C8051F960-B-GM Datasheet, PDF(265/492 Page) Silicon Laboratories – Ultra Low Power 128K, LCD MCU Family

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

C8051F960-B-GM Datasheet, PDF (265/492 Pages) Silicon Laboratories – Ultra Low Power 128K, LCD MCU Family

◁

C8051F96x

SFR Definition 19.4. PMU0CF: Power Management Unit Configuration1,2,3

Bit

7

6

5

4

3

2

1

0

Name SLEEP SUSPEND CLEAR RSTWK RTCFWK RTCAWK PMATWK CPT0WK

Type W

W

W

R

R/W

R/W

R/W

R/W

Reset 0

0

0

Varies

Varies

Varies

Varies

Varies

SFR Page = 0x0; SFR Address = 0xB5

Bit Name

Description

Write

Read

7

SLEEP Sleep Mode Select

Writing 1 places the

N/A

device in Sleep Mode.

6 SUSPEND Suspend Mode Select

Writing 1 places the

N/A

device in Suspend Mode.

5

CLEAR Wake-up Flag Clear

Writing 1 clears all wake- N/A

up flags.

4 RSTWK Reset Pin Wake-up Flag N/A

Set to 1 if a falling edge

has been detected on

RST.

3 RTCFWK SmaRTClock Oscillator 0: Disable wake-up on Set to 1 if the SmaRT-

Fail Wake-up Source

SmaRTClock Osc. Fail. Clock Oscillator has failed.

Enable and Flag

1: Enable wake-up on

SmaRTClock Osc. Fail.

2 RTCAWK SmaRTClock Alarm

0: Disable wake-up on

Wake-up Source Enable SmaRTClock Alarm.

and Flag

1: Enable wake-up on

SmaRTClock Alarm.

Set to 1 if a SmaRTClock

Alarm has occurred.

1 PMATWK Port Match Wake-up

0: Disable wake-up on Set to 1 if a Port Match

Source Enable and Flag Port Match Event.

Event has occurred.

1: Enable wake-up on ï

Port Match Event.

0 CPT0WK Comparator0 Wake-up 0: Disable wake-up on Set to 1 if Comparator0

Source Enable and Flag Comparator0 rising edge. rising edge has occurred.

1: Enable wake-up on

Comparator0 rising edge.

Notes:

1. Read-modify-write operations (ORL, ANL, etc.) should not be used on this register. Wake-up sources must

be re-enabled each time the SLEEP or SUSPEND bits are written to 1.

2. The Low Power Internal Oscillator cannot be disabled and the MCU cannot be placed in Suspend or Sleep

Mode if any wake-up flags are set to 1. Software should clear all wake-up sources after each reset and after

each wake-up from Suspend or Sleep Modes.

3. PMU0 requires two system clocks to update the wake-up source flags after waking from Suspend mode. The

wake-up source flags will read â0â during the first two system clocks following the wake from Suspend mode.

Rev. 1.0

265

▷