ATSTK526 Atmel, ATSTK526 Datasheet - Page 5

• Manufacturer Part Number: ATSTK526
• Description: KIT STARTER FOR AT90USB82/162
• Manufacturer: Atmel
• Series: AVR®r
• Type: MCUr

Specifications of ATSTK526

• Contents: Starter Kit Board, Power Supply, Cable and Software
• Processor To Be Evaluated: AT90USB82/162
• Data Bus Width: 8 bit
• Interface Type: RS-232, USB
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Silicon Core Number: AT90USB82, AT90USB162
• Kit Contents: Board Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT90USB162, AT90USB82
• For Use With: ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5. Application Overview
7604C–AVR–07/08
Wheel
Byte 3
The USB mouse application is a simple data exchange between the PC and the mouse.
The PC asks the mouse if there is new data available each P time (polling interval time), the
mouse will send the data if it is available, otherwise it will send a NAK (No Acknowledge) to tell
the PC that there is no data available.
Data sent to the PC are called ‘report’. This report has the structure below:
Figure 5-1.
Byte 2
The mouse pointer position
USB Report Structure
Y
Byte 1
X
default value 0
Reserved :
Byte 0
2
Button middle
1
Button right
0
Button left
AVR270
5