HMP8115 Intersil Corporation, HMP8115 Datasheet - Page 13

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HMP8115

Manufacturer Part Number
HMP8115
Description
Ntsc/pal Video Decoder
Manufacturer
Intersil Corporation
Datasheet
If 16-bit YCbCr, 15-bit RGB data, or 16-bit RGB data is gen-
erated, it is output following the rising edge of CLK2 while
DVALID is asserted. Either linear or gamma-corrected RGB
data may be output. The pixel output timing is shown in Fig-
ures 12 to 15.
NOTES:
11. Y
12. BLANK is asserted per Figure 9.
NOTE:
13. BLANK is asserted per Figure 9.
DVALID
BLANK
P15-P8
[P14-P10]
P7-P0
CLK
every cycle due to the 4:2:2 subsampling.
P15-P11
[P9-P5]
DVALID
P10-P5
0
P4-P0
is the first active luminance pixel data of a line. Cb
CLK
FIGURE 13. OUTPUT TIMING FOR 16-BIT [15-BIT] RGB MODE (DVLD_LTC = 0, DVLD_DCYC = 0)
t
DVLD
FIGURE 12. OUTPUT TIMING FOR 16-BIT YCbCr MODE (DVLD_LTC = 0, DVLD_DCYC = 0)
t
DVLD
Cb
Y
0
0
G
B
R
0
0
0
Cr
Y
0
1
G
B
R
1
1
1
0
and Cr
HMP8115
0
are first active chrominance pixel data in a line. Cb and Cr will alternate
13
BLANK, HSYNC, VSYNC, DVALID, VBIVALID, and FIELD
are output following the rising edge of CLK2. When BLANK
is asserted and VBIVALID is deasserted, the YCbCr outputs
have a value of 16 for Y and 128 for Cb and Cr; the RGB out-
puts have a value of 0.
Cb
Y
2
2
G
B
R
2
2
2
Cr
Y
2
3
G
B
R
3
3
3
Cb
Y
4
4
G
B
R
4
4
4

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