ATmega16A Atmel Corporation, ATmega16A Datasheet - Page 111

• Manufacturer Part Number: ATmega16A
• Manufacturer: Atmel Corporation

Specifications of ATmega16A

• 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

8154B–AVR–07/09
Table 16-3.
Note:
Table 16-4
correct or the phase and frequency correct, PWM mode.
Table 16-4.
Note:
• Bit 3 – FOC1A: Force Output Compare for Channel A
• Bit 2 – FOC1B: Force Output Compare for Channel B
The FOC1A/FOC1B bits are only active when the WGM13:0 bits specifies a non-PWM mode.
However, for ensuring compatibility with future devices, these bits must be set to zero when
TCCR1A is written when operating in a PWM mode. When writing a logical one to the
FOC1A/FOC1B bit, an immediate compare match is forced on the Waveform Generation unit.
The OC1A/OC1B output is changed according to its COM1x1:0 bits setting. Note that the
FOC1A/FOC1B bits are implemented as strobes. Therefore it is the value present in the
COM1x1:0 bits that determine the effect of the forced compare.
COM1A1/COM1B1
COM1A1/COM1B1
1. A special case occurs when OCR1A/OCR1B equals TOP and COM1A1/COM1B1 is set. In
1. A special case occurs when OCR1A/OCR1B equals TOP and COM1A1/COM1B1 is set.
0
0
1
1
0
0
1
1
this case the compare match is ignored, but the set or clear is done at BOTTOM.
PWM Mode” on page 101.
“Phase Correct PWM Mode” on page 103.
shows the COM1x1:0 bit functionality when the WGM13:0 bits are set to the phase
Compare Output Mode, Fast PWM
Compare Output Mode, Phase Correct and Phase and Frequency Correct PWM
(1)
COM1A0/COM1B0
COM1A0/COM1B0
0
1
0
1
0
1
0
1
for more details.
Description
Normal port operation, OC1A/OC1B disconnected.
WGM13:0 = 15: Toggle OC1A on Compare Match,
OC1B disconnected (normal port operation).
For all other WGM13:0 settings, normal port
operation, OCnA/OCnB disconnected.
Clear OC1A/OC1B on compare match, set
OC1A/OC1B at BOTTOM,
(non-inverting mode)
Set OC1A/OC1B on compare match, clear
OC1A/OC1B at BOTTOM,
(inverting mode)
Description
Normal port operation, OC1A/OC1B disconnected.
WGM13:0 = 9 or 14: Toggle OCnA on Compare
Match, OCnB disconnected (normal port
operation).
For all other WGM13:0 settings, normal port
operation, OC1A/OC1B disconnected.
Clear OC1A/OC1B on compare match when up-
counting. Set OC1A/OC1B on compare match
when downcounting.
Set OC1A/OC1B on compare match when up-
counting. Clear OC1A/OC1B on compare match
when downcounting.
(1)
for more details.
ATmega16A
See “Fast
See
111