LPR2430A Datasheet, PDF (3/5 Pages) Murata Manufacturing Co., Ltd. – 802.15.4 Transceiver Module

L P R 2 4 3 0 A B lo c k D ia g r a m
GND
1
A C T IV IT Y
2
L IN K
3
G P IO 0 (A D C _ R E F ) 4
R A D IO _ T X D
5
R A D IO _ R X D
6
/H O S T _ C T S (G P IO 4 ) 7
/H O S T _ R T S (G P IO 5 ) 8
PW M 0
9
G P IO 2 (P W M 1 )
10
G P IO 1
11
G P IO 3 (R S 4 8 5 _ E N ) 1 2
P W M 1 (G P IO 2 )
13
VCC
14
GND
15
F ilte r
F ilte r
R eg
+ 3 .3 V
3 2 .7 6 8 k H z
32 M H z
C C 2430
8 0 2 .1 5 .4
R a d io a n d
M ic r o c o n tr o lle r
C h ip A n te n n a
T X /R X
C o m b in e r
28
29
30
16 17 18 19 20 21 22 23 24 25 26 27
Figure 1
LPR2430A Hardware
The major hardware component of the LPR2430A is
the CC2430 IEEE 802.15.4 transceiver with an inte-
grated 8051 microcontroller. The LPR2430A operates
in the frequency band of 2405 to 2475 MHz at a nomi-
nal radiated power of 0 dBm. The LPR2430A includes
a chip antenna and requires no external antenna con-
nection.
Two crystals are provided to operate the CC2430, a
32 MHz crystal for normal operation and a 32.768 kHz
crystal for precision sleep mode operation.
The LPR2430A provides a variety of application hard-
ware interfaces including a UART interface, three
11-bit ADC inputs, two PWM (DAC) outputs, and six
general purpose digital I/O ports.
LPR2430A Firmware
The main firmware components in the LPR2430A in-
clude the 802.15.4 Media Access Control (MAC) layer
and the CNL V2.0 Networking Layer. CNL V2.0 sup-
ports up to 63 remotes. Network topologies include
point-to-point, point-to-multipoint and peer-to-peer.
CNL employs one-hop relay forwarding to mitigate
network transmission problems such as multipath fad-
ing. CNL includes provisions for low-power sleep
mode operation with periodic wakeup and report. The
CNL Application Programming Interface (API) pro-
vides an easy-to-use, flexible set of application com-
mands and functions. The API includes support for
send/receive serial data, read/write GPIO, read ADC
inputs, write PWM outputs and module configuration
services. In addition, CNL supports analog and digital
I/O binding, which maps an ADC measurement and
the states of two digital inputs on one LPR2430A to a
PWM output and two digital outputs on another
LPR2430A. See the LPR2430 Series Integration
Guide for complete details of the CNL API.
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©2009 by RF Monolithics, Inc.
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LPR2430A - 06/19/09