FRPC2 Datasheet, PDF (1/27 Pages) Radiometrix Ltd – Fast Radio Packet Controller

Radiometrix
Issue 1, 30 October 2002
Preliminary
FRPC2
Fast Radio Packet Controller
Modules: FRPC2-433-160: IC+BiM2-433-160
IC’s:
FRPC-000-DIL:
FRPC-000-SO:
FRPC-000-SS:
18 pin DIL IC
18 pin SO IC
20 pin SSOP IC
The RPC2-433-160 is intelligent transceiver
modules, which enable a radio network/link to
be simply implemented between a number of
digital devices. The module combines a UHF
radio transceiver and a 160kbps packet
controller.
FRPC2-433-160
• SAW controlled FM transmitter and superhet receiver
• Reliable 50 meter in-building range, 200m open ground
• Built-in self-test / diagnostics / status LED’s
• Complies with ETSI EN 300 220-3
• Complies with ETSI EN 301 489-3
• Single 5V supply @ < 25mA
• 160kbps half duplex
• Free format packets of 1 - 60 bytes
• Packet framing and error checking are user transparent
• Collision avoidance (listen before transmit)
• Direct interface to 5V CMOS logic
• Power save mode
INTRODUCTION
The FRPC2 is a self-contained plug-on radio port which requires only a simple antenna, 5V supply and
a byte-wide I/O port on a host microcontroller (or bi-directional PC port).
The module provides all the RF circuits and processor intensive low level packet formatting and packet
recovery functions required to inter-connect an number of microcontrollers in a radio network.
A data packet of 1 to 60 bytes downloaded by a Host microcontroller into the FRPC2's packet buffer is
transmitted by the FRPC2’s transceiver and will "appear" in the receive buffer of all the FRPC2's within
radio range.
A data packet received by the FRPC2’s transceiver is decoded, stored in a packet buffer and the Host
microcontroller signalled that a valid packet is waiting to be uploaded.
figure 1: FRPC2 + Host µ-controller
Radiometrix Ltd, FRPC2
page 1