A000046 Arduino, A000046 Datasheet - Page 445

• Manufacturer Part Number: A000046
• Description: MCU, MPU & DSP Development Tools Uno
• Manufacturer: Arduino
• Series: -r
• Type: MCUr

Specifications of A000046

• Processor To Be Evaluated: ATmega328
• Interface Type: USB, I2C, SPI
• Dimensions: 2.7 in x 2.1 in
• Operating Supply Voltage: 5 V
• Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: ATmega328

8161D–AVR–10/09
21 2-wire Serial Interface .......................................................................... 214
22 Analog Comparator ............................................................................. 246
23 Analog-to-Digital Converter ................................................................ 250
24 debugWIRE On-chip Debug System .................................................. 267
20.5Frame Formats ....................................................................................................206
20.6Data Transfer ......................................................................................................208
20.7AVR USART MSPIM vs. AVR SPI ......................................................................210
20.8Register Description ............................................................................................211
21.1Features ..............................................................................................................214
21.22-wire Serial Interface Bus Definition ..................................................................214
21.3Data Transfer and Frame Format ........................................................................216
21.4Multi-master Bus Systems, Arbitration and Synchronization ...............................218
21.5Overview of the TWI Module ...............................................................................221
21.6Using the TWI ......................................................................................................223
21.7Transmission Modes ...........................................................................................227
21.8Multi-master Systems and Arbitration ..................................................................240
21.9Register Description ............................................................................................241
22.1Overview .............................................................................................................246
22.2Analog Comparator Multiplexed Input .................................................................246
22.3Register Description ............................................................................................247
23.1Features ..............................................................................................................250
23.2Overview .............................................................................................................250
23.3Starting a Conversion ..........................................................................................252
23.4Prescaling and Conversion Timing ......................................................................253
23.5Changing Channel or Reference Selection .........................................................255
23.6ADC Noise Canceler ...........................................................................................256
23.7ADC Conversion Result ......................................................................................261
23.8Temperature Measurement .................................................................................261
23.9Register Description ............................................................................................262
24.1Features ..............................................................................................................267
24.2Overview .............................................................................................................267
24.3Physical Interface ................................................................................................267
24.4Software Break Points .........................................................................................268
24.5Limitations of debugWIRE ...................................................................................268
24.6Register Description ............................................................................................268
ATmega48PA/88PA/168PA/328P
v