User's Guide

Hardware Description
MOTOROLA Introduction and Configuration 1-3
1.3 Hardware Description
As previously stated, the MC13192 Sensor Applications Reference Design (SARD) provides the hardware
required to establish a wireless node using a variety of protocols. Figure 1-1 shows a simplified block
diagram of two SARDs connected in a simple point-to-point network. Optional personal computers are
shown for control and monitoring.
The SARD is a 2 inch x 3 inch module that comprises a complete network node containing the MC13192,
crystal, printed circuit antenna and MCU. Also included are jumper-selectable X-Y and Z Axis
Accelerometers, four switches, and four LEDs for monitoring purposes. The SARD derives its power from
a 9V battery or a 2.1 mm power connector which allows a supply of 5.5 to 9V.
Figure 1-1. Point to Point MC13192 SARD Block Diagram
1.3.1 MC13192 SARD Circuit Description
Figure 1-2 shows the MC13192 SARD schematic. Appendix A includes board layout, including the
printed dipole receive and transmit antennas, and Bill of Material information. All circuitry required for a
2.4 GHz wireless node is provided. The heart of the design is the MC13192 2.4 GHz transceiver and the
MC9S08GT60 microcontroller. All connections for control of the transceiver by the MCU are provided.
Peripherally, four LEDs and switches interfacing with the MCU are provided for control and
demonstration purposes.
Three accelerometers are provided. An MMA6261Q (X and Y axis) and an MMA1260D (Z axis) for
demonstration purposes. A Background Debug Module (BDM) port is provided for programming using
the CodeWarrior™ Development Studio to develop and in-circuit debug code and program the MCU. An
RS-232 interface is provided to allow monitoring or programming.
PC
RS232
SPI
MC13192
SPI
MC13192
RS232
PC
Node One
RF
BDM Interface
(Programming
Only)
BDM Interface
(Programming
Only)
X-Y Axis Accelerometer
Z Axis Accelerometer
Node Two
X-Y Axis Accelerometer
Z Axis Accelerometer
HCS08
MCU
HCS08
MCU