Texas Instruments DM38x DaVinci, Руководство пользователя

Страница: 112 / 956

( )
( )
(
)
4095
10
1000 2089
14 1400
0
Y
LSB
A mV
mV
S
= × × =
=
1
0
255
0
308 60 157
1
152 229 77
64
270 52 322
Y
Y G S
U A B
V R
G
B
R
     
     
= • • +
     
     
     
   
   
= − −
   
   
− −
   
M
( )
( )
( )
( )
( )
( )
( )
(
)
( )
4095
10
1000 92.5% 1932.6
14 1400
4095
10
1000 7.5% 157
14 1400
4095
4
1000 836
14 1400
Y
LSB
A mV
mV
LSB
S mV
mV
LSB
Sync mV
mV
= × × × =
= × × × =
= × × =
1
0
255
0
285 55 145 157
1
140 211 71 0
64
250 48 298 0
Y
Y G S
U A B
V R
G
B
R
     
     
= • • +
     
     
     
     
     
= − − +
     
     
− −
     
M
Internal Modules
www.ti.com
112 SPRUHI7A – December 2012 – Revised June 2016
Submit Documentation Feedback
Copyright © 2012–2016, Texas Instruments Incorporated
High-Definition Video Processing Subsystem (HDVPSS)
Example 1-1. Full-range RGB [0…255] to YUV 10:4 Picture Sync Ratio with 7.5% Setup
In this example, it is assumed that DAC is configured to have maximum amplitude of 1400 mV.
This coefficient set is preset by default for the CVBS CSC registers.
Example 1-2. Full-range RGB to YUV 10:4 Picture Sync Ratio with Zero Setup