82371AB Datasheet, PDF (206/284 Pages) Intel Corporation – PCI-TO-ISA / IDE XCELERATOR PIIX4

82371AB (PIIX4)
E
Fast Burst Timer Programming Information:
Resolution: 1 ms
Count: 5 bit
[FB_CNT]
Slow Burst Timer Programming Information:
Resolution: 1 sec
Count: 4 bit
[SB_CNT]
Fast Burst Timer Programming Information (for PLL Lock):
Resolution: 1µ or 1 ms
[CPU_SEL]
Count: 5 bit
[CPU_LCK]
Fast Burst Events
IRQ0:
IRQ8:
NMI, INIT, IRQ[1,3:7,9:15]:
PCI Bus Master Activity:
Device 0–13 Monitors:
Slow/Fast Burst Select:
PCI Activity (FRAME# Assertion):
GPI1 Asserted:
LID Asserted:
— Polarity Select:
PWRBTN# Asserted:
SMI# Event:
[BRLD_EN_IRQ0]
[BRLD_EN_IRQ8]
[BRLD_EN_IRQ]
[BRLD_EN_BM]
[BRLD_EN_DEVx] x=1–13
[BRLD_SEL_DEVx] x=1–3, 5
[BRLD_EN_PCI]
[BRLD_EN_PME]
[BRLD_EN_PME]
[LID_POL]
[BRLD_EN_PME]
[BRLD_EN_PME]
Slow Burst Events
Device 0–13 Monitors:
Slow/Fast Burst Select:
[BRLD_EN_DEVx] x=1–3, 5
[BRLD_SEL_DEVx] x=1–3, 5
206
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4/9/97 2:23 PM PIIX4aDS
INTEL CONFIDENTIAL
(until publication date)