MRF89XAM8A-I Datasheet, PDF (9/140 Pages) Microchip Technology – Ultra Low-Power, Integrated ISM Band Sub-GHz Transceiver

FIGURE 1-2:
MRF89XA TO MICROCONTROLLER INTERFACE (NODE) BLOCK DIAGRAM
Antenna
Saw
Filter
Matching
Circuitry
Block
PARS
RFIO
Loop
Filter
Block
Tank
Circuit
Block
MRF89XA
RF Block
RF
Circuits
Baseband
Amplifier/
Filter/
Limiter
Data
Processing
Unit
Control
Interface
CSDAT
CSCON
SDI
SDO
SCK
IRQ0
IRQ1
Power
Management
Memory
DATA
PLOCK
CLKOUT
PIC^® MCU
I/O
I/O
SDO
SDI
SCK
INT0
INT1
I/O
I/O
OSC1
Crystal Frequency = 12.8 MHz
Note: The interface between the MRF89XA and the MCU depends on the Data mode of operation. For more information, refer to Section 3.8, Data
Processing.