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Silicon Labs /Series1 /BGM13 /BGM13P22F512GE /CMU /LFXOCTRL

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Interpret as LFXOCTRL

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31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0TUNING0 (XTAL)MODE 0GAIN 0 (HIGHAMPL)HIGHAMPL 0 (AGC)AGC 0CUR0 (BUFCUR)BUFCUR 0 (2CYCLES)TIMEOUT

TIMEOUT=2CYCLES, MODE=XTAL

Description

LFXO Control Register

Fields

TUNING

LFXO Internal Capacitor Array Tuning Value
MODE

LFXO Mode

0 (XTAL): 32768 Hz crystal oscillator

1 (BUFEXTCLK): An AC coupled buffer is coupled in series with LFXTAL_N pin, suitable for external sinus wave (32768 Hz).

2 (DIGEXTCLK): Digital external clock on LFXTAL_N pin. Oscillator is effectively bypassed.
GAIN

LFXO Startup Gain
HIGHAMPL

LFXO High XTAL Oscillation Amplitude Enable
AGC

LFXO AGC Enable
CUR

LFXO Current Trim
BUFCUR

LFXO Buffer Bias Current
TIMEOUT

LFXO Timeout

0 (2CYCLES): Timeout period of 2 cycles

1 (256CYCLES): Timeout period of 256 cycles

2 (1KCYCLES): Timeout period of 1024 cycles

3 (2KCYCLES): Timeout period of 2048 cycles

4 (4KCYCLES): Timeout period of 4096 cycles

5 (8KCYCLES): Timeout period of 8192 cycles

6 (16KCYCLES): Timeout period of 16384 cycles

7 (32KCYCLES): Timeout period of 32768 cycles

Links

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Register License

  • SPDX-License-Identifier: Zlib
  • The licensor of this software is Silicon Laboratories Inc.
  • This software is provided ‘as-is’, without any express or implied
  • warranty. In no event will the authors be held liable for any damages
  • arising from the use of this software.
  • Permission is granted to anyone to use this software for any purpose,
  • including commercial applications, and to alter it and redistribute it
  • freely, subject to the following restrictions:
    1. The origin of this software must not be misrepresented; you must not
  • claim that you wrote the original software. If you use this software
  • in a product, an acknowledgment in the product documentation would be
  • appreciated but is not required.
    1. Altered source versions must be plainly marked as such, and must not be
  • misrepresented as being the original software.
    1. This notice may not be removed or altered from any source distribution.
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Register Reference

https://github.com/cmsis-svd/cmsis-svd-data