SiM3C1xx Clocking Options

by <a href="http://community.silabs.com/t5/Welcome-and-Announcements/Community-Ranking-System-and-Recognition-Program/m-p/140490#U140490"><font color="#000000"><font size="2">Hero Employee</font></font> </a> Silicon_Labs on ‎11-24-2014 08:44 AM
Question

 

What are the possible clock sources for SiM3C1xx devices?




Answer

 

SiM3C1xx devices have six options for the AHB clock:

RTC0 Oscillator: 32 kHz
Low Frequency Oscillator (LFOSC0): 16.4 kHz
Low Power Oscillator (LPOSC0): 20 MHz
Divided Low Power Oscillator: 2.5 MHz
External Oscillator: varies
PLL0 Oscillator: 23 - 80 MHz

More information on each of these clock sources can be found in AN663: Precision32 MCU Family Clocking Options, the SiM3C1xx data sheet, and the SiM3U1xx/SiM3C1xx reference manual.  The 32-bit MCU application notes and device documentation can be found here: www.silabs.com/32bit-mcu.