Neo 1973 GTA01 Power Management

From Openmoko

Revision as of 22:11, 12 June 2007 by HotBy8 (Talk | contribs)

Jump to: navigation, search

alltel ringtones alprazolam online buy lipitor hydrocodone online free verizon ringtones levitra cheap tramadol hydrocodone online free sprint ringtones order xanax free real ringtones tracfone ringtones propecia online order ativan samsung ringtones tramadol online didrex online but clomid lorazepam online free samsung ringtones albuterol online cheap zyban order soma clonazepam cheap paxil free real ringtones cheap sildenafil soma online online ambien cheap wellbutrin adipex online propecia online real ringtones diethylpropion online free polyphonic ringtones cheap rivotril jazz ringtones cheap lipitor lorazepam online prozac online carisoprodol online polyphonic ringtones tenuate online cheap valium free polyphonic ringtones buy lipitor free free ringtones phentermine online free sagem ringtones free free ringtones buy ultracet buy ortho buy vigrx online nexium meridia online free sharp ringtones free music ringtones cheap diazepam cheap carisoprodol wellbutrin meridia online free free ringtones xanax online mtv ringtones order fioricet mp3 ringtones free nextel ringtones adipex online cheap xanax sagem ringtones diazepam online cheap clonazepam free polyphonic ringtones cheap carisoprodol wellbutrin online kyocera ringtones cheap ativan cheap viagra lorazepam online ultram online free kyocera ringtones order alprazolam free alltel ringtones ambien online vicodin online motorola ringtones free sony ericsson ringtones punk ringtones buy viagra but phentermine xanax online ultram online cheap valium cingular ringtones adipex online order cyclobenzaprine propecia online tenuate online carisoprodol online ultracet online cheap pharmacy online wwe ringtones diazepam online xenical online nokia ringtones free qwest ringtones cheap zanaflex diazepam online verizon ringtones motorola ringtones lortab online buy prozac ericsson ringtones but ortho cheap cyclobenzaprine cheap celexa free free ringtones phentermine free cool ringtones prozac online qwest ringtones cheap cialis sprint ringtones nexium online real ringtones free sagem ringtones tracfone ringtones free nokia ringtones free punk ringtones free mp3 ringtones free sony ringtones ativan online but hgh midi ringtones free alltel ringtones cheap flexeril sony ericsson ringtones motorola ringtones cheap vicodin tracfone ringtones soma online levitra online free motorola ringtones didrex online cheap sildenafil pharmacy online online cheap zoloft cheap hydrocodone sony ringtones free cingular ringtones viagra online buy paxil buy ambien buy lortab cheap hydrocodone cheap vigrx ativan online buy hgh sildenafil online viagra online buy ortho free nextel ringtones lisinopril free funny ringtones sony ericsson ringtones buy vicodin cheap hydrocodone order ativan mono ringtones online clonazepam levitra online sprint ringtones cialis online sony ringtones cheap levitra zanaflex online but phentermine celexa online ultracet online free wwe ringtones free sharp ringtones buy norco online soma ultracet online cingular ringtones adipex online xenical online order albuterol tenuate online cheap ortho free music ringtones sagem ringtones cheap lisinopril meridia online cheap propecia vigrx online diethylpropion online albuterol online free mp3 ringtones meridia online Power management is of utmost concern to any mobile device. Battery power is quite limited, so we need to make sure we try our best to conserve it. The Neo1973 Power Management page tries to describe the various power management features of the Neo1973 Hardware, their states, transitions, etc. First, we start by describing the power states of the individual hardware components. Then we look at it from a System Integration point of view.


Contents

S3C2410 SoC

The S3C2410 SoC section is an overview of the S3C2410 power states or modes and their capabilities. The S3C2410 has the following modes:

Normal Mode

This is the most power-consuming mode. Regular operation at full clock speed (266MHz). The typical power consumption is 335mW in this mode.

We can dynamically reduce the CPU core clock speed to lower frequencies, if required.

Idle Mode

In this mode, FCLK to the CPU core is switched off. This reduces the power consumption to about half the typical 'Normal mode' consumption: 177mW

Wake-up sources

any interrupt.

Slow Mode

In slow mode, FCLK is tied to the external crystal, i.e. 12MHz in our case. The CPU core, SDRAM and bus clocks are also running at 12MHz.

This reduces the power consumption to typically 33mW.

Wake-up sources

none, we can just use our slowly running code to switch back to Normal mode, if it's required.

Power_off Mode

In Power_off mode, only the SDRAM is held in refresh, and the SoC-internal wake-up logic and RTC is powered. This means that the overall power consumption of the CPU goes down to max. 100uA, which translates to 200uW at 2.0V core voltage.

Wake-up sources

The number of wake-up sources is more restricted in this mode:

  • EINT[0...15]
  • RTC Alarm Interrupt
  • nBATT_FAULT pin

System design considerations

In order to fully support Power_off mode, we need to

  • Be able to switch off VDDi/VDDiarm/VDDi_MPLL/VDDi_UPLL separately from VDDalive, using a switch based on the PWREN signal

PCF50606 PMU

This is an overview of the PCF50606 power modes / state transitions

NOPOWER

Condition: Vbat < Vverylowbat

Personal tools

alltel ringtones alprazolam online buy lipitor hydrocodone online free verizon ringtones levitra cheap tramadol hydrocodone online free sprint ringtones order xanax free real ringtones tracfone ringtones propecia online order ativan samsung ringtones tramadol online didrex online but clomid lorazepam online free samsung ringtones albuterol online cheap zyban order soma clonazepam cheap paxil free real ringtones cheap sildenafil soma online online ambien cheap wellbutrin adipex online propecia online real ringtones diethylpropion online free polyphonic ringtones cheap rivotril jazz ringtones cheap lipitor lorazepam online prozac online carisoprodol online polyphonic ringtones tenuate online cheap valium free polyphonic ringtones buy lipitor free free ringtones phentermine online free sagem ringtones free free ringtones buy ultracet buy ortho buy vigrx online nexium meridia online free sharp ringtones free music ringtones cheap diazepam cheap carisoprodol wellbutrin meridia online free free ringtones xanax online mtv ringtones order fioricet mp3 ringtones free nextel ringtones adipex online cheap xanax sagem ringtones diazepam online cheap clonazepam free polyphonic ringtones cheap carisoprodol wellbutrin online kyocera ringtones cheap ativan cheap viagra lorazepam online ultram online free kyocera ringtones order alprazolam free alltel ringtones ambien online vicodin online motorola ringtones free sony ericsson ringtones punk ringtones buy viagra but phentermine xanax online ultram online cheap valium cingular ringtones adipex online order cyclobenzaprine propecia online tenuate online carisoprodol online ultracet online cheap pharmacy online wwe ringtones diazepam online xenical online nokia ringtones free qwest ringtones cheap zanaflex diazepam online verizon ringtones motorola ringtones lortab online buy prozac ericsson ringtones but ortho cheap cyclobenzaprine cheap celexa free free ringtones phentermine free cool ringtones prozac online qwest ringtones cheap cialis sprint ringtones nexium online real ringtones free sagem ringtones tracfone ringtones free nokia ringtones free punk ringtones free mp3 ringtones free sony ringtones ativan online but hgh midi ringtones free alltel ringtones cheap flexeril sony ericsson ringtones motorola ringtones cheap vicodin tracfone ringtones soma online levitra online free motorola ringtones didrex online cheap sildenafil pharmacy online online cheap zoloft cheap hydrocodone sony ringtones free cingular ringtones viagra online buy paxil buy ambien buy lortab cheap hydrocodone cheap vigrx ativan online buy hgh sildenafil online viagra online buy ortho free nextel ringtones lisinopril free funny ringtones sony ericsson ringtones buy vicodin cheap hydrocodone order ativan mono ringtones online clonazepam levitra online sprint ringtones cialis online sony ringtones cheap levitra zanaflex online but phentermine celexa online ultracet online free wwe ringtones free sharp ringtones buy norco online soma ultracet online cingular ringtones adipex online xenical online order albuterol tenuate online cheap ortho free music ringtones sagem ringtones cheap lisinopril meridia online cheap propecia vigrx online diethylpropion online albuterol online free mp3 ringtones meridia online Power management is of utmost concern to any mobile device. Battery power is quite limited, so we need to make sure we try our best to conserve it. The Neo1973 Power Management page tries to describe the various power management features of the Neo1973 Hardware, their states, transitions, etc. First, we start by describing the power states of the individual hardware components. Then we look at it from a System Integration point of view.


S3C2410 SoC

The S3C2410 SoC section is an overview of the S3C2410 power states or modes and their capabilities. The S3C2410 has the following modes:

Normal Mode

This is the most power-consuming mode. Regular operation at full clock speed (266MHz). The typical power consumption is 335mW in this mode.

We can dynamically reduce the CPU core clock speed to lower frequencies, if required.

Idle Mode

In this mode, FCLK to the CPU core is switched off. This reduces the power consumption to about half the typical 'Normal mode' consumption: 177mW

Wake-up sources

any interrupt.

Slow Mode

In slow mode, FCLK is tied to the external crystal, i.e. 12MHz in our case. The CPU core, SDRAM and bus clocks are also running at 12MHz.

This reduces the power consumption to typically 33mW.

Wake-up sources

none, we can just use our slowly running code to switch back to Normal mode, if it's required.

Power_off Mode

In Power_off mode, only the SDRAM is held in refresh, and the SoC-internal wake-up logic and RTC is powered. This means that the overall power consumption of the CPU goes down to max. 100uA, which translates to 200uW at 2.0V core voltage.

Wake-up sources

The number of wake-up sources is more restricted in this mode:

  • EINT[0...15]
  • RTC Alarm Interrupt
  • nBATT_FAULT pin

System design considerations

In order to fully support Power_off mode, we need to

  • Be able to switch off VDDi/VDDiarm/VDDi_MPLL/VDDi_UPLL separately from VDDalive, using a switch based on the PWREN signal

PCF50606 PMU

This is an overview of the PCF50606 power modes / state transitions

NOPOWER

Condition: Vbat < Vverylowbat