Table 54. Baud Rate Deviation Error Calculation - Ck_Usart = 40 Mhz; Table 55. Baud Rate Deviation Error Calculation - Ck_Usart = 48 Mhz; Table 56. Baud Rate Deviation Error Calculation - Ck_Usart = 60 Mhz - Holtek HT32F54231 User Manual

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F54231/HT32F54241/HT32F54243/HT32F54253
Table 54. Baud Rate Deviation Error Calculation – CK_USART = 40 MHz
Baud Rate
No.
1
2
3
4
5
6
7
8
9
10
Table 55. Baud Rate Deviation Error Calculation – CK_USART = 48 MHz
Baud Rate
No.
1
2
3
4
5
6
7
8
9
10
Table 56. Baud Rate Deviation Error Calculation – CK_USART = 60 MHz
Baud Rate
No.
1
2
3
4
5
6
7
8
9
10
Rev. 1.00
Kbps Actual
2.4 2.4
9.6 9.6
19.2 19.2
57.6 57.6
115.2 115.3
230.4 229.9
460.8 459.8
921.6 930.2
2250 2222.2
3000 —
Kbps Actual
2.4 2.4
9.6 9.6
19.2 19.2
57.6 57.6
115.2 115.1
230.4 230.8
460.8 461.5
921.6 923.1
2250 2285.7
3000 3000.0
Kbps Actual
2.4 2.4
9.6 9.6
19.2 19.2
57.6 57.6
115.2 115.2
230.4 230.8
460.8 461.5
921.6 923.1
2250 2222.2
3000 3000.0
471 of 576
CK_USART = 40 MHz
Deviation
BRD
Error Rate
16667
4167
2083
694
347
174
87
43
18
—
CK_USART = 48 MHz
Deviation
BRD
Error Rate
20000
5000
2500
833
417
208
104
52
21
16
CK_USART = 60 MHz
Deviation
BRD
Error Rate
25000
6250
3125
1042
521
260
130
65
27
20
January 28, 2022
0.00%
-0.01%
0.02%
0.06%
0.06%
-0.22%
-0.22%
0.94%
-1.23%
—
0.00%
0.00%
0.00%
0.04%
-0.08%
0.16%
0.16%
0.16%
1.59%
0.00%
0.00%
0.00%
0.00%
-0.03%
-0.03%
0.16%
0.16%
0.16%
-1.23%
0.00%