saa7146a NXP Semiconductors, saa7146a Datasheet - Page 90

• Manufacturer Part Number: saa7146a
• Description: Multimedia Bridge, High Performance Scaler And Pci Circuit Spci
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 87 HPS output and formats
Table 88 Output formats
2004 Aug 25
78
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
OFFSET
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
(HEX)
CODE (HEX)
matrix
outformat 27 to 24
SHIFT
DITHER
NAME
31 and 30 RW
29 and 28
23 and 22 RW
21 and 20 RW
17
16
YUV 4 : 2 : 2, (16 = 8
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
YUV9 (4
reserved
Y1
Y2
YUV1
BIT
2
:1:1) INDEO-9, de-composed.
RW
RW
RW
TYPE
2
:1:1) MPEG, de-composed.
8), composed
YUV to RGB conversion, gamma compensation
reserved
output format, depends on matrix programming; see Table 88
chroma line select for INDEO-9
chroma pixel select for INDEO-9
dither: applies only to formats with reduced bit resolution, (#) that
derived from higher bit resolution formats:
00: no YUV to RGB conversion
01: reserved
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
1: dither is applied by ‘linear’ one-dimensional error diffusion
0: dither algorithm is not applied, just truncation
90
OUTPUT FORMAT
DESCRIPTION
RGB16 (5 : 6 : 5), composed, #
RGB24, composed, ‘packed’
RG B15 (5 : 5 : 1 : 5), composed, #
reserved
reserved
RGB8 (3 : 3 : 2), pseudo CLUT, #
reserved
reserved
reserved
reserved
reserved
reserved
reserved
reserved
RGB32 (8 : 8 : 8 : 8), composed
RGB15 (1 : 5 : 5 : 5), composed, #
10: YUV to RGB conversion
linear
11: YUV to RGB conversion
with compensation of
gamma-pre-correction
Product specification
SAA7146A