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MRF49XA
FIGURE 1-1:
Antenna
FUNCTIONAL NODE BLOCK DIAGRAM
MRF49XA
RF Block
Matching
Circuitry
RFP
RFN
PA/LNA
and
PLL/CLK
Block
Baseband
Amplifier/
Filter/
Limiter
Data
Processing
Unit
MCU
Interface
SPI
Signals
Other
Handshaking
Signals
Power
Management
Memory
10 MHz
FIGURE 1-2:
MICROCONTROLLER TO MRF49XA INTERFACE
__
PIC? MCU
INT
I/O/SS
SDO
SDI
SCK
I/O
I/O
I/O
OSC1
I/O
* Implies optional signals.
MRF49XA
IRO
CS
SDI
SDO
SCK
INT/DIO*
RESET*
FSK/DATA/FSEL*
CLKOUT*
RCLKOUT/FCAP/FINT*
DS70590C-page 8
Preliminary
? 2009-2011 Microchip Technology Inc.
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