NUTINY-SDK-M0516 Nuvoton Technology Corporation of America, NUTINY-SDK-M0516 Datasheet - Page 104

• Manufacturer Part Number: NUTINY-SDK-M0516
• Description: BOARD EVAL NUMICRO M051 SERIES
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro M051™r
• Type: MCUr

Specifications of NUTINY-SDK-M0516

• Contents: Board, Cable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: M051™ Series, M052/M054/M058/M0516

6.3.1
6.3.2
6.3 Clock Controller
The clock controller generates the clocks for the whole chip, including system clocks and all
peripheral clocks. The clock controller also implements the power control function with the
individually clock ON/OFF control, clock source selection and a 4-bit clock divider. The chip will
not enter power-down mode until CPU sets the power down enable bit (PWR_DOWN_EN) and
Cortex-M0 core executes the WFI instruction. After that, chip enter power-down mode and wait for
wake-up interrupt source triggered to leave power-down mode. In the power down mode, the
clock controller turns off the external crystal and internal 22.1184 MHz oscillator to reduce the
overall system power consumption.
The clock generator consists of 4 sources which list below:
Overview
Clock Generator Block Diagram
One external 4~24 MHz crystal
One internal 22.1184 MHz RC oscillator
One programmable PLL FOUT(PLL source consists of external 4~24 MHz crystal and
internal 22.1184M)
One internal 10 kHz oscillator
NuMicro M051
™
Series Technical Reference Manual
- 104 -
Publication Release Date: Sep 14, 2010
Revision V1.2