Table 339. Noise Detection From Sampled Data; Figure 535. Data Sampling When Oversampling By 16; Figure 536. Data Sampling When Oversampling By 8 - ST STM32G4 Series Reference Manual

RM0440
RX line
Sample clock
RX line
Sample
clock (x8)
Universal synchronous/asynchronous receiver transmitter (USART/UART)

Figure 535. Data sampling when oversampling by 16

1 2 3

Figure 536. Data sampling when oversampling by 8

1 2

Table 339. Noise detection from sampled data

Sampled value
000
001
010
011
100
101
110
111
sampled values
4 5 6 7 8 9
7/16
One bit time
sampled values
3 4
3/8
One bit time
NE status
0
1
1
1
1
1
1
0
RM0440 Rev 1
10 11 12 13 14
6/16
7/16
5 6 7
2/8
3/8
Received bit value
15 16
MSv31152V1
8
MSv31153V1
0
0
0
1
0
1
1
1
1569/2083
1692