Samsung S3F80JB manual Interrupt Priority Register IPR

S3F80JB INTERRUPT STRUCTURE

MSB

Interrupt Priority Register (IPR)

FEH, Set 1, Bank 0 , R/W

.7 .6 .5 .4 .3 .2 .1 .0

LSB

Group Priority:

D7 D4 D1

0	0	0	= Undefined
0	0	1	= B > C > A
0	1	0	= A > B > C

01 1 = B > A > C

10 0 = C > A > B

1 0 1 = C > B > A

11 0 = A > C > B

11 1 = Undefined

Group A

0 = IRQ0 > IRQ1

1 = IRQ0 < IRQ1

Group B

0 = IRQ2 > (IRQ3,IRQ4)

1 = IRQ2 < (IRQ3,IRQ4) Subgroup B (see note)

0 = IRQ3>IRQ4

1 = IRQ3<IRQ4

Group C

0 = IRQ5 > (IRQ6, IRQ7)

1 = (IRQ6, IRQ7) > IRQ5 Subgroup C

0 = IRQ6 > IRQ7

1 = IRQ7 > IRQ6

Figure 5-8. Interrupt Priority Register (IPR)

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