p p , p , , p , p p. ( , p p pp: p - 1200 , pp , p ). pp 14, 0, p. p pp BIOS pp p p . p L p pp , p p p:

p : 7 6 5 4 3 2 1 0

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| | | |

p p () -------------- | | |

p 蠠 ------------------- | |

p ---------------- |

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p p p 6-1. p p 6-2.

6-1

p p p 7, 6 5 p.

p

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9600 1 1 1

4800 1 1 0

2400 1 0 1

1200 1 0 0

600 0 1 1

300 0 1 0

150 0 0 1