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Renesas SH7781 User Manual

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19. Display Unit (DU)

Rev.1.00 Jan. 10, 2008 Page 853 of 1658

REJ09B0261-0100

19.3.4

Display Unit Status Register Clear Register (DSRCR)

The display unit status register clear register (DSRCR) is a register which clears the various flags
in DSSR.

R/W:

Internal update:

R/W:

Internal update:

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

30

Bit:

Initial value:

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

R

R

R

R

R

R

R

R

W

W

R

W

R

R

W

W

0

0

0

0

0

0

0

0

0

0

0

HBCL

RICL

VBCL

TVCL

FRCL

0

1

2

3

4

5

6

7

8

9

10

11

12

13

15

14

Bit:

Initial value:

Bit Bit

Name

Initial
Value R/W

Internal
Update Description

31 to 16

⎯ All

0

R

⎯ Reserved

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

15

TVCL

Undefined W

None

TV Synchronous Signal Error Flag Clear

0: The TVR flag in DSSR is not changed.

1: The TVR flag in DSSR is cleared to 0.

14

FRCL

Undefined W

None

Flame Flag Clear

0: The FRM flag in DSSR is not changed.

1: The FRM flag in DSSR is cleared to 0.

13, 12

⎯ All

0

R

⎯ Reserved

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

11

VBCL

Undefined W

None

Vertical Blanking Flag Clear

0: The VBK flag in DSSR is not changed.

1: The VBK flag in DSSR is cleared to 0.

10

⎯ 0 R

⎯ Reserved

This bit is always read as 0. The write value
should always be 0.