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參數資料
| 型號： | PCA8514T |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Stand-alone OSD |
| 中文描述： | 單機OSD |
| 文件頁數： | 22/64頁 |
| 文件大?。?/td> | 322K |
| 代理商： | PCA8514T |
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1995 Nov 27
22
Philips Semiconductors
Product specification
Stand-alone OSD
PCA8514
9.9
Command 8
Table 26
Command 8 format
Command 8 loads Control Register 2 with data that
selects the input polarity of HSYNC and VSYNC (see
Fig.14) and also selects the Display modes.
Table 27
Selection of input polarity of HSYNC/VSYNC
Table 28
Selection of Display Mode
BS1 BS0
7
6
5
4
3
2
1
0
0
1
0
1
0
1
Hp
Vp
S1
S0
Hp/Vp
INPUT POLARITY
0
1
active LOW (the default setting)
active HIGH
S1
S0
DISPLAY MODE
0
0
Mode 0: this is the No background mode.
The OSD characters are superimposed on
the TV video signals (see Fig.15).
Mode 1: this is the North-West shadowing
mode; available only with character sizes
2V/2H or 4V/4H. The shadows are
generated as if a light source was placed
North-West of the character (see
Figs 16 to 18). The shadows generated lie
within 18 rows in a vertical direction but can
be extended by one bit to the next
characters first column, in a horizontal
direction (see Figs 19 and 20).
Mode 2: this is the Box shadowing mode. A
background dot matrix of 12
×
18 bits
surrounds the character font; see
Figs 21 and 22.
Mode 3: this is the Frame shadowing
(raster blanking) mode. A background
colour fills the whole screen when no bit
patterns are being displayed (see Fig.23).
1 of 16 background colours can be selected
using Command F; the default background
colour is Blue.
0
1
1
0
1
1
9.10
Command 9
Table 29
Command 9 format
This command loads Control Register 3 with data that
controls both the character blinking frequency and the
active ratio of the character blinking frequency.
Figures 25 to 29 show how blinking influences the display
in different display modes.
Table 30
Selection of Blinking frequency
Table 31
Selection of active ratio of character blinking
BS1 BS0
7
6
5
4
3
2
1
0
0
1
0
1
1
0
BF1
BF0
BR1
BR0
BF1 BF0
BLINKING FREQUENCY (Hz)
0
0
; this is the default setting
0
1
1
0
1
1
BR1 BR0
ACTIVE RATIO
0
0
1
1
0
1
0
1
3 : 1 (the default setting)
1 : 1
1 : 3
reserved
f
16
----------------
f
----32
f
64
-----------------
f
128
-----------------
相關PDF資料 |
PDF描述 |
|---|---|
| PCA8515 | Stand-alone OSD |
| PCA8515P | Stand-alone OSD |
| PCA8515T | Stand-alone OSD |
| PCA8516T | Stand-alone OSD |
| PCA8516 | Stand-alone OSD |
相關代理商/技術參數 |
參數描述 |
|---|---|
| PCA8515 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Stand-alone OSD |
| PCA8515P | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Stand-alone OSD |
| PCA8515T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Stand-alone OSD |
| PCA8515T/009 | 制造商:NXP Semiconductors 功能描述:ON-SCREEN DISPLAY IC, PDSO24 |
| PCA8516 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Stand-alone OSD |
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