RM0453 Rev 1 7/1461
RM0453 Contents
43
5.10.12 Sub-GHz radio generic synchronization word control register 3
(SUBGHZ_GSYNCR3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
5.10.13 Sub-GHz radio generic synchronization word control register 2
(SUBGHZ_GSYNCR2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
5.10.14 Sub-GHz radio generic synchronization word control register 1
(SUBGHZ_GSYNCR1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
5.10.15 Sub-GHz radio generic synchronization word control register 0
(SUBGHZ_GSYNCR0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
5.10.16 Sub-GHz radio LoRa synchronization word MSB register
(SUBGHZ_LSYNCRH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
5.10.17 Sub-GHz radio LoRa synchronization word LSB register
(SUBGHZ_LSYNCRL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
5.10.18 Sub-GHz radio random number register 3 (SUBGHZ_RNGR3) . . . . . 213
5.10.19 Sub-GHz radio random number register 2 (SUBGHZ_RNGR2) . . . . . 213
5.10.20 Sub-GHz radio random number register 1 (SUBGHZ_RNGR1) . . . . . 213
5.10.21 Sub-GHz radio random number register 0 (SUBGHZ_RNGR0) . . . . . 213
5.10.22 Sub-GHz radio receiver gain control register (SUBGHZ_RXGAINCR) 214
5.10.23 Sub-GHz radio PA over current protection register
(SUBGHZ_PAOCPR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
5.10.24 Sub-GHz radio HSE32 OSC_IN capacitor trim register
(SUBGHZ_HSEINTRIMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
5.10.25 Sub-GHz radio HSE32 OSC_OUT capacitor trim register
(SUBGHZ_HSEOUTTRIMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
5.10.26 Sub-GHz radio SMPS control 0 register (SUBGHZ_SMPSC0R) . . . . 215
5.10.27 Sub-GHz radio power control register (SUBGHZ_PCR) . . . . . . . . . . . 216
5.10.28 Sub-GHz radio SMPS control 2 register (SUBGHZ_SMPSC2R) . . . . 216
5.10.29 Sub-GHz radio register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
6 Power control (PWR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
6.1 Power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
6.1.1 Independent analog peripherals supply . . . . . . . . . . . . . . . . . . . . . . . . 222
6.1.2 Battery Backup domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
6.1.3 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
6.1.4 Dynamic voltage scaling management . . . . . . . . . . . . . . . . . . . . . . . . 224
6.2 Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
6.2.1 Power-on reset (POR)/power-down reset (PDR)
/Brownout reset (BOR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
6.2.2 Programmable voltage detector (PVD) . . . . . . . . . . . . . . . . . . . . . . . . 226
6.2.3 Peripheral voltage monitoring (PVM) . . . . . . . . . . . . . . . . . . . . . . . . . . 227
6.2.4 Radio end of life (EOL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
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