AT90PWM81 Atmel Corporation, AT90PWM81 Datasheet - Page 175
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AT90PWM81
Manufacturer Part Number
AT90PWM81
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT90PWM161.pdf
(325 pages)
Specifications of AT90PWM81
Flash (kbytes)
8 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
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13.23.8
13.23.9
7734P–AVR–08/10
PSCR Input A Control Register – PFRC0A
PSCR Input B Control Register – PFRC0B
• Bit 5- PBFM01: Balance Flank Width Modulation, bit 1
Defines the Flank Width Modulation, together with PBFM00 bit.
Table 13-13.
1.
• Bit 4 – PAOC0B : PSCR Asynchronous Output Control B
When this bit is set, Fault input selected to block B can act directly to PSCOUT01 output. See
Section “PSCR Input Configuration”, page 159.
• Bit 3 – PAOC0A : PSCR Asynchronous Output Control A
When this bit is set, Fault input selected to block A can act directly to PSCOUT00 output. See
Section “PSCR Input Configuration”, page 159.
• Bit 2- PBFM00: Balance Flank Width Modulation, bit 0
Defines the Flank Width Modulation, together with PBFM01 bit
• Bit 1 – PCCYC0 : PSCR Complete Cycle
When this bit is set, the PSCR completes the entire waveform cycle before halt operation requested by
clearing PRUN0. This bit is not relevant in slave mode (PARUN0 = 1).
• Bit 0 – PRUN0 : PSCR Run
Writing this bit to one starts the PSCR.
When set, this bit prevails over PARUN0 bit.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
PBFM01
0
0
1
1
Note: In one ramp mode, changing SA or SA+SB also affect On-Time ; see PSCr0 & PSCr1 Basic Wave-
forms in One Ramp mode
7
PCAE0A
R/W
0
7
PCAE0B
R/W
0
Flank Width Mode Selection
PBFM00
0
1
0
1
6
PISEL0A0 PELEV0A
R/W
0
6
PISEL0B0 PELEV0B
R/W
0
5
R/W
0
5
R/W
0
Description
Flank Width Modulation operates on RB (On-Time 1 only).
Flank Width Modulation operates on RB + RA (On-Time 0 and On-Time
1).
Flank Width Modulation operates on SB (Dead-Time 1 only)
Flank Width Modulation operates on SB +SA (Dead-Time 0 and Dead-
Time 1).
4
PFLTE0A
R/W
0
4
PFLTE0B
R/W
0
3
PRFM0A3 PRFM0A2 PRFM0A1 PRFM0A0 PFRC0A
R/W
0
3
PRFM0B3 PRFM0B2 PRFM0B1 PRFM0B0 PFRC0B
R/W
0
2
R/W
0
2
R/W
0
1
R/W
0
1
R/W
0
AT90PWM81
0
R/W
0
0
R/W
0
(1)
.
175
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