at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 94

• Manufacturer Part Number: at32uc3b0512-z2ues
• Description: 32-bit Avr Microcontroller
• Manufacturer: ATMEL Corporation

12.6.2
Name:
Access Type:
Offset:
Reset Value:
• IRR: Interrupt Request line
32059J–12/2010
IRR[32*x+31]
IRR[32*x+23]
IRR[32*x+15]
IRR[32*x+7]
31
23
15
7
This bit is cleared when no interrupt request is pending on this input request line.
This bit is set when an interrupt request is pending on this input request line.
The are 64 IRRs, one for each group. Each IRR has 32 bits, one for each possible interrupt request, for a total of 2048 possible
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.
Interrupt Request Registers
IRR[32*x+30]
IRR[32*x+22]
IRR[32*x+14]
IRR[32*x+6]
30
22
14
IRR0...IRR63
Read-only
0x0FF - 0x1FC
N/A
6
IRR[32*x+29]
IRR[32*x+21]
IRR[32*x+13]
IRR[32*x+5]
29
21
13
5
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+26]
IRR[32*x+18]
IRR[32*x+10]
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
AT32UC3B
IRR[32*x+24]
IRR[32*x+16]
IRR[32*x+8]
IRR[32*x+0]
24
16
8
0
94