參數(shù)資料
型號(hào): VPX3214
廠商: Electronic Theatre Controls, Inc.
英文描述: Video Pixel Decoders
中文描述: 視頻解碼器像素
文件頁數(shù): 31/80頁
文件大?。?/td> 752K
代理商: VPX3214
VPX 3220 A, VPX 3216 B, VPX 3214 C
PRELIMINARY DATA SHEET
MICRONAS INTERMETALL
31
I
2
C-Register Table
Name
Function
Mode
Number
of Bits
I
2
C Reg.
Address
Color Space Converter
E0
8
w
Alpha Keyer: Y
max
(VPX 3220 A and VPX 3216 B)
YMAX
bit [7:0] : Y
max
(Integer)
ymax
E1
8
w
Alpha Keyer: Y
min
(VPX 3220 A and VPX 3216 B)
YMIN
bit [7:0] : Y
min
(Integer)
ymin
E2
8
w
Alpha Keyer: C
b max
(VPX 3220 A and VPX 3216 B)
UMAX
bit [7:0] : C
b max
(2’s complement)
umax
E3
8
w
Alpha Keyer: C
b min
(VPX 3220 A and VPX 3216 B)
UMIN
bit [7:0] : C
b min
(2’s complement)
umin
E4
8
w
Alpha Keyer: C
r max
(VPX 3220 A and VPX 3216 B)
VMAX
bit [7:0] : C
r max
(2’s complement)
vmax
E5
8
w
Alpha Keyer: C
r min
(VPX 3220 A and VPX 3216 B)
VMIN
bit [7:0] : C
r min
(2’s complement)
vmin
E6
8
w
Contrast Brightness 1
CBM_BRI
bit [7:0] : Brightness Level (binary offset)
brightness
E7
8
w
Contrast Brightness 2
CBM_CON
bit [5:0] : Contrast Level .... linear scale factor for luminance
[5]
[4:0]
default = 1.0
integer part
fractional part
contrast
bit [7:6] : Noise Shaping .... Control for 10 bit to 8 bit conversion
0 0 :
0 1 :
1 0 :
1 1 :
9-bit to 8-bit via1-bit rounding
9-bit to 8-bit via truncation
9-bit to 8-bit via 1-bit error diffusion
10-bit to 8-bit via 2-bit error diffusion
noise
The control register modes are
– w: write/read register
– d: register is double latched
– A: register is available only in VPX 3220 A; VPX 3216 B returns valid ACK, although no internal action is performed
– r:
read-only register
The mnemonics used in the Intermetall VPX demo software are given in the last column.
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