CC2500RGPR Datasheet, PDF (80/99 Pages) Texas Instruments – Low-Cost Low-Power 2.4 GHz RF Transceiver

CC2500
Bit Field Name
7:6 Reserved
5:0 FSCAL1[5:0]
0x25: FSCAL1 – Frequency Synthesizer Calibration
Reset R/W Description
R0
32
R/W Frequency synthesizer calibration result register. Capacitor array
(0x20)
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.
Bit Field Name
7 Reserved
6:0 FSCAL0[6:0]
0x26: FSCAL0 – Frequency Synthesizer Calibration
Reset
R/W Description
R0
13 (0x0D) R/W Frequency synthesizer calibration control. The value to use in
this register is given by the SmartRF^ Studio software [5].
Bit Field Name
7 Reserved
6:0 RCCTRL1[6:0]
0x27: RCCTRL1 – RC Oscillator Configuration
Reset R/W Description
0
R0
65
R/W RC oscillator configuration.
(0x41)
Bit Field Name
7 Reserved
6:0 RCCTRL0[6:0]
0x28: RCCTRL0 – RC Oscillator Configuration
Reset R/W Description
0
R0
0
R/W RC oscillator configuration.
(0x00)
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
R/W For test only. Do not write to this register.
(0x59)
Bit Field Name
7:0 PTEST[7:0]
0x2A: PTEST – Production Test
Reset R/W Description
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.
SWRS040C
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