adv7718 Analog Devices, Inc., adv7718 Datasheet - Page 19

• Manufacturer Part Number: adv7718
• Description: Integrated Digital Ccir-601 Pal/ntsc Video Encoder
• Manufacturer: Analog Devices, Inc.

Mode 3: Master/Slave Option HSYNC, BLANK, FIELD
(Timing Register 0 TR0 = X X X X X 1 1 0 or X X X X X 1 1 1)
In this mode, the ADV7177/ADV7178 accepts or generates Horizontal SYNC and Odd/Even FIELD signals. A transition of the
FIELD input when HSYNC is high indicates a new frame, i.e., vertical retrace. The BLANK signal is optional. When the BLANK
input is disabled, the ADV7177/ADV7178 automatically blanks all normally blank lines as per CCIR-624. Mode 3 is illustrated in
Figure 18 (NTSC) and Figure 19 (PAL).
HSYNC
BLANK
HSYNC
BLANK
FIELD
FIELD
522
DISPLAY
260
DISPLAY
HSYNC
BLANK
VSYNC
PIXEL
DATA
523
261
524
262
PAL = 12
NTSC = 16
263
525
264
1
CLOCK/2
CLOCK/2
265
EVEN FIELD
2
ODD FIELD
266
3
PAL = 132
NTSC = 122
ODD FIELD
EVEN FIELD
267
4
CLOCK/2
CLOCK/2
268
5
VERTICAL BLANK
VERTICAL BLANK
PAL = 864
NTSC = 858
269
6
Cb
270
7
CLOCK/2
CLOCK/2
Y
271
8
Cr
272
9
Y
273
10
Cb
ADV7177/ADV7178
274
11
283
20
284
21
DISPLAY
DISPLAY
285
22