Manual

RF22
Version: 0.1 Date: 12/23/2008
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1 bufovr Output Buffer Enable Override.
If set to 1 then the enbuf bit controls the output buffer.
0: output buffer is controlled by the state machine
1: output buffer is controlled by the enbuf bit
0 enbuf Output Buffer Enable.
This bit is active only if the bufovr bit is set to 1.
Register 63h. RC Oscillator Coarse Calibration/Override
Bit D7 D6 D5 D4 D3 D2 D1 D0
Name rccov rcc[6:0]
Type R/W R/W
Reset value = 00000000
Bit Name Function
7 rccov RC Oscillator Coarse Calibration Override.
When rccov = 0 the internal Coarse Calibration results may be viewed by reading the rcccal
register. When rccov = 1 the Coarse results may be overridden externally through the SPI by
writing to the rcccal register.
6:0 rcc[6:0] RC Oscillator Coarse Calibration Override Value/Results.
Register 64h. RC Oscillator Fine Calibration/Override
Bit D7 D6 D5 D4 D3 D2 D1 D0
Name rcfov rcf[6:0]
Type R/W R/W
Reset value = 00000000
Bit Name Function
7 rcfov RC Oscillator Fine Calibration Override.
When rcfov = 0 the internal Fine Calibration results may be viewed by reading the rcfcal
register. When rcfov = 1 the Fine results may be overridden externally through the SPI by
writing to the rcfcal register.
6:0 rcf[6:0] RC Oscillator Fine Calibration Override Value/Results.
Register 65h. LDO Control Override
Bit D7 D6 D5 D4 D3 D2 D1 D0
Name enspor enbias envcoldo enifldo enrfldo enpllldo endigldo endigpwdn
Type R/W R/W R/W R/W R/W R/W R/W R/W
Reset value = 10000001
Bit Name Function
7 enspor Smart POR Enable.
6 enbias Bias Enable.
5 envcoldo VCO LDO Enable.
4 enifldo IF LDO Enable.
3 enrfldo RF LDO Enable.
2 enpllldo PLL LDO Enable.
1 endigldo Digital LDO Enable.
0 endigpwdn Digital Power Domain Powerdown Enable in Idle Mode.
Register 66h. LDO Level Settings
Bit D7 D6 D5 D4 D3 D2 D1 D0
Name enovr enxtal ents enrc32 Reserved diglvl
Type R/W R/W R/W R/W R R/W
Reset value = 00000011