AMD Geode SC3200 - Manual (Page 415)

AMD Geode™ SC3200 Processor Data Book 415
Electrical Specifications 32581C
9.3.14 Power Management Interface
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 9-41. 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 9-42. 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