參數(shù)資料
型號： SAA7146AH
廠商： NXP SEMICONDUCTORS
元件分類： 消費家電
英文描述： .012UF/400VDC METAL POLY CAP
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP160
封裝： 28 X 28 MM, 3.40 MM HEIGHT, PLASTIC, SOT322-2, MS-022, QFP-160
文件頁數(shù)： 97/144頁
文件大?。?/td> 645K
代理商： SAA7146AH
1998 Apr 09
97
Philips Semiconductors
Product specification
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
SAA7146A
Table 89
Clip control
OFFSET
NAME
ClipCK
BIT
TYPE
RW
DESCRIPTION
78H
15 to 10
9 and 8
reserved
clipping by chroma key CK
(or MSB of
α
-8): OR-ed with other clip
list or clip-bit mask, if ClipMode is enabled
00: chroma key CK is not used for clipping, CK
→ α
01: chroma key CK is not used for clipping, inverted CK
→ α
10: clipping, based on chroma key CK bit
11: clipping, based on chroma key CK bit inverted
reserved
clipping based on DMA2 read information
: OR-ed with chroma
key CK, if ClipCK is enabled
000: no clipping based on DMA2 read, DMA2 can be used to write
decomposed format U
001: no clipping based on DMA2 read; DMA2 reads 8-bit-
α
to
substitute CK in
α
-formats
010: reserved
011: reserved
100: clipping, based on pixel clip list, rectangular overlays
101: clipping, based on pixel clip list, rectangular overlays,
inverted
110: clipping, based on pixel clip bit mask 1-bit/pixel
111: clipping, based on pixel clip bit mask 1-bit/pixel, inverted
select interlaced mode for rectangular overlays
:
0: normal mode
1: interlaced mode, this bit must be set if only one clip list for both
fields is available. This function assumes that the ODD field is
always above the EVEN field.
reserved
use of DMA3
to report (write) key of clip information back:
00: no clip output, DMA3 can be used to write decomposed format
V, or to serve BRS, read or write
01: DMA3 writes chroma key information CK; 1-bit/pixel
10: DMA3 writes back (clip mask-CK); 1-bit /pixel
11: DMA3 writes applied pixel clipping back; 1-bit/pixel
7
ClipMode
6 to 4
RW
RecInterl
3
RW
2
ClipOut
1 and 0
RW
7.13
Scaler event description
The RPS is controlled by the PAUSE command on special
events. This section describes the video events. Because
of these video events a defined time for an upload is given.
Table 90 shows the UPLOAD handling for the scaler
registers. For special applications it can also be useful to
select other combinations. For this the termination of the
UPLOAD must guarantee that the UPLOAD is completed
before the processing restarts, e.g. with a new line or a
new field. To avoid conflicts, e.g. change of vertical
settings during vertical processing, the MASKWRITE
command can be used to change single bits within a
Dword. Each video event can force only one upload at a
time. This means that the video event is cleared by the
circuit as described below, if the corresponding upload has
occurred.
相關(guān)PDF資料
PDF描述
SAA7146A Multimedia bridge, high performance Scaler and PCI circuit SPCI
SAA7151 Digital multistandard colour decoder with SCART interface DMSD2-SCART
SAA7151B Digital multistandard colour decoder with SCART interface DMSD2-SCART
SAA7157 Clock signal generator circuit for digital TV systems SCGC
SAA7157T Clock signal generator circuit for digital TV systems SCGC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7146AH/V3,557 制造商:NXP Semiconductors 功能描述:
SAA7146AH/V4,557 功能描述:視頻 IC VIDEO PCI BRIDGE (QFP160) RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
SAA7146AH-V4.557 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multimedia bridge, high performance Scaler and PCI circuit
SAA7146AHZ 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multimedia bridge, high performance Scaler and PCI circuit SPCI
SAA7151 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital multistandard colour decoder with SCART interface DMSD2-SCART
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