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AMD Geode™ SC2200 Processor Data Book 435
Electrical Specifications
32580B
9.3.14 Power Management
LED# Cycle time: 1 s ± 0.1 s, 40%-60% duty cycle.
Figure 9-53. PWRBTN# Trigger and ONCTL# Timing Diagram
Figure 9-54. GPWIO and ONCTL# Timing Diagram
Table 9-42. PWRBTN# Timing Parameters
Symbol Parameter Min Max Unit Comments
t
PBTNP
PWRBTN# pulse width 16 ms Note 1
t
PBTNE
Delay from PWRBTN# events to
ONCTL#
14 16 ms
Note 1. Not 100% tested.
PWRBTN#
ONCTL#
t
PBTNP
t
PBTNP
t
PBTNE
t
PBTNE
Table 9-43. Power Management Event (GPWIO) and ONCTL# Timing Parameters
Symbol Parameter Min Max Unit Comments
t
PM
Power management event to ONCTL#
assertion
45 ns
t
PM
ONCTL#
PWRCNT1
GPWIOx
PWRCNT2