C8051F960-B-GM Datasheet, PDF (409/492 Pages) Silicon Laboratories – Ultra Low Power 128K, LCD MCU Family

C8051F96x
Table 29.1. Timer Settings for Standard Baud Rates
Using The Internal 24.5 MHz Oscillator
Frequency: 24.5 MHz
Target Baud Rate Oscilla- Timer Clock
Baud Rate % Error tor Divide Source
(bps)
Factor
SCA1–SCA0
(pre-scale
select)¹
230400
–0.32%
106
SYSCLK
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 Section 32.1.
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
Table 29.2. Timer Settings for Standard Baud Rates
Using an External 22.1184 MHz Oscillator
Target
Baud Rate
(bps)
230400
115200
57600
28800
14400
9600
2400
1200
Frequency: 22.1184 MHz
Baud Rate Oscilla- Timer Clock
% Error tor Divide Source
Factor
SCA1–SCA0
(pre-scale
select)¹
0.00%
96
SYSCLK
XX²
0.00%
192
SYSCLK
XX
0.00%
384
SYSCLK
XX
0.00%
768 SYSCLK / 12
00
0.00%
1536 SYSCLK / 12
00
0.00%
2304 SYSCLK / 12
00
0.00%
9216 SYSCLK / 48
10
0.00%
18432 SYSCLK / 48
10
T1M^{1 Timer 1}
Reload
Value (hex)
1
0xD0
1
0xA0
1
0x40
0
0xE0
0
0xC0
0
0xA0
0
0xA0
0
0x40
Rev. 1.0
409