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NXP Semiconductors
PNX15xx/952x Series
Volume 1 of 1
Chapter 19: Memory Based Scaler
PNX15XX_PNX952X_SER_N_4
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 4.0 — 03 December 2007
19-605
29:28
CKEY_A2K
R/W
0
Alpha mode to color key convert
00 = no alpha manipulation
01 = reserved
10 = reserved
11 = alpha to color key convert
Samples with alpha component below 80 (hex) are replaced with
values dened in CKEY_COMP 1-3.
27:26
CKEY_REPLACE
R/W
0
Color keying replace mode
00 = no color component manipulation
01 = replace keyed color components with black (10, 10, 10)
10 = replace keyed color components with gray (80, 80, 80)
11 = replace keyed color components with last non-key value
25:24
Reserved
23: 16 CKEY_MASK1
R/W
0
Color key mask component 1
Denes bits of color component that are compared against color key
value setting to key sample.
15: 8
CKEY_MASK2
R/W
0
Color key mask component 2
Denes bits of color component that are compared against color key
value setting to key sample.
7: 0
CKEY_MASK3
R/W
0
Color key mask component 3
Denes bits of color component that are compared against color key
value setting to key sample.
Offset 0x10 C284
Color Key Components
31: 24 CKEY_ALPHA
R/W
0
Alpha value
Denes the alpha value to be used for keyed samples.
23: 16 CKEY_COMP1
R/W
0
Color key component 1
Denes value of color key for component 1 (red or Y).
15: 8
CKEY_COMP2
R/W
0
Color key component 2
Denes value of color key for component 2 (green or U).
7: 0
CKEY_COMP3
R/W
0
Color key component 3
Denes value of color key for component 3 (blue or V).
Video Output Format Control Registers
Offset 0x10 C300
Video Output Format
31:30
PSU_BAMODE
R/W
0
Base address mode
00 = single set (e.g. progressive video source)
base 1-3 according to number of planes (plane 1-3)
01 = alternate sets each line (e.g. anti-icker mode)
base 1-3, rst line out, etc. (plane 1-3)
base 4-6, second line out, etc. (plane 1-3)
1x = reserved
29:14
Reserved
13
PSU_ENDIAN
R/W
0
Output format endian mode
0: same as system endian mode
1: opposite of system endian mode
12
Reserved
Table 8: Memory Based Scaler (MBS) Registers …Continued
Bit
Symbol
Acces
s
Value
Description