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Chapter 9 Asynchronous Serial Interface
9
Table 9-3 Example of Setting the BRGC Register When the Baud Rate Generator for UART Is Used
FCH
F9H
E9H
D9H
C9H
B9H
A9H
99H
89H
92H
84H
2.44
2.34
2.34
2.34
2.34
2.34
2.34
2.34
2.34
0.00
2.34
Oscillation frequency (fxx)
or external clock input (fx) 12 MHz
Internal system clock (fCLK)
Baud rate [bps] Baud rate
error (%)
BRGC
value
6 MHz
FBH
F8H
E8H
D8H
C8H
B8H
A8H
98H
88H
2.27
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
11.0592 MHz
Baud rate
error (%)
BRGC
value
5.5296 MHz
FAH
F7H
E7H
D7H
C7H
B7H
A7H
97H
87H
84H
83H
0.89
1.73
1.73
1.73
1.73
1.73
1.73
1.73
1.73
0.00
1.73
10.0 MHz
Baud rate
error (%)
BRGC
value
5.0 MHz
FAH
F7H
E7H
D7H
C7H
B7H
A7H
97H
87H
84H
83H
0.83
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
1.70
0.00
9.8304 MHz
Baud rate
error (%)
BRGC
value
4.9152 MHz
FBH
F7H
EBH
DBH
CBH
BBH
ABH
9BH
8BH
85H
82H
0.00
2.27
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
7.3728 MHz
Baud rate
error (%)
BRGC
value
3.6864 MHz
75
110
150
300
600
1200
2400
4800
9600
19200
31250
38400