140
Bits 7 and 6—TV Sync Mode (TVM1, TVM0): These bits specify TV sync mode, in
which synchronous operation is performed by means of
HSYNC
and
VSYNC
input from an
external source, or master mode, in which
HSYNC
and
VSYNC
are output.
Bit 7:
T V M 1
Bit 6:
T V M 0
Description
0
0
Master mode is set. The Q2 outputs
HSYNC
,
VSYNC
, and ODDF signals.
1
Synchronization system switching mode is set. Switching is performed
from TV sync mode to master mode, or vice versa, via this mode.
In this mode, display operations are forcibly halted and the DISP pin
output goes low. The clock supply to the CLK1 pin can also be stopped
(input invalidated) (fixed high within the chip).
The
HSYNC
,
VSYNC
, and ODDF pins are inputs.
1
0
TV sync mode is set.
HSYNC
,
VSYNC
, and ODDF signals are input to the
Q2.
(Initial value)
1
Setting prohibited
Bits 5 and 4—Scan Mode (SCM1, SCM0): These bits specify the display output scan
mode and the unit of display switching.
Bit 7:
T V M 1
Bit 6:
T V M 0
Description
0
0
Non-interlace mode: Frame buffer switching can be performed in 1-VC
units.
1
Setting prohibited
1
0
Interlace mode: Frame buffer switching can be performed in 2-VC units.
1
Interlace sync & video mode: Frame buffer switching can be performed in
1-VC units.
Содержание HD64411 Q2
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Страница 108: ...101 Example 0 0 Work coordinates Rendering coordinates XC YC ...
Страница 110: ...103 Example Old XC YC Old XC XC old YC YC 0 0 Work coordinates Rendering coordinates XC YC ...
Страница 112: ...105 Example 0 0 Work coordinates Rendering coordinates XO1 YO1 XO1 DX2 YO1 DY2 XO1 DX1 YO1 DY1 LINE ...
Страница 116: ...109 Example 0 0 Work coordinates Rendering coordinates XMIN YMIN XMAX YMAX ...
Страница 118: ...111 Example 0 0 Work coordinates Rendering coordinates XMAX YMAX ...
Страница 120: ...113 Example 0 0 Work coordinates XMIN YMIN XMAX YMAX ...
Страница 129: ...122 ...
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Страница 213: ...206 Figure 7 20 TV Sync Mode Display Timing When DOT 0 or DOT 1 and EXHSYNC cycle is even multiple of CLK1 cycle ...