AT90PWM2B Atmel Corporation, AT90PWM2B Datasheet - Page 249

• Manufacturer Part Number: AT90PWM2B
• Manufacturer: Atmel Corporation

Specifications of AT90PWM2B

• Flash (kbytes): 8 Kbytes
• Pin Count: 24
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 19
• Ext Interrupts: 4
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 2
• 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: 4
• Output Compare Channels: 12
• Input Capture Channels: 1
• Pwm Channels: 7
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

4317J–AVR–08/10
In accordance with the Table 21-6, these 3 bits select the interrupt event which will generate the
trigger of the start of conversion. The start of conversion will be generated by the rising edge of
the selected interrupt flag whether the interrupt is enabled or not. In case of trig on PSCnASY
event, there is no flag. So in this case a conversion will start each time the trig event appears
and the previous conversion is completed
Table 21-6.
1.
Table 21-7.
ADTS3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
ADTS3
0
0
0
0
0
0
0
0
1
1
For trigger on any PSC event, if the PSC uses the PLL clock, the core must use PLL/4 clock
source.
ADC Auto Trigger Source Selection for non amplified conversions
ADC Auto Trigger Source Selection for amplified conversions
ADTS2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
ADTS2
0
0
0
0
1
1
1
1
0
0
ADTS1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
ADTS1
0
0
1
1
0
0
1
1
0
0
ADTS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
ADTS0
0
1
0
1
0
1
0
1
0
1
Description
Free Running Mode
Analog Comparator 0
External Interrupt Request 0
Timer/Counter0 Compare Match
Timer/Counter0 Overflow
Timer/Counter1 Compare Match B
Timer/Counter1 Overflow
Timer/Counter1 Capture Event
PSC0ASY Event
PSC1ASY Event
PSC2ASY Event
Analog comparator 1
Analog comparator 2
Reserved
Reserved
Reserved
Description
Free Running Mode
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
PSC0ASY Event
PSC1ASY Event
AT90PWM2/3/2B/3B
(1)
(1)
(1)
(1)
(1)
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