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CC2500-RTR1 数据表(PDF) 80 Page - Texas Instruments |
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CC2500-RTR1 数据表(HTML) 80 Page - Texas Instruments |
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80 / 96 page  CC2500 SWRS040C Page 80 of 89 0x25: FSCAL1 – Frequency Synthesizer Calibration Bit Field Name Reset R/W Description 7:6 Reserved R0 5:0 FSCAL1[5:0] 32 (0x20) R/W Frequency synthesizer calibration result register. Capacitor array setting for VCO coarse tuning. Fast frequency hopping without calibration for each hop can be done by calibrating upfront for each frequency and saving the resulting FSCAL3, FSCAL2 and FSCAL1 register values. Between each frequency hop, calibration can be replaced by writing the FSCAL3, FSCAL2 and FSCAL1 register values corresponding to the next RF frequency. 0x26: FSCAL0 – Frequency Synthesizer Calibration Bit Field Name Reset R/W Description 7 Reserved R0 6:0 FSCAL0[6:0] 13 (0x0D) R/W Frequency synthesizer calibration control. The value to use in this register is given by the SmartRF Studio software [5]. 0x27: RCCTRL1 – RC Oscillator Configuration Bit Field Name Reset R/W Description 7 Reserved 0 R0 6:0 RCCTRL1[6:0] 65 (0x41) R/W RC oscillator configuration. 0x28: RCCTRL0 – RC Oscillator Configuration Bit Field Name Reset R/W Description 7 Reserved 0 R0 6:0 RCCTRL0[6:0] 0 (0x00) R/W RC oscillator configuration. 32.2 Configuration Register Details – Registers that Lose Programming in SLEEP State 0x29: FSTEST – Frequency Synthesizer Calibration Control Bit Field Name Reset R/W Description 7:0 FSTEST[7:0] 89 (0x59) R/W For test only. Do not write to this register. 0x2A: PTEST – Production Test Bit Field Name Reset R/W Description 7:0 PTEST[7:0] 127 (0x7F) R/W Writing 0xBF to this register makes the on-chip temperature sensor available in the IDLE state. The default 0x7F value should then be written back before leaving the IDLE state. Other use of this register is for test only. |
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