Hsigstrtstop – Cirrus Logic EP93xx User Manual

Page 262

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DS785UM1

Copyright 2007 Cirrus Logic

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

7

7

7

Bit Descriptions:

RSVD:

Reserved - Unknown during read

STOP:

Stop - Read/Write

The STOP value is the value of the Vertical down counter
at which the VSIGEN signal becomes inactive (stops).This
indicates the end of the signature calculation for the
Vertical frame. VSIGEN is an internal block signal. The
SIG_ENABLE control to the video signature analyzer is
enabled by the logical AND of VSIGEN and HSIGEN.

STRT: Start

-

Read/Write

The STRT value is the value of the Vertical down counter
at which the VSIGEN signal becomes active (starts).This
indicates the start of the signature calculation for the
Vertical frame. VSIGEN is an internal block signal. The
SIG_ENABLE control to the video signature analyzer is
enabled by the logical AND of VSIGEN and HSIGEN.

HSigStrtStop

Address: 0x8003_020C

Default: 0x0000_0000

Definition: Horizontal Signature Bounds Start/Stop register

Bit Descriptions:

RSVD:

Reserved - Unknown during read

STOP:

Stop - Read/Write

The STOP value is the value of the horizontal down
counter at which the HSIGEN signal becomes inactive
(stops). This indicates the end of the signature calculation
for a horizontal line. HSIGEN is an internal block signal.
The SIG_ENABLE control to the video signature analyzer
is enabled by the logical AND of VSIGEN and HSIGEN.

STRT: Start

-

Read/Write

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

RSVD

STOP

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

RSVD

STRT

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