32579B

Electrical Specifications

9.3.15Power Management

LED# Cycle time: 1 s ± 0.1 s, 40%-60% duty cycle.

Table 9-44. PWRBTN# Timing Parameters

Symbol

Parameter

Min

Max

Unit

Comments

 

 

 

 

 

 

tPBTNP

PWRBTN# pulse width

16

 

ms

Note 1

tPBTNE

Delay from PWRBTN# events to

14

16

ms

 

 

ONCTL#

 

 

 

 

 

 

 

 

 

 

Note 1. Not 100% tested.

PWRBTN#

 

 

tPBTNP

 

 

 

 

 

tPBTNP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tPBTNE

 

 

 

 

 

 

tPBTNE

 

 

ONCTL#

Figure 9-54. PWRBTN# Trigger and ONCTL# Timing Diagram

Table 9-45. Power Management Event (GPWIO) and ONCTL# Timing Parameters

Symbol

Parameter

Min

Max

Unit

Comments

 

 

 

 

 

 

tPM

Power management event to ONCTL#

 

45

ns

 

 

assertion

 

 

 

 

 

 

 

 

 

 

GPWIOx

tPM

ONCTL#

PWRCNT1

PWRCNT2

Figure 9-55. GPWIO and ONCTL# Timing Diagram

432

AMD Geode™ SC1200/SC1201 Processor Data Book

Page 432
Image 432
AMD SC1200, SC1201 Power Management, PWRBTN# Timing Parameters, Onctl# Pwrbtn#, Power management event to ONCTL# Assertion