ATmega8535 Atmel Corporation, ATmega8535 Datasheet - Page 317

• Manufacturer Part Number: ATmega8535
• Manufacturer: Atmel Corporation

Specifications of ATmega8535

• Flash (kbytes): 8 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

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