AN2202

4 Example application

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4

Example application

4.1

Example hardware

Figure 4 shows an example schematic for using the STR73x power management features.

Figure 4.

Example application schematic

Note: 1 WUP6 is configured as an external interrupt pin, it is used to wake up the MCU from WFI,

LPWFI or STOP mode.

2 P4.6 is used to indicate that the core is running (GPIO toggling) during RUN/SLOW modes.

3 P5.8 is used to enter HALT or SLOW modes. It is used also to exit from SLOW_RC mode.

4.2

Example software

A program is provided with this application note for using the different low power modes, it

includes the following source files:

STR73x

P5.8

P4.6

LED1

XTAL1

XTAL2

15pF

15pF

4MHz

nRSTIN

VBIAS

WUP6

100nF

A

10K

1K

1.3M

10K

100nF

100nF

100

10nF