XMEGA D4
Table of Contents
Features..................................................................................................... 1
Ordering Information ............................................................................... 2
Pinout/Block Diagram .............................................................................. 3
Overview ................................................................................................... 5
1
2
3
3.1
Block Diagram ...................................................................................................6
4
Resources ................................................................................................. 7
4.1
Recommended reading .....................................................................................7
5
6
Capacitive touch sensing ........................................................................ 7
AVR CPU ................................................................................................... 8
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
Features ............................................................................................................8
Overview ............................................................................................................8
Architectural Overview .......................................................................................8
ALU - Arithmetic Logic Unit ...............................................................................9
Program Flow ..................................................................................................10
Status Register ................................................................................................10
Stack and Stack Pointer ..................................................................................10
Register File ....................................................................................................11
7
Memories ................................................................................................ 12
7.1
Features ..........................................................................................................12
Overview ..........................................................................................................12
Flash Program Memory ...................................................................................13
Fuses and Lock bits .........................................................................................14
Data Memory ...................................................................................................15
EEPROM .........................................................................................................15
I/O Memory ......................................................................................................15
Data Memory and Bus Arbitration ...................................................................16
Memory Timing ................................................................................................16
Device ID and Revision ...................................................................................16
I/O Memory Protection .....................................................................................16
Flash and EEPROM Page Size .......................................................................16
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
8
Event System ......................................................................................... 18
8.1
Features ..........................................................................................................18
i
8135L–AVR–06/12