14.7.8 32 kHz Ultra Low-Power Internal Oscillator (OSCULP32K) Control

Table 14-13. Register Bit Attribute Legend
SymbolDescriptionSymbolDescriptionSymbolDescription
R Readable bit HC Cleared by Hardware(Grey cell)Unimplemented
W Writable bit HS Set by Hardware X Bit is unknown at Reset
K Write to clear S Software settable bit
Name: OSCULP32K
Offset: 0x1C
Reset: 0xXX
Property: Write-Protected

Bit 76543210 
 WRTLOCK  CALIB[4:0] 
Access R/WR/WR/WR/WR/WR/W 
Reset 0xxxxx 

Bit 7 – WRTLOCK Write Lock

This bit locks the OSCULP32K register for future writes to fix the OSCULP32K configuration.

ValueDescription
0The OSCULP32K configuration is not locked
1The OSCULP32K configuration is locked

Bits 4:0 – CALIB[4:0] Oscillator Calibration

These bits control the oscillator calibration.

These bits are loaded from Flash Calibration at start-up.