vpx3224d ETC-unknow, vpx3224d Datasheet - Page 76

• Manufacturer Part Number: vpx3224d
• Description: Video Pixel Decoders
• Manufacturer: ETC-unknow

76
VPX 3225D, VPX 3224D
Address
Hex
h’126
h’127
h’128
Number
of Bits
12
12
12
Mode
w
w
w
Selection for peaking/coring
bit [1:0]:
bit [4:2]:
bit [5]:
bit [6]:
bit [7]:
bit [8]:
bit [11:9]: reserved (must be set to zero)
Brightness
bit [7:0]:
bit [11:8]: reserved (must be set to zero)
Contrast
bit [5:0]:
bit [7:6]:
bit [8]:
(should normally be set to 1)
bit [9]:
bit [10]:
bit [11]:
Function
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
peaking
an implemented peaking filter supports sharpness control
with up to eight steps:
000: no peaking
001: low peaking
111: high peaking
Bypass Lowpass
Bypass Skewfilter
Bypass Skewfilter VACT
Swapping of Chroma values
0
1
Brightness Level
offset value added to the video samples
brightness can be selected in 256 steps within the range
–127 ... 128 (binary offset format):
0:
255: 128
Contrast Level
linear scale factor for luminance (default = 1.0)
[5] integer part
[4:0] fractional part
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
Contrast Brightness: Clamping Level
0
1
Bypass Brightness Adder
Bypass Contrast Multiplier
reserved (must be set to zero)
FP-RAM VPX Back-End
Cb-Pixels first
Cr-Pixels first
–127
clamping level = 32,
clamping level = 16
PRELIMINARY DATA SHEET
Default
0
0
32
Name
peaking1
brightness1
contrast1
contr1
noise1
clamp1
bribyp1
conbyp1
Micronas