DTMFDECODER-RD Silicon Laboratories Inc, DTMFDECODER-RD Datasheet - Page 54

• 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
54
Bits7–6: UNUSED. Read = 00b, Write = don’t care.
Bits6–4: CMX0N1–CMX0N0: Comparator0 Negative Input MUX Select.
Bits3–2: UNUSED. Read = 00b, Write = don’t care.
Bits1–0: CMX0P1–CMX0P0: Comparator0 Positive Input MUX Select.
Bits7–2: UNUSED. Read = 000000b, Write = don’t care.
Bits1–0: CP0MD1–CP0MD0: Comparator0 Mode Select.
R/W
Bit7
R/W
Bit7
—
—
These bits select which Port pin is used as the Comparator0 negative input.
These bits select which Port pin is used as the Comparator0 positive input.
These bits select the response time for Comparator0.
CMX0N1 CMX0N0
CMX0P1 CMX0P0
Mode
SFR Definition 7.3.
SFR Definition 7.2.
R/W
Bit6
0
0
1
1
0
0
1
1
—
R/W
Bit6
0
1
2
3
—
CMX0N1 CMX0N0
CP0MD1
R/W
0
1
0
1
0
1
0
1
Bit5
R/W
Bit5
0
0
1
1
—
Negative Input
Positive Input
CP0MD0
R/W
Bit4
R/W
Bit4
CPT0MD: Comparator0 Mode Selection
—
0
1
0
1
CPT0MX: Comparator0 MUX Selection
P0.1
P0.3
P0.5
P0.7
P0.0
P0.2
P0.4
P0.6
CP0 Response Time (TYP)
Lowest Power Consumption
Rev. 2.9
R/W
Bit3
—
R/W
Fastest Response Time
Bit3
—
R/W
Bit2
—
—
—
R/W
Bit2
—
CMX0P1 CMX0P0 00000000
CP0MD1 CP0MD0 00000010
R/W
Bit1
R/W
Bit1
R/W
Bit0
R/W
Bit0
SFR Address:
Reset Value
SFR Address:
0x9F
Reset Value
0x9D