AT32UC3A1256AU Atmel Corporation, AT32UC3A1256AU Datasheet - Page 102

• Manufacturer Part Number: AT32UC3A1256AU
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A1256AU

• Flash (kbytes): 256 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 69
• Ext Interrupts: 69
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 1
• Uart: 4
• Ssc: 1
• Ethernet: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 16
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 64
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Operating Voltage (vcc): 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 10
• Output Compare Channels: 16
• Input Capture Channels: 6
• Pwm Channels: 13
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

32058K AVR32-01/12
16.4.3
Register Name:
Access Type:
• IRR: Interrupt Request line
0 = No interrupt request is pending on this input request input.
1 = An interrupt request is pending on this input request input.
The are 64 IRRs, one for each group. Each IRR has 32 bits, one for each possible interrupt request, for a total of 2048 pos-
sible input lines. The IRRs are read by the software interrupt handler in order to determine which interrupt request is
pending. The IRRs are sampled continuously, and are read-only.
IRR(32*x+31)
IRR(32*x+23)
IRR(32*x+15)
IRR(32*x+7)
31
23
15
7
Interrupt Request Registers
IRR(32*x+30)
IRR(32*x+22)
IRR(32*x+14)
IRR(32*x+6)
30
22
14
6
IRR(32*x+29)
IRR(32*x+21)
IRR(32*x+13)
IRR(32*x+5)
29
21
13
5
IRR0...IRR63
Read-only
IRR(32*x+28)
IRR(32*x+20)
IRR(32*x+12)
IRR(32*x+4)
28
20
12
4
IRR(32*x+27)
IRR(32*x+19)
IRR(32*x+11)
IRR(32*x+3)
27
19
11
3
IRR(32*x+10)
IRR(32*x+26)
IRR(32*x+18)
IRR(32*x+2)
26
18
10
2
IRR(32*x+25)
IRR(32*x+17)
IRR(32*x+9)
IRR(32*x+1)
25
17
9
1
AT32UC3A
IRR(32*x+24)
IRR(32*x+16)
IRR(32*x+8)
IRR(32*x+0)
24
16
8
0
102