DTMFDECODER-RD Silicon Laboratories Inc, DTMFDECODER-RD Datasheet - Page 20
![KIT REF DESIGN DTMF DECODER](/photos/9/6/90685/dtmfdecoder-rd_sml.jpg)
DTMFDECODER-RD
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
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C8051F300/1/2/3/4/5
Perhaps the most unique Port I/O enhancement is the Digital Crossbar. This is essentially a digital switch-
ing network that allows mapping of internal digital system resources to Port I/O pins (See Figure 1.7). On-
chip counter/timers, serial buses, HW interrupts, comparator output, and other digital signals in the control-
ler can be configured to appear on the Port I/O pins specified in the Crossbar Control registers. This allows
the user to select the exact mix of general purpose Port I/O and digital resources needed for the particular
application.
1.5.
The C8051F300/1/2/3/4/5 Family includes an SMBus/I
baud rate configuration. Each of the serial buses is fully implemented in hardware and makes extensive
use of the CIP-51's interrupts, thus requiring very little CPU intervention.
20
Highest
Priority
Lowest
Priority
Serial Ports
SYSCLK
Outputs
SMBus
T0, T1
UART
CP0
PCA
Port Latch
2
2
2
4
2
Figure 1.7. Digital Crossbar Diagram
P0
(P0.0-P0.7)
8
Rev. 2.9
XBR2 Registers
XBR0, XBR1,
Crossbar
Decoder
2
Priority
Digital
C interface and a full-duplex UART with enhanced
8
P0MDIN Registers
P0MDOUT,
Cells
I/O
P0
P0.0
P0.7
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