ata6616 ATMEL Corporation, ata6616 Datasheet - Page 31

• Manufacturer Part Number: ata6616
• Description: Microcontroller With Lin Transceiver, 5v Regulator And Watchdog
• Manufacturer: ATMEL Corporation

4.2.6
4.3
4.3.1
9132A–AUTO–10/08
DRAFT
AVR CPU Core
About Code Examples
Overview
This documentation contains simple code examples that briefly show how to use various parts of
the device. These code examples assume that the part specific header file is included before
compilation. Be aware that not all C compiler vendors include bit definitions in the header files
and interrupt handling in C is compiler dependent. Please confirm with the C compiler documen-
tation for more details.
This section discusses the AVR core architecture in general. The main function of the CPU core
is to ensure correct program execution. The CPU must therefore be able to access memories,
perform calculations, control peripherals, and handle interrupts.
Figure 4-2.
Block Diagram of the AVR Architecture
Control Lines
Instruction
Instruction
Program
Memory
Register
Decoder
Flash
Program
Counter
ATA6616/ATA6617 [Preliminary]
and Control
EEPROM
Registrers
I/O Lines
Purpose
General
SRAM
Data Bus 8-bit
Status
32 x 8
Data
ALU
Comparator
I/O Module1
I/O Module 2
I/O Module n
Watchdog
Interrupt
Timer
A.D.C.
Analog
Unit
31