Rng Functional Description; Rng Block Diagram; Rng Internal Signals; Table 129. Rng Internal Input/Output Signals - ST STM32WL5 Series Reference Manual

RM0453
22.3

RNG functional description

22.3.1

RNG block diagram

Figure 98
rng_it
rng_hclk
rng_clk
22.3.2

RNG internal signals

Table 129
at the STM32 product level (on pads).
Signal name
shows the RNG block diagram.

Figure 98. RNG block diagram

Banked Registers
control
data
AHB
status
interface
AHB clock domain
RNG clock domain
describes a list of useful-to-know internal signals available at the RNG level, not

Table 129. RNG internal input/output signals

Signal type
rng_it Digital output
rng_hclk Digital input
rng_clk Digital input
True random number generator (RNG)
CONDRST
RNG_CR
RNG_DR
RNG_SR
Fault detection
Clock checker
Health tests
en_osc
RNG global interrupt request
AHB clock
RNG dedicated clock, asynchronous to rng_hclk
RM0453 Rev 1
True RNG
Conditioning logic
1-bit
Post-processing (optional)
Sampling (x N) + XOR
Analog Analog Analog
...
noise noise noise
source 1 source 2 source N
Analog noise source
Description
MSv42098V2
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