 1 = Ultra DMA mode 2 and below are supported. Bits 0-1 Shall be set to 1.
Bit 1: 1 = Ultra DMA mode 1 and below are supported. Bit 0 Shall be set to 1.
Bit 0: 1 = Ultra DMA mode 0 is supported
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Word
89:
Time
required
for
Security
erase
unit
completion
Word 89 specifies the time required for the Security Erase Unit command to complete. This command
shall be supported on CompactFlash Storage Cards that support security.
Value Time
0 Value not specified
1-254 (Value * 2) minutes
255 >508 minutes
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Word
90:
Time
required
for
Enhanced
security
erase
unit
completion
Word 90 specifies the time required for the Enhanced Security Erase Unit command to complete.
This command shall be supported on CompactFlash Storage Cards that support security.
Value Time
0 Value not specified
1-254 (Value * 2) minutes
255 >508 minutes
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Word
91:
Advanced
power
management
level
value
Bits 7-0 of word 91 contain the current Advanced Power Management level setting.
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Word
128:
Security
Status
Bit 8: Security Level
If set to 1, indicates that security mode is enabled and the security level is maximum.
If set to 0 and s ecurity mode is enabled, indicates that the security level is high.
Bit 5: Enhanced security erase unit feature supported