DTMFDECODER-RD Silicon Laboratories Inc, DTMFDECODER-RD Datasheet - Page 140

• Manufacturer Part Number: DTMFDECODER-RD
• Description: KIT REF DESIGN DTMF DECODER
• Manufacturer: Silicon Laboratories Inc

Specifications of DTMFDECODER-RD

• Mfg Application Notes: DTMF Decoder Ref Design AppNote
• Main Purpose: Telecom, DTMF Decoder
• Embedded: No
• Utilized Ic / Part: C8051F300
• Primary Attributes: 8kHz Sampling Rate ADC
• Secondary Attributes: 16 Goertzel Filters
• Processor To Be Evaluated: C8051F300
• Interface Type: RS-232
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 336-1283

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