2. Introduction
2.1.
Module Overview
TRANSMITTER
ANTENNA
CONTROL
UART
BASEBAND DSP
ANTENNA SWITCH
COMBINER
VCO
PROTOCOL
CONTROLLER
ANALOG IN
DIGITAL I/O
RECEIVER
DATA
LEGEND
HARDWARE IN WISE
SOFTWARE IN WISE
WiSE MAC
SERIAL INTERFACE
I/O INTERFACE
WiSE PACKET
Wi.232 APPLICATION
HAL
Figure 1: Wi.232EUR Block Diagram
2.2.
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Features
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8 modes allow user to optimize
power/range
Command mode for volatile and non-
volatile configuration
48-bit unique address
5 volt tolerant I/O
Under $20 in production quantities
915MHz U.S. version available
True UART to antenna solution
16-bit CRC error checking
76.8kbit/sec maximum RF data rate
2 channels in Wideband mode
6 channels in Narrowband mode
Small size – .8” x .935” .08”
Low power standby and sleep modes
PHY and MAC layer protocol built in
CSMA medium access control
115dB link budget in Wideband mode
2.3.
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Applications
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Industrial/Home Automation
RFID
Wireless Sensors
Remote Data Logging
Direct RS-232/422/485 wire
replacement (requires external RS-232
to 3V CMOS conversion circuitry)
Asset Tracking
Automated Meter Reading
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Wi.232EUR User’s Manual
© 2003-2007 Radiotronix Inc.
2
3. Table of Contents
Document Control ...............................................................................................................2
Introduction..........................................................................................................................2
2.1. Module Overview .............................................................................................................. 2
2.2. Features ............................................................................................................................ 2
2.3. Applications....................................................................................................................... 2
3.
Table of Contents ................................................................................................................3
4.
Table of Figures ...................................................................................................................4
5.
Index of Tables.....................................................................................................................4
6.
Theory of Operation ............................................................................................................5
6.1. General.............................................................................................................................. 5
6.2. Operating States ............................................................................................................... 8
6.3. Resetting Module to Factory Defaults............................................................................... 9
7.
Application Information ....................................................................................................10
7.1. Pin-out Diagram .............................................................................................................. 10
7.2. Pin Description ................................................................................................................ 10
7.3. Mechanical Drawings ...................................................................................................... 11
7.4. Example Circuit ............................................................................................................... 13
7.5. Power Supply .................................................................................................................. 13
7.6. UART Interface ............................................................................................................... 13
7.7. Antenna ........................................................................................................................... 14
7.8. Link budget, transmit power, and range performance .................................................... 14
8.
Module Configuration........................................................................................................15
8.1. Channel settings ............................................................................................................. 15
8.2. Power Mode .................................................................................................................... 16
8.2.1. Wideband Mode....................................................................................................... 16
8.2.2. Narrowband Mode ................................................................................................... 17
8.3. UART Data Rate ............................................................................................................. 17
8.4. Network Mode ................................................................................................................. 18
8.5. Transmit Wait Timeout .................................................................................................... 18
8.6. Network Group ................................................................................................................ 18
8.7. CRC Control.................................................................................................................... 18
8.8. UART minimum transmission unit................................................................................... 19
8.9. Verbose mode................................................................................................................. 19
8.10.
CSMA enable .............................................................................................................. 19
8.11.
Sleep control................................................................................................................ 19
8.12.
MAC Address .............................................................................................................. 20
8.13.
Register Summary....................................................................................................... 21
9.
Using Configuration Registers.........................................................................................21
9.1. CMD Pin .......................................................................................................................... 21
9.2. Command Formatting ..................................................................................................... 22
9.3. Writing To Registers........................................................................................................ 23
9.4. Reading From Registers ................................................................................................. 24
10.
Electrical Specifications ...................................................................................................25
10.1.
Absolute Maximum Ratings......................................................................................... 25
10.2.
Detailed Electrical Specifications ................................................................................ 25
10.2.1.
AC Specifications – RX ........................................................................................ 25
10.2.2.
AC Specifications – TX ........................................................................................ 26
10.2.3.
DC Specifications ................................................................................................. 26
10.3.
Flash Specifications (Non-Volatile Registers) ............................................................. 27
11.
Custom Applications.........................................................................................................28
12.
Ordering Information.........................................................................................................28
13.
Contact Us..........................................................................................................................28
13.1.
Technical Support........................................................................................................ 28
13.2.
Sales Support .............................................................................................................. 28
1.
2.
Wi.232EUR User’s Manual
© 2003-2007 Radiotronix Inc.
3
4. Table of Figures
Figure 1: Wi.232EUR Block Diagram .............................................................................................. 2
Figure 2: WiSE Block Diagram ........................................................................................................ 5
Figure 3: Wi.232EUR Networking Concept ..................................................................................... 6
Figure 4: RX State Machine ............................................................................................................ 8
Figure 5: TX State Machine............................................................................................................. 9
Figure 7: Pin-out diagram .............................................................................................................. 10
Figure 8: Module Mechanical Drawings ........................................................................................ 11
Figure 9: Wi.232EUR/Wi.232DTS Suggested Footprint ............................................................... 12
Figure 10: Evaluation Module Circuit............................................................................................. 13
Figure 11: Command and CMD Pin Timing .................................................................................. 22
Figure 12: Command Conversion Code........................................................................................ 23
5. Index of Tables
Table 1, Module Pin Descriptions.................................................................................................. 10
Table 2, Wi.232EUR UART Interface Lines .................................................................................. 14
Table 3, Channel Table ................................................................................................................. 16
Table 4, Power Mode Register Settings........................................................................................ 16
Table 5, Wideband Mode Parameters........................................................................................... 17
Table 6, narrowband Mode Parameters........................................................................................ 17
Table 7, Data Rate Register Settings............................................................................................ 17
Table 8, Register Summary........................................................................................................... 21
Table 9, Write Register Command, value to be written is less than 128 (0x80). .......................... 23
Table 10, Write Register Command, value to be written is greater than or equal to 128 (0x80). . 24
Table 11, Read Register Command .............................................................................................. 24
Table 12, Read Register Module Response For A Valid Register ................................................ 24
Table 13, Absolute Maximum Ratings........................................................................................... 25
Table 14, AC Specifications - Rx................................................................................................... 25
Table 15, AC Specifications - Tx ................................................................................................... 26
Table 16, DC Specifications .......................................................................................................... 26
Table 17, Flash Specifications (Non-Volatile Registers) ............................................................... 27
Wi.232EUR User’s Manual
© 2003-2007 Radiotronix Inc.
4
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