AT90PWM161 Atmel Corporation, AT90PWM161 Datasheet - Page 170

• Manufacturer Part Number: AT90PWM161
• Manufacturer: Atmel Corporation

Specifications of AT90PWM161

• Flash (kbytes): 16 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 20
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 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: Yes
• Crypto Engine: No
• Sram (kbytes): 0.25
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 1
• Output Compare Channels: 8
• Input Capture Channels: 1
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

13.20 Interrupt Handling
13.21 PSC Clock Sources
170
AT90PWM81
This signal can be selected between all falling or rising edge of PSCr0 or PSCr1 outputs.
List of interrupt sources:
PSCR must be able to generate high frequency with enhanced resolution.
The PSCR has two clock inputs:
Figure 13-31. Clock selection
PCLKSELr bit in PSCR Configuration register (PCNFr) is used to select the clock source.
PPREr1/0 bits in PSCR Control Register (PCTLr) are used to select the divide factor of the clock.
Table 13-7.
PCLKSELr
0
0
0
0
1
1
1
1
• Counter reload (end of On Time 1)
• PSCR Input event (active edge or at the beginning of level configured event)
• CLK PLL from the PLL
• CLK I/O
CLK
CLK
PLL
I/O
Output Clock versus Selection and Prescaler
PPREr1
0
0
1
1
0
0
1
1
PCLKSELr
1
0
CK
PPREr0
0
1
0
1
0
1
0
1
PRESCALER
CLK
CLKPSCr output
CLK I/O
CLK I/O / 4
CLK I/O / 32
CLK I/O / 256
CLK PLL
CLK PLL / 4
CLK PLL / 32
CLK PLL / 256
PSCr
PPREr1/0
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