Interrupts

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ARM7 Interrupts

ADDRESS WIDTH (bytes) NAME
0x04000218 4 REG_IE2
0x0400021C 4 REG_IF2
ARM7 REG_IE / REG_IF
BIT DESCRIPTION
0-12 same as DS
13 removed GBA-slot interrupt
14-27 same as DS ?
28 NDMA0 interrupt
29 NDMA1 interrupt
30 NDMA2 interrupt
31 NDMA3 interrupt
ARM7 REG_IE2 / REG_IF2
BIT DESCRIPTION
0 GPIO18[0]
1 GPIO18[1]
2 GPIO18[2]
4 GPIO33[0]
5 GPIO33[1]
6 Powerbutton interrupt (GPIO33[2])
7 GPIO33[3]
8 SD card 1
9 SDIO card 1 async
10 SD card 2
11 SDIO card 2 async
12 AES Engine interrupt
13 I2C Bus interrupt
14 Microphone Extended interrupt
15-31  ?

ARM9 Interrupts

ARM9 REG_IE / REG_IF
BIT DESCRIPTION
0-12 same as DS
13 removed GBA-slot interrupt
14 NDS-slot Card change?
15-23 same as DS
24 XpertTeak DSP
25 Cameras
26-27 Not used
28 NDMA0 interrupt
29 NDMA1 interrupt
30 NDMA2 interrupt
31 NDMA3 interrupt
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