SanDisk SDCFH-004G Product Manual - Page 61

Word 5: Number of Unformatted Bytes per Sector.

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SanDisk CompactFlash Card OEM Product Manual ATA Command Description Table 5-8 Identify Device Information Word Address 163 164 165-175 176-255 Default Value 00XXh 001Bh 0000h 0000h Total Bytes 2 2 22 140 Data Field Type Information CF Advanced True IDE Timing Mode Capability and Setting CF Advanced PCMCIA I/O and Memory Timing Mode Capability Reserved for assignment by the CFA Reserved a. Multiword DMA is supported by SanDisk PCMCIA. For all unsupported cases, 0100H is reported in word 49, and 0000H is reported in words 52, 63, and 65. CompactFlash products will support multiword. Word 0: General Configuration. This field informs the host that this is a non-magnetic, hard sectored, removable storage device with a transfer rate greater than 10 Mb/sec and is not MFM encoded. CompactFlash products report 848AH in compliance with the CFA specification. Word 1: Default Number of Cylinders. This field contains the number of translated cylinders in the default translation mode. This value will be the same as the number of cylinders. Word 3: Default Number of Heads. This field contains the number of translated heads in the default translation mode. Word 4: Number of Unformatted Bytes per Track. This field contains the number of unformatted bytes per translated track in the default translation mode. Word 5: Number of Unformatted Bytes per Sector. This field contains the number of unformatted bytes per sector in the default translation mode. Word 6: Default Number of Sectors per Track. This field contains the number of sectors per track in the default translation mode. Words 7-8: Number of Sectors per Card. This field contains the number of sectors per CompactFlash Memory Card. This double word value is also the first invalid address in LBA translation mode. Words 10-19: Memory Card Serial Number. The contents of this field are right justified and padded with spaces (20h). Word 20: Buffer Type. This field defines the buffer capability with the 0002h meaning a dual ported multi-sector buffer capable of simultaneous data transfers to or from the host and the CompactFlash Memory Card. © 2007 SanDisk Corporation 5-7 Rev. 12.0, 02/07

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SanDisk CompactFlash Card OEM Product Manual
ATA Command Description
Table 5-8
Identify Device Information
Word
Address
Default Value
Total Bytes
Data Field Type Information
163
00XXh
2
CF Advanced True IDE Timing Mode
Capability and Setting
164
001Bh
2
CF Advanced PCMCIA I/O and Memory
Timing Mode Capability
165-175
0000h
22
Reserved for assignment by the CFA
176-255
0000h
140
Reserved
a.
Multiword DMA is supported by SanDisk PCMCIA. For all unsupported cases, 0100H is reported in
word 49, and 0000H is reported in words 52, 63, and 65. CompactFlash products will support multi-
word.
Word 0: General Configuration.
This field informs the host that this is a non-magnetic, hard
sectored, removable storage device with a transfer rate greater than 10 Mb/sec and is not MFM
encoded. CompactFlash products report 848AH in compliance with the CFA specification.
Word 1: Default Number of Cylinders.
This field contains the number of translated
cylinders in the default translation mode. This value will be the same as the number of
cylinders.
Word 3: Default Number of Heads.
This field contains the number of translated heads in the
default translation mode.
Word 4: Number of Unformatted Bytes per Track.
This field contains the number of
unformatted bytes per translated track in the default translation mode.
Word 5: Number of Unformatted Bytes per Sector.
This field contains the number of
unformatted bytes per sector in the default translation mode.
Word 6: Default Number of Sectors per Track.
This field contains the number of sectors
per track in the default translation mode.
Words 7-8: Number of Sectors per Card.
This field contains the number of sectors per
CompactFlash Memory Card. This double word value is also the first invalid address in LBA
translation mode.
Words 10-19:
Memory Card Serial Number.
The contents of this field are right justified
and padded with spaces (20h).
Word 20:
Buffer Type.
This field defines the buffer capability with the 0002h meaning a
dual ported multi-sector buffer capable of simultaneous data transfers to or from the host and
the CompactFlash Memory Card.
© 2007 SanDisk Corporation
5-7
Rev. 12.0, 02/07