AT90PWM161 Atmel Corporation, AT90PWM161 Datasheet - Page 40

• 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

5.5.3
40
AT90PWM81
PLL Control and Status Register – PLLCSR
Table 5-10.
• Bit 7..3 – Res: Reserved Bits
These bits are reserved bits in the AT90PWM81 and always read as zero.
• Bit 5..2-– PLLF: PLL Factor
The PLLF bits is used to select the multiplication factor of the PLL
.
Table 5-11.
Note:
Bit
$29 ($29)
Read/Write
Initial Value
CLKPS3
PLLF3..0
1
1
1
1
1
1
1
1
PLLF3 is used for debug purpose (must be wired)
7-F
0-1
6
5
4
3
2
7
–
R
0
PLL multiplication factor
Clock Prescaler Select (Continued)
CLKPS2
0
0
0
0
1
1
1
1
6
–
R
0
N+2
8
7
6
5
4
CLKPS1
5
PLLF3
R/W
0
0
0
1
1
0
0
1
1
4
PLLF2
R/W
1
CLKPS0
0
1
0
1
0
1
0
1
3
PLLF1
R/W
0
2
PLLF0
R/W
0
PLL frequency MHz
Reserved
Reserved
Clock Division Factor
1
PLLE
R/W
0/1
64
56
48
40
32
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
256
0
PLOCK
R
0
7734P–AVR–08/10
PLLCSR