AT90PWM81 Atmel Corporation, AT90PWM81 Datasheet - Page 61
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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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8.
8.1
7734P–AVR–08/10
Interrupts
Interrupt Vectors in AT90PWM81
This section describes the specifics of the interrupt handling as performed in AT90PWM81. For a general
explanation of the AVR interrupt handling, refer to
Table 8-1.
Notes:
Table 8-2
IVSEL settings. If the program never enables an interrupt source, the Interrupt Vectors are not used, and
Vector
No.
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
1. When the BOOTRST Fuse is programmed, the device will jump to the Boot Loader address at reset, see
2. When the IVSEL bit in MCUCR is set, Interrupt Vectors will be moved to the start of the Boot Flash
shows reset and Interrupt Vectors placement for the various combinations of BOOTRST and
“Boot Loader Support – Read-While-Write Self-Programming” on page
Section. The address of each Interrupt Vector will then be the address in this table added to the start
address of the Boot Flash Section.
Program
Address
0x000A
0x000B
0x000C
0x000D
0x000E
0x000F
0x0000
0x0001
0x0002
0x0003
0x0004
0x0005
0x0006
0x0007
0x0008
0x0009
0x0010
0x0011
0x0012
0x0013
0x0014
0x0015
Reset and Interrupt Vectors
Source
PSC2 CAPT
PSC2 EC
PSC2 EEC
PSCr CAPT
PSCr EC
PSCr EEC
ANACOMP 0
ANACOMP 1
ANACOMP 2
INT0
TIMER1 CAPT
TIMER1 OVF
ADC
INT1
SPI, STC
INT2
WDT
EE READY
SPM READY
RESET
Interrupt Definition
External Pin, Power-on Reset, Brown-out Reset, Watchdog
Reset, and Emulation AVR Reset
PSC2 Capture Event
PSC2 End Cycle
PSC2 End of Enhanced Cycle
PSC reduced Capture Event
PSC reduced End Cycle
PSC reduced End of Enhanced Cycle
Analog Comparator 0
Analog Comparator 1
Analog Comparator 2
External Interrupt Request 0
Timer/Counter1 Capture Event
Timer/Counter1 Overflow
ADC Conversion Complete
External Interrupt Request 1
SPI Serial Transfer Complete
External Interrupt Request 2
Watchdog Time-Out Interrupt
EEPROM Ready
Store Program Memory Ready
“Reset and Interrupt Handling” on page
232.
AT90PWM81
13.
61
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