ATMEGA8535-16MUR Atmel, ATMEGA8535-16MUR Datasheet - Page 317
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ATMEGA8535-16MUR
Manufacturer Part Number
ATMEGA8535-16MUR
Description
MCU AVR 8K FLASH 16MHZ 44QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA8535L-8AU.pdf
(321 pages)
Specifications of ATMEGA8535-16MUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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2502K–AVR–10/06
Serial Peripheral Interface – SPI..................................................... 136
USART .............................................................................................. 145
Two-wire Serial Interface ................................................................ 174
Analog Comparator ......................................................................... 203
Analog-to-Digital Converter............................................................ 206
Overview........................................................................................................... 117
Timer/Counter Clock Sources........................................................................... 118
Counter Unit...................................................................................................... 119
Output Compare Unit........................................................................................ 119
Compare Match Output Unit ............................................................................. 121
Modes of Operation .......................................................................................... 122
Timer/Counter Timing Diagrams....................................................................... 126
8-bit Timer/Counter Register Description ......................................................... 128
Asynchronous Operation of the Timer/Counter ................................................ 131
Timer/Counter Prescaler................................................................................... 134
SS Pin Functionality.......................................................................................... 141
Data Modes ...................................................................................................... 144
Overview........................................................................................................... 145
Clock Generation .............................................................................................. 146
Frame Formats ................................................................................................. 149
USART Initialization.......................................................................................... 150
Data Transmission – The USART Transmitter ................................................. 152
Data Reception – The USART Receiver .......................................................... 155
Asynchronous Data Reception ......................................................................... 158
Multi-processor Communication Mode ............................................................. 162
Accessing UBRRH/UCSRC Registers.............................................................. 163
USART Register Description ............................................................................ 164
Examples of Baud Rate Setting........................................................................ 170
Features............................................................................................................ 174
Two-wire Serial Interface Bus Definition........................................................... 174
Data Transfer and Frame Format ..................................................................... 175
Multi-master Bus Systems, Arbitration and Synchronization ............................ 177
Overview of the TWI Module ............................................................................ 179
TWI Register Description.................................................................................. 181
Using the TWI ................................................................................................... 185
Transmission Modes......................................................................................... 188
Multi-master Systems and Arbitration............................................................... 201
Analog Comparator Multiplexed Input .............................................................. 205
Features............................................................................................................ 206
Operation .......................................................................................................... 207
Starting a Conversion ....................................................................................... 208
ATmega8535(L)
iii
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