HMP8154 Intersil Corporation, HMP8154 Datasheet - Page 10

• Manufacturer Part Number: HMP8154
• Description: Ntsc/pal Encoders
• Manufacturer: Intersil Corporation

16-Bit YCbCr, 16-Bit RGB, 24-Bit RGB Formats
with Flicker Filtering
When the 16-bit YCbCr, 16-bit RGB, or 24-bit RGB data
format is selected and flicker filtering is enabled, pixel and
overlay data is latched on every rising edge of CLK2. The
pixel and overlay input timing is shown in Figures 9-11.
(OUTPUT)
(OUTPUT)
(OUTPUT)
OL0-OL2,
OL0-OL2,
(INPUT)
(INPUT)
(INPUT)
BLANK
BLANK
BLANK
BLANK
BLANK
BLANK
P8-P15
M1, M0
P0-P15
M1, M0
P0-P23
P0-P7
CLK2
CLK2
CLK2
FIGURE 9. PIXEL AND OVERLAY INPUT TIMING - 16-BIT YCBCR WITH FLICKER FILTERING
FIGURE 10. PIXEL AND OVERLAY INPUT TIMING - 16-BIT RGB WITH FLICKER FILTERING
FIGURE 11. PIXEL AND OVERLAY INPUT TIMING - 24-BIT RGB WITH FLICKER FILTERING
10
PIXEL 0
PIXEL 0
RGB 0
RGB 0
Cb 0
Y 0
PIXEL 1
PIXEL 1
RGB 1
RGB 1
Cr 0
Y 1
HMP8154, HMP8156A
PIXEL 2
PIXEL 2
RGB 2
RGB 2
Cb 2
Y 2
PIXEL 3
PIXEL 3
RGB 3
RGB 3
Cr 2
Y 3
As inputs, BLANK, HSYNC, and VSYNC are latched on
each rising edge of CLK2. As outputs, BLANK, HSYNC, and
VSYNC are output following the rising edge of CLK2. If the
CLK pin is configured as an input, it is ignored. If configured
as an output, it is one-half the CLK2 frequency.
PIXEL 4
PIXEL 4
RGB 4
RGB 4
Cb 4
Y 4
PIXEL 5
PIXEL 5
RGB 5
RGB 5
Cr 4
Y 5
PIXEL N
PIXEL N
RGB N
RGB N
Cr N-1
Y N