ADV7174/ADV7179
HSYNC
BLANK
HSYNC BLANK
, FIELD
Mode 1: Slave Option
,
input when
retrace. The
is low indicates a new frame, i.e., vertical
BLANK
signal is optional. When the
input
(Timing Register 0 TR0 = X X X X X 0 1 0)
is disabled, the ADV7174/ADV7179 automatically blanks all
normally blank lines as per CCIR-624. Mode 1 is illustrated in
Figure 24 (NTSC) and Figure 25 (PAL).
In this mode, the ADV7174/ADV7179 accepts horizontal
SYNC and odd/even FIELD signals. A transition of the FIELD
DISPLAY
DISPLAY
VERTICAL BLANK
522
523
524
525
20
21
22
1
2
3
4
6
7
8
10
11
5
9
HSYNC
BLANK
FIELD
ODD FIELD
EVEN FIELD
DISPLAY
DISPLAY
VERTICAL BLANK
283
285
284
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
HSYNC
BLANK
FIELD
ODD FIELD EVEN FIELD
Figure 24. Timing Mode 1 (NTSC)
DISPLAY
DISPLAY
VERTICAL BLANK
622
623
624
625
1
2
3
4
6
7
5
21
22
23
HSYNC
BLANK
FIELD
ODD FIELD
EVEN FIELD
DISPLAY
DISPLAY
VERTICAL BLANK
309
310
311
312
313
314
315
316
318
319
320
317
334
335
336
HSYNC
BLANK
FIELD
ODD FIELD
EVEN FIELD
Figure 25. Timing Mode 1 (PAL)
Rev. B | Page 20 of 52
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