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參數(shù)資料
| 型號： | SAA5288 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | TV Microcontroller with Full Screen On Screen Display (OSD)(帶全屏屏幕顯示的TV微控制器) |
| 中文描述： | 電視微控制器，帶有全屏幕顯示（OSD）（帶全屏屏幕顯示的電視微控制器屏） |
| 文件頁數(shù)： | 9/48頁 |
| 文件大?。?/td> | 508K |
| 代理商： | SAA5288 |
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1997 Jun 24
9
Philips Semiconductors
Preliminary specification
TV microcontroller with full screen
On Screen Display (OSD)
SAA5288
7.3.5
6-
BIT
PWM DAC
S
Eight 6-bit DACs are available to allow direct control of analogue sections of the television.
Each low resolution 6-bit DAC is controlled by its associated Special Function Register (PWM0 to PWM7). The PWM
outputs are alternative functions of Port 2 and P3.4. The PWE bit in the SFR for the port corresponding to the PWM
should be set to logic 1 for correct operation of the PWM, e.g. if PWM0 is to be used, P2.1 should be set to logic 1 setting
the port pin to high-impedance.
7.3.5.1
Pulse Width Modulator Registers (PWM0 to PWM7)
Table 3
Pulse Width Modulator Registers (see Table 10 for addresses)
Table 4
Description of PWMn bits (n = 0 to 7)
7
6
5
4
3
2
1
0
PWE
PV5
PV4
PV3
PV2
PV1
PV0
BIT
SYMBOL
DESCRIPTION
7
PWE
If PWE is set to a logic 1, the corresponding PWM is active and controls its assigned
port pin. If PWE is set to la logic 0, the port pin is controlled by the corresponding bit in
the port SFR.
not used
The output of the PWM is a pulse of period 21.33
μ
s with a pulse HIGH time determined
by the binary value of these 6-bits multiplied by 0.33
μ
s. PV5 is the most significant bit.
6
5
4
3
2
1
0
PV5
PV4
PV3
PV2
PV1
PV0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA5288PS | TV microcontroller with full screen On Screen Display OSD |
| SAA5290 | One page Economy Teletext/TV microcontroller |
| SAA5290A | Economy teletext and TV microcontrollers |
| SAA5290PS | Economy teletext and TV microcontrollers |
| SAA5290ZP | One page Economy Teletext/TV microcontroller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA5288PS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:TV microcontroller with full screen On Screen Display OSD |
| SAA5290 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5290A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5290PS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5290ZP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:One page Economy Teletext/TV microcontroller |
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