Interrupt Controller Special Registers; Interrupt Mode Registers - Samsung S3C2501X User Manual

S3C2501X
Index Values

13.4 INTERRUPT CONTROLLER SPECIAL REGISTERS

13.4.1 INTERRUPT MODE REGISTERS

Bit settings in the interrupt mode registers, INTMOD and EXTMOD, specify if an interrupt is to be serviced as a
fast interrupt (FIQ) or a normal interrupt (IRQ).
Register Address
INTMOD 0xF0140000
EXTMOD 0xF0140004
Table 13-2. S3C2501X External Interrupt Sources
[6] Reserved
[5] External interrupt 5
[4] External interrupt 4
[3] External interrupt 3
[2] External interrupt 2
[1] External interrupt 1
[0] External interrupt 0
Table 13-3. INTMOD, EXTMOD Register
R/W
R/W Internal interrupt mode register
R/W External interrupt mode register
Interrupt Sources
Description
INTERRUPT CONTROLLER
Reset Value
0x00000000
0x00000000
13-3