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Renesas SH7781 User Manual

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10. Interrupt Controller (INTC)

Rev.1.00 Jan. 10, 2008 Page 291 of 1658

REJ09B0261-0100

(8)

Interrupt Mask Clear Register 0 (INTMSKCLR0)

INTMSKCLR0 is a 32-bit write-only register that clears the mask settings for each of the interrupt
requests IRQn (n = 0 to 7). Undefined values are read from this register.

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

30

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

IC07

IC06

IC05

IC04

IC03

IC02

IC00

IC01

R

R

R

R

R

R

R

R

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Bit:

Initial value:

R/W:

0

1

2

3

4

5

6

7

8

9

10

11

12

13

15

14

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

Bit:

Initial value:

R/W:

Bit Name

Initial
Value R/W Description

31

IC00

0

R/W

Clears masking of IRQ0
interrupt.

30

IC01

0

R/W

Clears masking of IRQ1
interrupt.

29

IC02

0

R/W

Clears masking of IRQ2
interrupt.

28

IC03

0

R/W

Clears masking of IRQ3
interrupt.

27

IC04

0

R/W

Clears masking of IRQ4
interrupt.

26

IC05

0

R/W

Clears masking of IRQ5
interrupt.

25

IC06

0

R/W

Clears masking of IRQ6
interrupt.

24

IC07

0

R/W

Clears masking of IRQ7
interrupt.

[When read]

Undefined values are
read.

[When written]

0: No effect

1: Clears the

corresponding interrupt
mask (enables the
interrupt)

23 to 0

All 0

R

Reserved

These bits are always read as 0. The write value
should always be 0.