C8051F300_08 Datasheet, PDF (140/179 Pages) Silicon Laboratories – Mixed Signal ISP Flash MCU Family

C8051F300/1/2/3/4/5
Table 14.4. Timer Settings for Standard Baud Rates Using an External 18.432 MHz
Oscillator
Frequency: 18.432 MHz
Target
Baud Rate
(bps)
Baud Rate Oscillator Timer Clock
% Error Divide
Source
Factor
SCA1–SCA0
(pre-scale
select)¹
T1M^{1 Timer 1}
Reload
Value (hex)
230400
0.00%
80
SYSCLK
XX²
1
0xD8
115200
0.00%
160
SYSCLK
XX²
1
0xB0
57600
0.00%
320
SYSCLK
XX²
1
0x60
28800
0.00%
640
SYSCLK / 4
01
0
0xB0
14400
0.00%
1280 SYSCLK / 4
01
0
0x60
9600
0.00%
1920 SYSCLK / 12
00
0
0xB0
2400
0.00%
7680 SYSCLK / 48
10
0
0xB0
1200
0.00%
15360 SYSCLK / 48
10
0
0x60
230400
0.00%
80
EXTCLK / 8
11
0
0xFB
115200
0.00%
160
EXTCLK / 8
11
0
0xF6
57600
0.00%
320
EXTCLK / 8
11
0
0xEC
28800
0.00%
640
EXTCLK / 8
11
0
0xD8
14400
0.00%
1280 EXTCLK / 8
11
0
0xB0
9600
0.00%
1920 EXTCLK / 8
11
0
0x88
Notes:
1. SCA1–SCA0 and T1M bit definitions can be found in Section 15.1.
2. X = Don’t care
140
Rev. 2.9