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Bitfields for Intel 82371/82378/82379 SMI Request Register

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Bit Description

15 - 9

reserved

8

(82371SB only) Legacy USB SMI status

7

APM SMI Status (write to PORT 00B2h triggered SMI)

6

EXTSMI# SMI Status (EXTSMI# line triggered SMI)

5

Fast-Off Timer expired

4

IRQ12 triggered SMI

3

IRQ8 triggered SMI

2

IRQ4 triggered SMI

1

IRQ3 triggered SMI

0

IRQ1 triggered SMI

Note:

Software must explicitly reset the appropriate bits.

See Also:

#01064,#01081,#01167