C8051F85X86X Datasheet, PDF (276/290 Pages) Silicon Laboratories – Low-Cost 8-bit MCU Family with up to 8 kB of Flash

C8051F85x/86x
Table 26.1. Timer Settings for Standard Baud Rates Using The Internal 24.5 MHz Oscillator
Frequency: 49 MHz
Target
Baud Rate
(bps)
230400
Baud Rate Oscillator Timer Clock
% Error
Divide
Source
Factor
–0.32%
106
SYSCLK
SCA1–SCA0
(pre-scale
select)¹
XX²
115200
–0.32%
212
SYSCLK
XX
57600
0.15%
426
SYSCLK
XX
28800
–0.32%
848
SYSCLK/4
01
14400
0.15%
1704 SYSCLK/12
00
9600
–0.32%
2544 SYSCLK/12
00
2400
–0.32%
10176 SYSCLK/48
10
1200
0.15%
20448 SYSCLK/48
10
Notes:
1. SCA1–SCA0 and T1M bit definitions can be found in Timer1 chapter.
2. X = Don’t care.
T1M^{1 Timer 1}
Reload
Value (hex)
1
0xCB
1
0x96
1
0x2B
0
0x96
0
0xB9
0
0x96
0
0x96
0
0x2B
Preliminary Rev 0.6
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