C8051F970-A-GM Datasheet, PDF (251/454 Pages) Silicon Laboratories – Low Power Capacitive Sensing MCU with up to 32 kB of Flash

C8051F97x
Register 24.5. OSCICN: High Frequency Oscillator Control
Bit
7
6
5
4
3
2
1
0
Name IOSCEN IFRDY
Reserved
Type
RW
R
RW
Reset
0
0
X
X
X
X
X
X
SFR Page = 0x0; SFR Address: 0xB2
Bit
Name
Function
7
IOSCEN High Frequency Oscillator Enable.
0: High Frequency Oscillator disabled.
1: High Frequency Oscillator enabled.
6
IFRDY Internal Oscillator Frequency Ready Flag.
0: High Frequency Oscillator is not running at its programmed frequency.
1: High Frequency Oscillator is running at its programmed frequency.
5:0
Reserved Must write reset value.
Notes:
1. Read-modify-write operations such as ORL and ANL must be used to set or clear the enable bit of this register.
2. OSCBIAS (REG0CN.4) must be set to 1 before enabling the High Frequency Oscillator.
252
Rev 1.0