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參數資料
| 型號： | W742C813 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 4-BIT, MROM, 3.58 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, 2.75 MM HEIGHT, QFP-100 |
| 文件頁數： | 38/56頁 |
| 文件大小： | 455K |
| 代理商： | W742C813 |
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W742E/C813
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Bit 0 = 1 Signal change at RD.0
Bit 1 = 1 Signal change at RD.1
Bit 2 = 1 Signal change at RD.2
Bit 3 = 1 Signal change at RD.3
5.21 Output Port RE & RF
Output port RE and RF are used as output of the internal RT port. When the
MOV RE, R
or
MOV RF,
R
instruction is executed, the data in the RAM will be output to port RT through port RE or RF. They
provide high sink current to drive LED.
5.22 Input Port P1
Input port P1 is a multi-function input port. When the
MOVA R, P1
instruction is executed, the P1 data
will be get to the RAM and A register. The P1.2 and P1.3 can be configurated as the external interrupt
INT0 and INT1 by set P1EF.2 and P1EF.3.
5.23 DTMF Output Pin (DTMF)
W742E/C813 provides a DTMF generator which outputs the dual tone multi-frequency signal to the
DTMF pin. The DTMF generator can work well at the operating frequency of 3.58 MHz. A DTMF
register specify the desired low/high frequency. And the Dual Tone Control Register (DTCR) can
control whether the dual tone will be output or not. The tones are divided into two groups (low group
and high group). The relation between the DTMF signal and the corresponding touch tone keypad is
shown in Figure 5-16.
C1
Row/Col
Frequency
R1
697 Hz
R2
770 Hz
R3
852 Hz
R4
941 Hz
C1
1209 Hz
C2
1336 Hz
C3
1477 Hz
C4
1633 Hz
Figure 5-16 The relation between the touch tone keypad and the frequency
1
2
3
A
4
5
6
B
7
8
9
C
*
0
#
D
R1
R2
R3
R4
C2
C3
C4
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W742C814 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4 BIT MICROCONTROLLER |
| W742C816 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| W742C818 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| W742C81A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
| W742CE811 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
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