Vidscrnhpage, Rsvd : reserved - unknown during read – Cirrus Logic EP93xx User Manual

Page 228

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7-46

DS785UM1

Copyright 2007 Cirrus Logic

Raster Engine With Analog/LCD Integrated Timing and Interface
EP93xx User’s Guide

7

7

7

Frame Buffer Memory Configuration Registers

VidScrnPage

Address: 0x8003_0028

Default: 0x0000_0000

Definition: Video Screen Page Register

Bit Descriptions:

RSVD:

Reserved - Unknown during read

PAGE:

Video Screen Page Starting SDRAM Address - Read/Write

Corresponds to the word address relative to the beginning
of SDRAM of the upper left corner of the video screen to
be scanned out. The absolute AHB address for the video
screen page is determined by the combination of this bit
field as well as the SDSEL bit held in the

“VideoAttribs”

register.

NA:

Not Assigned. Will return written value during a read.

VidScrnHPage

Address: 0x8003_002C

Default: 0x0000_0000

Definition: Video Screen Half Page Register

Bit Descriptions:

RSVD:

Reserved - Unknown during read

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

RSVD

PAGE

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

PAGE

NA

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

RSVD

PAGE

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

PAGE

NA

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