ST7MC1K2-Auto datasheet(55/371 Pages) STMICROELECTRONICS

55 / 371 page

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Product(s)

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Product(s)

ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto

Supply, reset and clock

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Figure 15.

Main clock controller (MCC/RTC) block diagram

6.6.5

Low power modes

DIV 2, 4, 8, 16

MCC/RTC interrupt

SMS

DIV128

CP0

TB1 TB0 OIE

OIF

CPU clock to

MCCSR

RTC

counter

CPU and

peripherals

fOSC2

fCPU

MCO

BC1 BC0

MCCBCR

Beep

generator

Beep signal

To motor control

peripheral

fMTC

(and to MTC peripheral)

DIV 2, 4, 8, 16

DIV 2

fCLK

DIV 2

fADC

Table 11.

Effect of low power modes on MCC/RTC

Mode

Description

Wait

No effect on MCC/RTC peripheral.

MCC/RTC interrupt cause the device to exit from Wait mode.

Active Halt

No effect on MCC/RTC counter (OIE bit is set), the registers are frozen.

MCC/RTC interrupt cause the device to exit from Active Halt mode.

Halt

MCC/RTC counter and registers are frozen.

MCC/RTC operation resumes when the MCU is woken up by an interrupt with ‘exit from

HALT’ capability.

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ST7MC1K2-Auto Datasheet(PDF) 55 Page - STMicroelectronics

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