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CC1050 Datasheet(PDF) 34 Page - Texas Instruments |
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CC1050 Datasheet(HTML) 34 Page - Texas Instruments |
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34 / 39 page  CC1050 SWRS044 Page 34 of 40 LOCK Register (0Dh) REGISTER NAME Default value Active Description LOCK[7:4] LOCK_SELECT[3:0] 0000 - Selection of signals to CHP_OUT (LOCK) pin 0000 : Normal, pin can be used as CHP_OUT 0001 : LOCK_CONTINUOUS (active high) 0010 : LOCK_INSTANT (active high) 0011 : ALARM_H (active high) 0100 : ALARM_L (active high) 0101 : CAL_COMPLETE (active high) 0110 : Not used 0111 : REFERENCE_DIVIDER Output 1000 : TX_PDB (active high, activates external PA when TX_PD=0) 1001 : Not used 1010 : Not used 1011 : Not used 1100 : Not used 1101 : Not used 1110 : N_DIVIDER Output 1111 : F_COMP LOCK[3] PLL_LOCK_ ACCURACY 0 - 0 : Sets Lock Threshold = 127, Reset Lock Threshold = 111. Corresponds to a worst case accuracy of 0.7% 1 : Sets Lock Threshold = 31, Reset Lock Threshold =15. Corresponds to a worst case accuracy of 2.8% LOCK[2] PLL_LOCK_ LENGTH 0 - 0 : Normal PLL lock window 1 : Not used LOCK[1] LOCK_INSTANT - - Status bit from Lock Detector LOCK[0] LOCK_CONTINUOUS - - Status bit from Lock Detector CAL Register (0Eh) REGISTER NAME Default value Active Description CAL[7] CAL_START 0 ↑ ↑ 1 : Calibration started 0 : Calibration inactive CAL_START must be set to 0 after calibration is done CAL[6] CAL_DUAL 0 H 1 : Store calibration in both A and B 0 : Store calibration in A or B defined by MAIN[6] CAL[5] CAL_WAIT 0 H 1 : Normal Calibration Wait Time 0 : Half Calibration Wait Time The calibration time is proportional to the internal reference frequency. 2 MHz reference frequency gives 14 ms wait time. CAL[4] CAL_CURRENT 0 H 1 : Calibration Current Doubled 0 : Normal Calibration Current CAL[3] CAL_COMPLETE 0 H Status bit defining that calibration is complete CAL[2:0] CAL_ITERATE 101 H Iteration start value for calibration DAC 000 - 101: Not used 110 : Normal start value 111 : Not used |
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