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C156-E142-02EN 4 - 47
4.6.5.3 Flexible disk page
Table 4.57 Flexible disk page
Bit
Byte
76543210
00
0
Page Code (05h)
1 Page Length (1Eh)
2-3 Transfer Rate
4 Number of Heads
5 Sectors per Track
6-7 Data Bytes per Sectors
8-9 Number of Cylinders
10-19 Reserved
20 Motor off Delay
21-27 Reserved
28-29 Medium Rotation Rate
30-31 Reserved
This page is supported for compatibility of device driver.
Recommendation: A device driver should not be used this page, because if device driver uses of
this page and it is not able to keep compatibility for logically of media (No guarantee).
"Transfer Rate" defines "kbits/sec".
"Number of Heads, Sectors per Track and Number of Cylinders" define logical value. It does not
show physical numbers. No guarantee for logical compatibility of media when device driver or
application is used this value.
"Data Bytes per Sectors" defines Block Length (200h or 800h).
"Motor off Delay" defines time for spinning down operation. X'FF' is to does not stop motor
forever.
"Medium Rotation Rate" defines revolutions per minute.