參數(shù)資料
型號: 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): 82/92頁
文件大?。?/td> 567K
代理商: VPX322XE
ADVANCE INFORMATION
VPX 322xE
82
Micronas
FP-RAM VPX Back-End
Name
Default
Function
Mode
Number
of Bits
Address
Hex
h
130
12
w/r
Selection for peaking/coring
0
peaking2
bit[1:0]:
coring
subtracts LSBs of the higher frequency part of the video
signal
00: subtract 0 LSBs
01: subtract 1/2 LSB
10: subtract 1 LSB
11: subtract 2 LSBs
bit[4:2]:
peaking
an implemented peaking filter supports sharpness control
with up to eight steps:
000:no peaking
001:low peaking
111: high peaking
bit[5]:
Bypass Lowpass
bit[6]:
Bypass Skewfilter
bit[7]:
Bypass Skewfilter VACT
bit[8]:
Swapping of Chroma values
0
C
b
-Pixels first
1
C
r
-Pixels first
bit[10:9]:
Peaking frequency
00
low frequency
01
middle frequency
10
high frequency
01
bit[11]:
reserved (must be set to zero)
h
131
12
w/r
Brightness
0
bit[7:0]:
Brightness Level
offset value added to the video samples
brightness can be selected in 256 steps within the range
128...127 (2
s complement):
128:
128
127: 127
brightness2
bit[10:8]:
reserved (must be set to zero)
bit[11]:
Limit Luminance data to
16
lim16_2
h
132
12
w/r
Contrast
32
contrast2
bit[5:0]:
Contrast Level
linear scale factor for luminance (default = 1.0)
[5]
integer part
[4:0]fractional part
contr1
bit[7:6]:
Noise Shaping
Control for 10-bit to 8-bit conversion (default: rounding)
00: 9-bit to 8-bit via 1-bit rounding
01: 9-bit to 8-bit via truncation
10: 9-bit to 8-bit via 1-bit accumulation
11: 10-bit to 8-bit via 2-bit accumulation
noise1
bit[8]:
Contrast Brightness: Clamping Level
0
clamping level = 32,
1
clamping level = 16
(should normally be set to 1)
clamp1
bit[9]:
Bypass Brightness Adder
bribyp1
bit[10]:
Bypass Contrast Multiplier
conbyp1
bit[11]:
reserved (must be set to zero)
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