參數(shù)資料
型號(hào)： VPX3224E
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(yè)數(shù)： 20/92頁(yè)
文件大?。?/td> 616K
代理商： VPX3224E
ADVANCE INFORMATION
VPX 322xE
MICRONAS INTERMETALL
20
Table 2–4 shows the coding of the ancillary header in-
formation. The word I[2:0] contains a value for data type
identification (1 for sliced and 3 for raw data during odd
fields, 5 for sliced and 7 for raw data during even fields).
M[5:0] contains the MSBs and L[5:0] the LSBs of the
number of following D–words (32 for sliced data, 285 for
raw data). DC1 is normally used as secondary data ID.
The value 0 for M[5:0] in the case of sliced data marks
an undefined format. Bit[6](P) is even parity for bit[5] to
bit[0]. Bit[7] is the inverted parity flag. Note that the fol-
lowing user data words (video data) are either limited or
have odd parity to assure that 0 and 255 will not occur.
Bit[3] in FP-RAM 0x150 selects between these two op-
tions.
Table 2–4:
Coding of the ancillary header information
Bit No.
Word
MSB
LSB
7
6
5
4
3
2
1
0
Pream1
0
0
0
0
0
0
0
0
Pream2
1
1
1
1
1
1
1
1
Pream3
1
1
1
1
1
1
1
1
DID
NP
P
0
1
0
I2
I1
I0
DC1
NP
P
M5
M4
M3
M2
M1
M0
DC2
NP
P
L5
L4
L3
L2
L1
L0
constant during
horizontal blanking
Y = 10
hex
; C
r
= C
b
= 80
hex
C
b
Y C
r
Y ...
S
E
S
E
SAV: “start of active video” header
EAV: “end of active video” header
C
b
Y C
r
Y ...
Fig. 2–19:
Output of video or VBI data with embedded reference headers (according to ITU-R656)
VACT
Digital
Video Output
dependent on window size
current line length
Fig. 2–20:
Detailed data output (double clock mode)
C
rn–1
Y
n
C
r1
Y
2
C
bn–1
Y
n–1
C
b1
Y
1
SAV
1
SAV
2
SAV
3
SAV
4
10h
80h
80h
10h
EAV
1
EAV
2
EAV
3
EAV
4
DATA
(Port A)
VACT
LLC
PIXCLK
Fig. 2–21:
Output of VBI-data as ancillary data
dependent on VBI-window size
constant during
horizontal blanking
Y = 10
hex
; C
r
= C
b
= 80
hex
D
1
D
2
D
3
D
4
...
S
E
S
E
SAV: “start of active video” header
EAV: “end of active video” header
C
b
Y C
r
Y ...
VACT
Digital
Video Output
current line length
A
size of programmable VACT
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