Radiometrix Ltd

i9600 Data Sheet

page 1

The i9600 provides a half duplex link. Provided no two devices attempt to transmit simultaneously no

further restrictions on data transmission need be made, as all transmit timing, valid data identification

and datastream buffering is conducted by the unit. Synchronisation and framing words in the packet

prevent the receiver outputting garbage in the absence of wanted RF signal or presence of interference.

For multiple radio systems (polled networks) a i9600 can be set to 1 of 8 unique addresses.

This unit supports 9600 baud asynchronous data: 1 start bit, 8 data bits, 1 stop bit

To connect to a true RS232 device, inverting level shifters must be used (MAX232 type are ideal, but

simple NPN transistor switches often suffice). With typical microcontrollers and UARTs, direct

connection is usable. Note that TXD has no internal pullup.

Features

•

Operating voltage (temperature):

5V for standard version (-40°C to +85°C)

•

Maximum usage of the range capability of an RF module

•

Adequate preamble to settle data slicer in the receiver.

•

Extra wake up preamble to allow for transmitter power up time requirements

•

Differential Manchester encoding of address, data and checksum

•

Synchronisation codes and checksum to reduce false triggering on noise

•

Suitable to be used with Wide Band FM radio modules

•

Serial modem baud rate at 9600bps (half-duplex)

•

Addressable point-to-point

Applications

•

PDAs, organisers & laptops

•

Handheld / portable terminals

•

EPOS equipment, barcode scanners

•

In-building environmental monitoring and control

•

Remote data acquisition system, data logging

•

Fleet management, vehicle data acquisition

9600 baud Transparent Data Link IC

9600 baud Transparent Data Link IC

9600 baud Transparent Data Link IC

9600 baud Transparent Data Link IC

The i9600 is a 9600baud half-duplex

serial modem controller suitable for use

with wideband receivers, transmitters

and transceivers. It takes care of

preamble, synchronisation, bit

balancing and error checking and

enables a transparent radio data link

to be established between radio devices.

Radiometrix

Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England

Issue 1, 15 May 2006

i9600

NE

W

Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233

Figure 1: i9600-000-DIL modem IC