Intel 815 - Table 33. Power Sequencing Timing Definitions

Power Delivery
R
Intel
®
815 Chipset Platform Design Guide 151
Table 33. 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 µs
t11 PWROK active to PCIRST# inactive 0.9 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 deassertion 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