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Values for speed code

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Value Description

00h

equivalent to 6 MHz 80286 (COMMON)

01h

equivalent to 8 MHz 80286 (FAST)

02h

full 16 MHz (HIGH)

03h

toggles between 8 MHz-equivalent and speed set by system board switch (AUTO or HIGH)

08h

full 16 MHz except 8 MHz-equivalent during floppy disk access

09h

specify speed directly