參數(shù)資料
型號： SAA7146A
廠商： NXP Semiconductors N.V.
英文描述： Multimedia bridge, high performance Scaler and PCI circuit SPCI
中文描述： 多媒體橋梁，高性能潔牙機和PCI電路SPCI
文件頁數(shù)： 96/144頁
文件大小： 645K
代理商： SAA7146A
1998 Apr 09
96
Philips Semiconductors
Product specification
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
SAA7146A
Table 87
HPS output and formats
Table 88
Output formats
OFFSET
(HEX)
NAME
BIT
TYPE
DESCRIPTION
78
matrix
31 and 30
RW
YUV to RGB conversion, gamma compensation
00: no YUV to RGB conversion
10: YUV to RGB conversion
linear
11: YUV to RGB conversion
with compensation of
gamma-pre-correction
01: reserved
29 and 28
27 to 24
23 and 22
21 and 20
17
reserved
output format, depends on matrix programming; see Table 88
chroma line select for INDEO-9
chroma pixel select for INDEO-9
0: normal mode, all bytes stay MSB aligned
1: shift mode, ‘shift right’ of all bytes, fill MSB position with logic 0,
this mode has meaning only for output formats defined in bytes,
undefined result in non-byte modes
dither: applies only to formats with reduced bit resolution, (#) that
derived from higher bit resolution formats:
1: dither is applied by ‘linear’ one-dimensional error diffusion
0: dither algorithm is not applied, just truncation
outformat
RW
RW
RW
RW
SHIFT
DITHER
16
RW
CODE (HEX)
OUTPUT FORMAT
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
YUV 4 : 2 : 2, (16 = 8
8), composed
YUV 4 : 4 : 4, composed, ‘packed’
reserved
YUV 4 : 1 : 1, composed
YUV2
reserved
Y8, monochrome
YUV8 (4 : 2 : 2), pseudo CLUT, #
YUV 4 : 4 : 4, de-composed
YUV 4 : 2 : 2, de-composed
YUV 4 : 2 : 0 (2
2
:1:1) MPEG, de-composed.
YUV9 (4
2
:1:1) INDEO-9, de-composed.
reserved
Y1
Y2
YUV1
RGB16 (5 : 6 : 5), composed, #
RGB24, composed, ‘packed’
α
RGB32 (8 : 8 : 8 : 8), composed
α
RGB15 (1 : 5 : 5 : 5), composed, #
RG
α
B15 (5 : 5 : 1 : 5), composed, #
reserved
reserved
RGB8 (3 : 3 : 2), pseudo CLUT, #
reserved
reserved
reserved
reserved
reserved
reserved
reserved
reserved
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SAA7146AH/V3,557 制造商:NXP Semiconductors 功能描述:
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