System Design Considerations
7-12
Intel
®
810A3 Chipset Design Guide
NOTE: * This value is board dependent.
Table 7-3. Power Sequencing Timing Definitions
Symbol
Parameter
Min.
Max.
Units
t1
VccSUS Good to RSMRST# inactive
1
25
ms
t2
VccSUS Good to SLP_S3#, SLP_S5#, and PCIRST# active
50
ns
t3
RSMRST# inactive to SLP_S3# inactive
1
4
RTC clocks
t4
RSMRST# inactive to SLP_S5# inactive
1
4
RTC clocks
t5
RSMRST# inactive to SUS_STAT# inactive
1
4
RTC clocks
t6
SLP_S3#, SLP_S5#, SUS_STAT# inactive to Vcc3.3core good
*
*
t7
Vcc3.3core good to CPUSLP# inactive
50
ns
t8
Vcc3.3core good to PWROK active
*
*
t9
Vcc3.3core good to clocks valid
*
*
t10
Clocks valid to PCIRST# inactive
500
us
t11
PWROK active to PCIRST# inactive
.9
1.1
ms
t12
PCIRST# inactive to Cycle 1 from GMCH
1
ms
t13
Cycle 1 from ICH to Cycle 2 from GMCH
60
ns
t14
PCIRST# inactive to STPCLK de-assertion
1
4
PCI clocks
t15
PCIRST# to frequency straps valid
-4
4
PCI clocks
t16
Cycle 2 from ICH to frequency straps invalid
180
ns
t17
Cycle 2 from ICH to CPURST# inactive
110
ns
t18
Stop Grant Cycle to CPUSLP# active
8
PCI clocks
t19
CPUSLP# active to SUS_STAT# active
1
RTC clock
t20
SUS_STAT# active to PCIRST# active
2
3
RTC clocks
t21
PCIRST# active to SLP_S3# active
1
2
RTC clocks
t22
PWROK inactive to Vcc3.3core not good
20
ns
t23
Wake event to SLP_S3# inactive
2
3
RTC clocks
t24
PCIRST# inactive to STPCLK# inactive
1
4
PCI clocks
t25
SLP_S3# active to SLP_S5# active
1
2
RTC clocks
t26
SLP_S5# inactive to SLP_S3# inactive
2
3
RTC clocks
Содержание 810A3
Страница 1: ...Intel 810A3 Chipset Platform Design Guide July 2000 Order Number 298186 002...
Страница 11: ...1 Introduction...
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Страница 25: ...2 PGA370 Processor Design Guidelines...
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Страница 41: ...3 SC242 Processor Design Guidelines...
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Страница 51: ...4 Layout and Routing Guidelines...
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Страница 93: ...5 Advanced System Bus...
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Страница 114: ...Advanced System Bus Design 5 20 Intel 810A3 Chipset Design Guide This page is intentionally left blank...
Страница 115: ...6 Clocking...
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Страница 123: ...7 System Design Considerations...
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Страница 137: ...8 Design Checklist...
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Страница 157: ...9 Third Party...
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Страница 162: ...Third Party Vendor Information 9 4 Intel 810A3 Chipset Design Guide This page is intentionally left blank...
Страница 163: ...A PCI Devices Functions Registers Interrupts...
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