ATmega16 Atmel Corporation, ATmega16 Datasheet - Page 353

• Manufacturer Part Number: ATmega16
• Manufacturer: Atmel Corporation

Specifications of ATmega16

• Flash (kbytes): 16 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): 1
• 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

JTAG Interface and On-chip Debug System 222
IEEE 1149.1 (JTAG) Boundary-scan 228
Boot Loader Support – Read-While-Write Self-Programming 246
Memory Programming 259
iv
Prescaling and Conversion Timing 207
Changing Channel or Reference Selection 210
ADC Noise Canceler 211
ADC Conversion Result 216
Features 222
Overview 222
Test Access Port – TAP 222
TAP Controller 224
Using the Boundary-scan Chain 225
Using the On-chip Debug System 225
On-chip Debug Specific JTAG Instructions 226
On-chip Debug Related Register in I/O Memory 227
Using the JTAG Programming Capabilities 227
Bibliography 227
Features 228
System Overview 228
Data Registers 228
Boundary-scan Specific JTAG Instructions 230
Boundary-scan Chain 232
ATmega16 Boundary-scan Order 241
Boundary-scan Description Language Files 245
Features 246
Application and Boot Loader Flash Sections 246
Read-While-Write and no Read-While-Write Flash Sections 246
Boot Loader Lock Bits 248
Entering the Boot Loader Program 249
Addressing the Flash during Self-Programming 251
Self-Programming the Flash 252
Program And Data Memory Lock Bits 259
Fuse Bits 260
Signature Bytes 261
Calibration Byte 261
Page Size 262
Parallel Programming Parameters, Pin Mapping, and Commands 262
Parallel Programming 265
Serial Downloading 273
Programming via the JTAG Interface 278
ATmega16(L)
2466T–AVR–07/10