S3C8245/P8245/C8249/P8249 CONTROL REGISTER
4-13
IPR — Interrupt Priority Register FFH Set 1, Bank 0
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
nRESET Value xxxxxxxx
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Addressing Mode Register addressing mode only
.7, .4, and .1 Priority Control Bits for Interrupt Groups A, B, and C
000Group priority undefined
001B > C > A
010A > B > C
011B > A > C
100C > A > B
101C > B > A
110A > C > B
111Group priority undefined
.6 Interrupt Subgroup C Priority Control Bit
0IRQ6 > IRQ7
1IRQ7 > IRQ6
.5 Interrupt Group C Priority Control Bit
0IRQ5 > (IRQ6, IRQ7)
1(IRQ6, IRQ7) > IRQ5
.3 Interrupt Subgroup B Priority Control Bit
0IRQ3 > IRQ4
1IRQ4 > IRQ3
.2 Interrupt Group B Priority Control Bit
0IRQ2 > (IRQ3, IRQ4)
1(IRQ3, IRQ4) > IRQ2
.0 Interrupt Group A Priority Control Bit
0IRQ0 > IRQ1
1IRQ1 > IRQ0