at90ls4433 ATMEL Corporation, at90ls4433 Datasheet - Page 123

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at90ls4433

Manufacturer Part Number
at90ls4433
Description
At90s4433 8-bit Avr Microcontroller With 4k Bytes Of In-system Programmable Flash
Manufacturer
ATMEL Corporation
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Table of Contents
1042H–AVR–04/03
Features................................................................................................. 1
Pin Configurations................................................................................ 2
Description ............................................................................................ 3
Architectural Overview......................................................................... 7
Timer/Counters ................................................................................... 33
16-bit Timer/Counter1......................................................................... 35
Watchdog Timer.................................................................................. 43
EEPROM Read/Write Access............................................................. 45
Serial Peripheral Interface – SPI........................................................ 48
UART.................................................................................................... 53
Analog Comparator ............................................................................ 62
Block Diagram ...................................................................................................... 4
Pin Descriptions.................................................................................................... 5
Clock Options ....................................................................................................... 6
General Purpose Register File ........................................................................... 10
ALU – Arithmetic Logic Unit................................................................................ 11
In-System Programmable Flash Program Memory ............................................ 11
SRAM Data Memory........................................................................................... 11
Program and Data Addressing Modes................................................................ 12
EEPROM Data Memory...................................................................................... 16
Memory Access Times and Instruction Execution Timing .................................. 16
I/O Memory ......................................................................................................... 17
Reset and Interrupt Handling.............................................................................. 20
Sleep Modes....................................................................................................... 31
Timer/Counter Prescaler..................................................................................... 33
8-bit Timer/Counter0........................................................................................... 33
Prevent EEPROM Corruption ............................................................................. 47
SS Pin Functionality............................................................................................ 49
Data Modes ........................................................................................................ 50
Data Transmission.............................................................................................. 53
Data Reception ................................................................................................... 54
UART Control ..................................................................................................... 57
AT90S/LS4433
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