參數(shù)資料
型號(hào)： VPX322XE
廠商： MICRONAS SEMICONDUCTOR HOLDING AG
英文描述： Video Pixel Decoders
中文描述： 視頻解碼器像素
文件頁數(shù)： 79/92頁
文件大?。?/td> 567K
代理商： VPX322XE
ADVANCE INFORMATION
VPX 322xE
79
Micronas
Table 6
–
5:
FP-RAM VPX Back-End
FP-RAM VPX Back-End
Address
Hex
Number
of Bits
Mode
Function
Default
Name
Read Table for Window #1
h
’
10f
12
r
Position of VACT
bit[11:1]:
Delay of VACT relative to the trailing edge of HREF
vact_delay1
Load Table for Window #1 (WinLoadTab1)
h
’
120
12
w/r
Vertical Begin
12
bit[8:0]:
Vertical Begin (first active video line within a field)
min. line number for 625/50 standards: 7
min. line number for 525/60 standards: 10
max. line number: determined by current TV line standard
vbeg1
bit[11:9]:
reserved (must be set to zero)
h
’
121
12
w/r
Vertical Lines In
0
bit[8:0]:
Number of input lines
determines the range between the first and the last active
video line within a field; vbeg + vlinei should not exceed the
max. number of lines determined by the current line
standard (exceeding values will be corrected automatically)
vlinei1
bit[9]:
enable temporal decimation (0: off, 1: on)
with temporal decimation enabled, only the number of frames
selected in register h
’
157 (tdecframes) will be output within
an interval of 3000 frames
tdec1
bit[11:10]: field disable flags
11
10
01
00
Window disabled
Window enabled in ODD fields only
Window enabled in EVEN fields only
Window enabled in both fields
h
’
122
12
w/r
Vertical Lines Out
0
bit[8:0]:
Number of output lines
vlineout cannot be greater than vlinein (no interpolation);
for vlineout < vlinein vertical compression via line dropping
is applied
vlineo1
bit[11:9]:
reserved (must be set to zero)
h
’
123
12
w/r
Horizontal Begin
0
bit[10:0]:
Horizontal start of window after scaling (relative to npix)
hbeg > 0 enables cropping on the left side of the window
hbeg1
bit[11]:
reserved (must be set to zero)
h
’
124
12
w/r
Horizontal Length
704
bit[10:0]:
Horizontal length of window after scaling (relative to npix)
hbeg + hlen cannot exceed npix
hlen1
bit[11]:
reserved (must be set to zero)
h
’
125
12
w/r
Number of Pixels
704
bit[10:0]:
Number of active pixels for the full active line (after scaling)
npix must be an even value within the range 32...864
npix1
bit[11]:
reserved (must be set to zero)
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