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4.3 SCSI Commands
C156-E224-01EN 4-23
Table 4.33 Mode parameters
Bit
Byt
e
76543210
0-4 Mode Parameter Header
0-7 Block Descriptor
0-n Mode Page (s)
The mode parameter list consists of Mode Parameter Header, Block Descriptor,
and Mode Page.
Table 4.34 shows the format of the Mode Parameter Header field.
Table 4.34 Mode Parameter Header
Bit
Byte
76543210
0 Mode Data Length
1 Medium Type Code
2WP Reserved
3 Block Descriptor Length
Medium Type Code returns the following values:
• 03h for normal MO media
• 07h for overwrite MO media
• 03h for other media or Not Ready state
The Write Protect (WP) bit indicates the state of the write protect key on the
cartridge. If the WP bit is 1, the cartridge is write-protected.
Mode Data Length indicates the length (bytes) of mode data to be transferred.
Block Descriptor Length indicates the length (bytes) of the block descriptor to be
transferred.
Table 4.35 shows the format of the Block Descriptor field.
Table 4.35 Block Descriptor
Bit
Byte
76543210
0 Density Code (00h)
1-3 Number of Blocks
4Reserved
5-7 Block Length