Samsung S3P80C5 User Manual page 104

S3P80C5/C80C5/C80C8
Group priority:
D7 D4 D1
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
NOTE: In this device interrupt structure, only levels IRQ0, IRQ1, IRQ4, IRQ6-IRQ7
Interrupt Priority Register (IPR)
FFH, Set 1, Bank 0, R/W
MSB .7 .6
0 = Undefined
1 = B > C > A
0 = A > B > C
1 = B > A > C
0 = C > A > B
1 = C > B > A
0 = A > C > B
1 = Undefined
Subgroup C
0 = IRQ6 > IRQ7
1 = IRQ7 > IRQ6
are used. Settings for group/subgroup B, which control relative priorities for
levels IRQ2, IRQ3 and IRQ5, are therefore not evaluated.
Figure 5-8. Interrupt Priority Register (IPR)
.5 .4 .3 .2
Subgroup B
0 = IRQ4
1 = IRQ4
(note)
Group C
0 = IRQ6, IRQ7
1 = IRQ6, IRQ7
INTERRUPT STRUCTURE
.1 .0 LSB
Group A
0 = IRQ0 > IRQ1
1 = IRQ1 > IRQ0
(note)
Group B
0 = IRQ4
1 = IRQ4
(note)
5-13