User guide

203 Series Industrial Grade 2.5" FlashDrive Product Manual v2.0Cactus Technologies
®
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This command writes the desired head and cylinder of the selected drive with a vendor unique
pattern. To remain host backward compatible, the drive expects a sector buer of data from the
host to follow the command with the same protocol as the Write Sector(s) command although the
information in the buer is not used by the drive. If LBA=1 then the number of sectors to format is
taken from the Sec Cnt register (0=256).
5.1.5. Identify Drive-ECH
Bit -> 7 6 5 4 3 2 1 0
Command (7)
ECH
C/D/H (6)
X X X Drive X
Cyl High (5)
X
Cyl Low (4)
X
Sec Num (3)
X
Sec Cnt (2)
X
Feature (1)
X
Table 5-15. Identify Drive
The Identify Drive command in Table 5-15 enables the host to receive parameter information from
the drive. This command has the same protocol as the Read Sector(s) command. The parameter
words in the buer have the arrangement and meanings dened in Table 5-16. All reserved bits or
words are zero. Table 5-16 is the denition for each eld in the Identify Drive Information.
Table 5-16. Identify Drive Information
Word
Address
Default
Value
Total
Bytes
Data Field Type Information
0 044AH 2 General conguration bit-signicant information.
1 01EFH 2 Default number of cylinders.
2 0000H 2 Reserved.
3 0004H 2 Default number of heads.
4 0000H 2 Number of unformatted bytes per track.
5 0200H 2 Number of unformatted bytes per sector.
6 0020H 2 Default number of sectors per track.
7-8 0000H,F780H 4 Number of sectors per drive (Word 7 = MSW, Word 8 = LSW).
9 0000H 2 Reserved.
10-19 aaaa 20 Serial number in ASCII (Right Justied).
20 0001H 2 Buer type (single port).
21 0001H 2 Buer size in 512 byte increments.
22 0004H 2 Number of ECC bytes passed on Read/Write Long Commands.
23-26 aaaa 8 Firmware revision in ASCII . Big Endian Byte Order in Word.
27-46 aaaa 40
Model number in ASCII (Left Justied) Big Endian Byte Order in
Word.
47 0001H 2 Maximum of 1 sector on Read/Write Multiple command.