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參數(shù)資料
| 型號： | SAA5296PS/NNN |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP52 |
| 封裝： | 0.600 INCH, PLASTIC, SDIP-52 |
| 文件頁數(shù)： | 4/72頁 |
| 文件大?。?/td> | 498K |
| 代理商： | SAA5296PS/NNN |
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1998 Dec 14
12
Philips Semiconductors
Preliminary specication
Economy teletext and TV microcontrollers
SAA5x9x family
7.3.5
6-BIT PWM DACS
Eight 6-bit DACs are available to allow direct control of analog parts 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 Port 3.4. The PWE bit in the SFR for the port corresponding to the PWM
output should be set to logic 1 for correct operation of the PWM output, 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=0to7)
76543210
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 a logic 0, the port pin is controlled by the corresponding bit in
the port SFR.
6
Not used.
5
PV5
The output of the PWM is a pulse of period 21.33
s with a pulse HIGH time determined
by the binary value of these 6-bits multiplied by 0.33
s. PV5 is the most significant bit.
4
PV4
3
PV3
2
PV2
1
PV1
0
PV0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SAA5497PS/NNN | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP52 |
| SAA5491H/NNN | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP80 |
| SAA5532PS/NNNN | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PDIP52 |
| SAA5551PS/NNNN | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PDIP52 |
| SAA5500PS/NNNN | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PDIP52 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SAA5296XP/NV | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Teletext Circuit |
| SAA5296ZP/NNN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Teletext Circuit |
| SAA5297 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5297A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
| SAA5297AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Economy teletext and TV microcontrollers |
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