Single-Chip Low Power RF Transceiver for Narrowband Systems ...

26.1. CC1021 Register Overview
CC1021
ADDRESS Byte Name Description
00h MAIN Main control register 01h INTERFACE Interface control
register
02h RESET Digital module reset register
03h SEQUENCING Automatic power-up sequencing control register
04h FREQ_2A Frequency register 2A
05h FREQ_1A Frequency register 1A
06h FREQ_0A Frequency register 0A
07h CLOCK_A Clock generation regis ter A
08h FREQ_2B Frequency register 2B
09h FREQ_1B Frequency register 1B
0Ah FREQ_0B Frequency register 0B
0Bh CLOCK_B Clock generation register B
0Ch VCO VCO current control register
0Dh MODEM Modem control register
0Eh DEVIAT ION TX frequency deviation register
0Fh AFC _CONTROL RX AFC control
register
10h FILTER Channel filter / RSSI control register
11h VGA1 VGA control register 1
12h VGA2 VGA control register 2
13h VGA3 VGA control register 3
14h VGA4 VGA control register 4
15h LOCK Lock control register
16h FRONTEND Front end bias current control register
17h ANALOG Analog modules control register
18h BUFF_SWING LO buffer and prescaler swing control register
19h BUFF_CU RRENT LO buffer and prescaler bias current control
register
1Ah PLL_BW PLL loop bandwidth
/ charge pump current control register
1Bh CALIBRATE PLL calibration control register
1Ch PA_POWER Power amplifier output power register
1Dh MATCH Match capacitor array control register, for RX and TX impedance matching
1Eh PHASE_COMP Phase error compensation control register
for LO I/Q
1Fh GAIN_COMP Gain error compensation control
register for mixer I/Q
20h POWERDOWN Power-down control register
21h TEST1 Test register for overriding PLL calibration
22h TEST2 Test register for overriding PLL calibration
23h TEST3 Test register for overriding PLL calibration
24h TEST4 Test register for charge pump
and IF chain testing
25h TEST5 Test register for ADC testing
26h TEST6 Test register for VGA testing
27h TEST7 Test register for VGA testing
40h STATUS Status information register (PLL lock, RSSI, calibration ready, etc.)
41h RESET_DONE Status register for digital module reset
42h RSSI Received signal strength register
43h AFC Average received frequency deviation from IF (can be used for AFC)
44h GAUSS_FILTER Digital FM demodulator register
45h STATUS1 Status of PLL calibration results etc. (test only)
46h STATUS2 Status of PLL calibration results etc. (test only)
47h STATUS3 Status of PLL calibration results etc. (test only)
48h STATUS4 Status of ADC signals (test only)
49h STATUS5 Status of channel filter “I” signal (test only)
4Ah STATUS6 Status of channel filter “Q” signal (test only)
4Bh STATUS7 Status of AGC (test only)
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