C8051F045 View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
Manufacturer
C8051F045 Datasheet PDF : 328 Pages
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C8051F040/1/2/3/4/5/6/7
Table 22.3. Timer Settings for Standard Baud Rates Using an External
22.1184 MHz Oscillator
Frequency: 22.1184 MHz
Target Baud Rate Oscillator Timer Clock SCA1-SCA0 T1M* Timer 1
Baud Rate % Error
Divide
Source
(pre-scale
Reload
(bps)
Factor
select)*
Value (hex)
230400
0.00%
96
SYSCLK
XX
1
0xD0
115200
0.00%
192
SYSCLK
XX
1
0xA0
57600
0.00%
384
SYSCLK
XX
1
0x40
28800
0.00%
768
SYSCLK / 12
00
0
0xE0
14400
0.00%
1536 SYSCLK / 12
00
0
0xC0
9600
0.00%
2304 SYSCLK / 12
00
0
0xA0
2400
0.00%
9216 SYSCLK / 48
10
0
0xA0
1200
0.00%
18432 SYSCLK / 48
10
0
0x40
230400
0.00%
96
EXTCLK / 8
11
0
0xFA
115200
0.00%
192
EXTCLK / 8
11
0
0xF4
57600
0.00%
384
EXTCLK / 8
11
0
0xE8
28800
0.00%
768
EXTCLK / 8
11
0
0xD0
14400
0.00%
1536
EXTCLK / 8
11
0
0xA0
9600
0.00%
2304
EXTCLK / 8
11
0
0x70
X = Don’t care
*Note: SCA1-SCA0 and T1M bit definitions can be found in Section 23.1.
Table 22.4. Timer Settings for Standard Baud Rates Using an External 18.432 MHz
Oscillator
Frequency: 18.432 MHz
Target Baud Rate Oscillator Timer Clock SCA1-SCA0 T1M* Timer 1
Baud Rate % Error
Divide
Source
(pre-scale
Reload
(bps)
Factor
select)*
Value
(hex)
230400
0.00%
80
SYSCLK
XX
1
0xD8
115200
0.00%
160
SYSCLK
XX
1
0xB0
57600
0.00%
320
SYSCLK
XX
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
Rev. 1.5
285
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