Contents RM0453
8/1450 RM0453 Rev 5
5.10.38 Sub-GHz radio random number register 3 (SUBGHZ_RNGR3) . . . . . 218
5.10.39 Sub-GHz radio random number register 2 (SUBGHZ_RNGR2) . . . . . 218
5.10.40 Sub-GHz radio random number register 1 (SUBGHZ_RNGR1) . . . . . 218
5.10.41 Sub-GHz radio random number register 0 (SUBGHZ_RNGR0) . . . . . 219
5.10.42 Sub-GHz radio SD resolution register (SUBGHZ_SDCFG0R) . . . . . . 219
5.10.43 Sub-GHz radio AGC RSSI control register
(SUBGHZ_AGCRSSICTL0R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
5.10.44 Sub-GHz radio receiver gain control register (SUBGHZ_RXGAINCR) 219
5.10.45 Sub-GHz radio AGC reset configuration register
(SUBGHZ_AGCGFORSTCFGR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
5.10.46 Sub-GHz radio AGC reset power threshold register
(SUBGHZ_AGCGFORSTPOWTHR) . . . . . . . . . . . . . . . . . . . . . . . . . . 220
5.10.47 Sub-GHz radio Tx clamp register (SUBGHZ_TXCLAMPR) . . . . . . . . . 220
5.10.48 Sub-GHz radio disable LNA register (REG_ANA_LNA) . . . . . . . . . . . 221
5.10.49 Sub-GHz radio disable mixer register (REG_ANA_MIXER) . . . . . . . . 221
5.10.50 Sub-GHz radio PA over current protection register
(SUBGHZ_PAOCPR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
5.10.51 Sub-GHz radio RTC control register (SUBGHZ_RTCCTLR) . . . . . . . . 221
5.10.52 Sub-GHz radio RTC period MSB register (SUBGHZ_RTCPRDR2) . . 222
5.10.53 Sub-GHz radio RTC period mid-byte register
(SUBGHZ_RTCPRDR1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
5.10.54 Sub-GHz radio RTC period LSB register (SUBGHZ_RTCPRDR0) . . . 222
5.10.55 Sub-GHz radio HSE32 OSC_IN capacitor trim register
(SUBGHZ_HSEINTRIMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
5.10.56 Sub-GHz radio HSE32 OSC_OUT capacitor trim register
(SUBGHZ_HSEOUTTRIMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
5.10.57 Sub-GHz radio SMPS control 0 register (SUBGHZ_SMPSC0R) . . . . 224
5.10.58 Sub-GHz radio power control register (SUBGHZ_PCR) . . . . . . . . . . . 224
5.10.59 Sub-GHz radio regulator drive control register
(SUBGHZ_REGDRVCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
5.10.60 Sub-GHz radio SMPS control 2 register (SUBGHZ_SMPSC2R) . . . . 225
5.10.61 Sub-GHz radio register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
6 Power control (PWR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
6.1 Power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
6.1.1 Independent analog peripherals supply . . . . . . . . . . . . . . . . . . . . . . . . 231
6.1.2 Battery backup domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
6.1.3 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
6.1.4 Dynamic voltage scaling management . . . . . . . . . . . . . . . . . . . . . . . . 233
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