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參數(shù)資料
| 型號： | MC141543 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Advanced Monitor On-Screen Display |
| 中文描述： | 先進的顯示器屏幕顯示 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 469K |
| 代理商： | MC141543 |
MC141543
10
MOTOROLA
Although there are 30 character display registers that can
be programmed for each row, not every programmed charac-
ter can be shown on the screen in 320–dot resolution. Usual-
ly only 24 characters can be shown in this resolution at most.
This is induced by the time that is required to retrace the H
scan line. In other resolutions, 480–dot and 640–dot, a total
of 30 characters can be displayed on the screen if the hori-
zontal delay register is set properly.
Figure 9 illustrates the timing of all output signals as a
function of window and fast–blanking features. Line 3 of all
three characters is used to illustrate the timing signals. The
shaded area depicts the window area. The characters on the
left and right appear identical except for the FBKGC bit. The
middle character does not have a window as its background.
Notice that signal HTONE/PWMCK is active only in the win-
dow area. Timing of the signal FBKG depends on the config-
uration of the FBKGC bit. The configuration of the FBKGC bit
affects only the FBKG signal timing; it has no effect on the
timing of HTONE/PWMCK. Waveform ‘R, G, or B’, which is
the actual waveform at R, G, or B pin, is the logical OR of
waveform ‘character R, G, or B’ and waveform ‘window R, G,
or B’. ‘Character R, G, or B’ and ‘window R, G, or B’ are inter-
nal signals for illustration purpose only. Also notice that
HTONE/PWMCK has exactly the same waveform as ‘win-
dow R, G, or B’.
ììììììì
ììììììì
ììììììì
ììììììì
ììììììì
ììììììì
ììììììì
H
F
F
C
ììììììì
ììììììì
ììììììì
ììììììì
ììììììì
ììììììì
ììììììì
F
C
L
W
C
R
Figure 9. Timing of Output Signals as a Function
of Window and FBKGC Bit Features
FONT
Icon Combination
MC141543 contains 128–character ROM. The user can
create an on–screen menu based on those characters and
icons. Refer to Table 3 for icon combinations. Addresses $00
and $7F are predefined characters, and $7E is for testing.
They cannot be modified in any AMOSDs.
Table 3. Combination Map
ICON
ROM ADDRESS (HEX)
Vertical Sizing
Volume Bar I
01, 02, 03, 04, 05, 06, 4A
Horizontal Sizing
5E, 5F
Vertical Position
60, 61
68, 69
6A, 6B
66, 67
62, 63
Pin Cushion
64, 65
Deguassing
Video Mode
Trapezoid
Parallelogram
Speaker
07, 08
ROM CONTENT
Figures 10 – 13 show the ROM content of MC141543.
Mask ROM is optional for custom parts.
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| MC141555DW3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Motorola Inc 功能描述: |
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| MC14161BCPD | 制造商:Motorola Inc 功能描述: |
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