C8051F040DK Silicon Laboratories Inc, C8051F040DK Datasheet - Page 284

• Manufacturer Part Number: C8051F040DK
• Description: DEV KIT FOR F040/F041/F042/F043
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F040DK

• Contents: Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
• Processor To Be Evaluated: C8051F04x
• Interface Type: USB
• Silicon Manufacturer: Silicon Labs
• Core Architecture: 8051
• Silicon Core Number: C8051F040
• Silicon Family Name: C8051F04x
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: Silicon Laboratories C8051 F040, 041, 042, 043 MCUs
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1205

C8051F040/1/2/3/4/5/6/7
284
Table 22.1. Timer Settings for Standard Baud Rates Using the Internal 24.5 MHz
Table 22.2. Timer Settings for Standard Baud Rates Using an External 25.0 MHz
Baud Rate
Baud Rate
230400
115200
Target
230400
115200
57600
28800
14400
57600
28800
14400
Target
57600
28800
14400
(bps)
9600
2400
1200
9600
(bps)
9600
2400
1200
X = Don’t care
*Note: SCA1-SCA0 and T1M bit definitions can be found in
X = Don’t care
*Note: SCA1-SCA0 and T1M bit definitions can be found in
Baud Rate
Baud Rate
% Error
% Error
-0.47%
-0.01%
-0.01%
-0.01%
-0.47%
-0.47%
0.45%
0.45%
0.15%
0.45%
0.45%
0.15%
-0.32%
-0.32%
-0.32%
-0.32%
-0.32%
0.15%
0.15%
0.15%
Oscillator
Oscillator
Divide
Factor
10464
20832
Factor
Divide
10176
20448
1736
2608
1744
2608
1704
2544
108
218
434
872
432
864
106
212
426
848
Frequency: 24.5 MHz
Frequency: 25.0 MHz
Oscillator
Oscillator
Rev. 1.5
SYSCLK / 48
SYSCLK / 48
Timer Clock
SYSCLK / 4
SYSCLK / 4
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
SYSCLK / 12
SYSCLK / 12
SYSCLK / 48
SYSCLK / 48
Timer Clock
SYSCLK / 4
SYSCLK
SYSCLK
SYSCLK
Source
SYSCLK
SYSCLK
SYSCLK
Source
SCA1-SCA0
SCA1-SCA0
(pre-scale
(pre-scale
select)
select)
XX
XX
XX
01
01
11
10
10
11
11
11
11
XX
XX
XX
01
00
00
10
10
Section 23.1
*
Section 23.1
*
T1M
T1M
1
1
1
0
0
0
0
0
1
0
1
1
0
0
0
0
0
0
0
0
*
*
.
.
Value (hex)
Timer 1
Reload
Timer 1
Reload
Value
0xCB
(hex)
0x2B
0xB9
0x2B
0x96
0x96
0x96
0x96
0xCA
0x5D
0xCA
0x5D
0xE5
0x93
0x27
0x93
0x27
0x93
0x27
0x93