
SDLT 600 SCSI Interface Guide Chapter 4: SCSI Commands
81-81200-02 REV A01 January 2005 4-71
Mode Parameter Header
The following figure and table illustrate and describe the fields that make up the MODE SELECT
command’s Mode Parameter header.
Figure 4-41. MODE SELECT (6) Mode Parameter Header — Data Format
Figure 4-42. MODE SELECT (10) Mode Parameter Header — Data Format
Bit
Byte
7 6 5 4 3 2 1 0
0 Reserved
1 Medium Type
2 Ignored Buffered Mode Speed (0h)
3 Block Descriptor Length
Bit
Byte
7 6 5 4 3 2 1 0
0 – 1 Reserved
2 Medium Type
3 Ignored Buffered Mode Speed (0h)
4 – 5 Reserved
6 – 7
(MSB)
Block Descriptor Length
(LSB)
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