M0564LE4AE Datasheet, PDF (68/161 Pages) List of Unclassifed Manufacturers – 32-BIT MICROCONTROLLER

M0564
USCI SPI
I²C
ACMP
Address match
After software writes 1 to clear WKAKDONE (UI2C_PROTSTS[16], then writes 1
to clear WKF (UI2C_WKSTS[0]).
SS Toggle
After software writes 1 to clear WKF (USPI_WKSTS[0]).
Address match wake-up
After software writes 1 to clear WKAKDONE (I2C_WKSTS[1]). Then software
writes 1 to clear WKIF(I2C_WKSTS[0]).
Comparator Power-Down After software writes 1 to clear WKIF0 (ACMP_STATUS[8]) and WKIF1
Wake-Up Interrupt
(ACMP_STATUS[9]).
Table 6.2-4 Condition of Entering Power-down Mode Again
6.2.4 System Power Distribution
In this chip, power distribution is divided into four segments:
 Analog power from AV_DD and AV_SS provides the power for analog components
operation. The V_REF should be connected with an external 1uF capacitor that should
be located close to the V_REF pin to avoid power noise for analog applications.
 Digital power from V_DD and V_SS supplies the power to the internal regulator which
provides a fixed 1.8 V power for digital operation and I/O pins.
 RTC power from V_BAT provides the power for RTC.
 A dedicated power from V_DDIO supplies the power for PE.8 ~ PE.13.
The outputs of internal voltage regulators, LDO and VDD33, require an external capacitor which
should be located close to the corresponding pin. Analog power (AV_DD) should be the same
voltage level of the digital power (V_DD). Figure 6.2-7 shows the power distribution of the M0564
series.
May 05, 2017
Page 68 of 161
Rev 1.00