AT90PWM3B Atmel Corporation, AT90PWM3B Datasheet - Page 95

• Manufacturer Part Number: AT90PWM3B
• Manufacturer: Atmel Corporation

Specifications of AT90PWM3B

• Flash (kbytes): 8 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 27
• Ext Interrupts: 4
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 3
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• 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 105
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 5
• Output Compare Channels: 16
• Input Capture Channels: 1
• Pwm Channels: 12
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

14.8
14.8.1
4317J–AVR–08/10
8-bit Timer/Counter Register Description
Timer/Counter Control Register A – TCCR0A
Figure 14-9. Timer/Counter Timing Diagram, with Prescaler (f
Figure 14-10
mode and PWM mode, where OCR0A is TOP.
Figure 14-10. Timer/Counter Timing Diagram, Setting of OCF0x, with Prescaler (f
Figure 14-11
PWM mode where OCR0A is TOP.
Figure 14-11. Timer/Counter Timing Diagram, Clear Timer on Compare Match mode, with Pres-
Bit
Read/Write
Initial Value
TCNTn
TCNTn
TCNTn
(clk
(clk
(clk
OCRnx
OCRnx
TOVn
OCFnx
(CTC)
OCFnx
clk
clk
clk
clk
clk
clk
I/O
I/O
I/O
I/O
Tn
I/O
Tn
I/O
Tn
/8)
/8)
/8)
shows the setting of OCF0B in all modes and OCF0A in all modes except CTC
shows the setting of OCF0A and the clearing of TCNT0 in CTC mode and fast
caler (f
COM0A1
R/W
7
0
clk_I/O
OCRnx - 1
COM0A0
MAX - 1
TOP - 1
R/W
/8)
6
0
COM0B1
R/W
5
0
COM0B0
OCRnx
R/W
MAX
TOP
4
0
OCRnx Value
TOP
R
3
–
0
AT90PWM2/3/2B/3B
OCRnx + 1
BOTTOM
BOTTOM
clk_I/O
R
2
–
0
/8)
WGM01
R/W
1
0
BOTTOM + 1
BOTTOM + 1
WGM00
OCRnx + 2
R/W
0
0
clk_I/O
/8)
TCCR0A
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