Features; System Overview - Motorola M68HC08 Designer Reference Manual

System Overview

1.2 Features

1.3 System Overview
NOTE:
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Freescale Semiconductor, Inc.
Main features of the mouse include:
• A high data rate 27-MHz RF link
• Windows® 98, Windows 2000, and Windows XP compatibility
• User identity code to avoid conflict with other devices
• USB 2.0 low-speed compliance
• 4.8 kbps transmission data rate
• 2 meter communication distance
• 3361 compatible device for RF receiver design
The system consists of:
• A high data rate wireless optical mouse using the MC68HC908QY4
(hereafter referred as QY4)
• A USB receiver using the MC68HC908JB12 (hereafter referred as
JB12).
The QY4 was chosen as the mouse transmitter because it includes:
• An internal oscillator circuit
• An auto wakeup function
The JB12 is suitable for this high data rate wireless optical mouse application
because it has:
• 12-K FLASH memory
• 6-MHz bus processing power
• USB function
• An enhanced timer capture module
The traditional track-ball type X-Y detection method was replaced by the
advance optical navigation technology that serves as a non-mechanical motion
estimation.
A block diagram of the system is shown in
Windows is a registered trademark of Microsoft Corporation in the United States and other
countries.
System Overview
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Figure 1-1.
High Data Rate Wireless USB Optical Mouse Solution
MOTOROLA