ATA6602-PLQW ATMEL [ATMEL Corporation], ATA6602-PLQW Datasheet - Page 30

• Manufacturer Part Number: ATA6602-PLQW
• Description: Microcontroller with LIN Transceiver, 5V Regulator and Watchdog
• Manufacturer: ATMEL [ATMEL Corporation]

4.3
4.4
4.4.1
4.4.2
Figure 4-2.
30
About Code Examples
AVR CPU Core
ATA6602/ATA6603
Introduction
Architectural Overview
Block Diagram of the AVR Architecture
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 file
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.
Control lines
Instruction
Instruction
program
memory
decoder
register
Flash
Program
counter
Data Bus 8-bit
and control
EEPROM
registers
purpose
I/O lines
general
SRAM
Status
32
DATA
ALU
8
I/O Module 1
I/O Module 2
I/O Module n
comparator
Interrupt
Watchdog
Analog
unit
SPI
unit
timer
4921C–AUTO–01/07