AT90PWM161 Atmel Corporation, AT90PWM161 Datasheet - Page 148

• 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

13.3
148
PSCR Description
AT90PWM81
Figure 13-1.
The principle of the PSCR is based on the use of a counter (PSCR counter). This counter is able to count
up and count down from and to values stored in registers according to the selected running mode.
The PSCR is seen as two symmetrical entities. One part named part A which generates the output
PSCOUTr0 and the second one named part B which generates the PSCOUTr1 output.
Each part A or B has its own PSCR Input Module to manage selected input.
PCTLr
OCRrRB
OCRrSB
OCRrRA
PICRr
PSCR Counter
PCNFr
OCRrSA
Power Stage Controller Block Diagram
=
=
=
=
PFRCrA
PFRCrB
Part B
Part A
Gererator B
PSC Input
Module B
PSC Input
Module A
Gererator A
Waveform
Waveform
PSOCr
PSCOUTr1
PSCr Input B
PSCr Input A
PSCOUTr0
7734P–AVR–08/10