參數資料
型號: SAA7146AHZ
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: Circular Connector; No. of Contacts:66; Series:MS27472; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:18; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:18-35 RoHS Compliant: No
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP208
封裝: PLASTIC, SOT-316, SQFP-208
文件頁數: 90/144頁
文件大?。?/td> 645K
代理商: SAA7146AHZ
1998 Apr 09
90
Philips Semiconductors
Product specification
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
SAA7146A
7.12.6
V
ERTICAL AND HORIZONTAL SCALING
Table 72
HPS, vertical scaling
OFFSET
(HEX)
NAME
BIT
TYPE
DESCRIPTION
60
YACM
31
RW
Y (vertical) scaler Accumulation (calculation) Mode of vertical
arithmetic
:
0: arithmetic operates as a linear phase interpolation (LPI)
1: arithmetic operates as accumulating FIR filter in vertical
direction.
Y scaler increment for vertical downscaling
:
YSCI = INT [1024
×
(N
IL
/N
OL
1) for YACM = 0
LPI
YSCI = INT [1024
×
(1
N
OL
/N
IL
)] for
YACM = 1
accumulation mode
N
IL
= number of qualified scaler input lines
N
OL
= number of output lines
accumulation sequence Length of the Y (vertical) processing
:
Defines vertical accumulation sequence length of input lines
If accumulation FIR filter mode is selected YACM, YACL has to
fit to the vertical scaling factor (defined by YSCI)
vertical start phase for vertical scaling of the ODD field
:
YPO = PHOL
×
128
(PHOL represents a phase offset with values between logic 0
and logic 1, where the logic 1 represents a distance between two
consecutive lines of the input pattern)
vertical start phase for vertical scaling of the EVEN field
:
YPE = PHOL
×
128
(PHOL represents a phase offset with values between logic 0
and logic 1, where the logic 1 represents a distance between two
consecutive lines of the input pattern).
reserved
YSCI
30 to 21
RW
YACL
20 to 15
RW
YPO
14 to 8
RW
YPE
7 to 1
RW
0
RW
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