參數(shù)資料
型號: HT23B60
廠商: Holtek Semiconductor Inc.
英文描述: 60x11 Pixel Data Bank 8-Bit Mask MCU
中文描述: 60x11像素數(shù)據(jù)銀行8位微控制器面膜
文件頁數(shù): 30/50頁
文件大?。?/td> 314K
代理商: HT23B60
HT23B60
Rev. 1.10
30
March 1, 2004
Keyscan
LCD out port structure
For every Frame, each have a Common signal, all of which can generate a single interrupt. The Scan Key performs the
following:
The keyscan loop with 32kHz system frequency
The keyscan loop executes every 2 keyscan Int,.
After an Interrupt occurs, clear LCD segment output port
Turn on the PA Port s Pull-hi resistance
Turn on the LCD segment output port.
Use the LCD segment Output port and input port PA to implement the Key Scan
Take the Scan value and store into the Memory
Turn off the LCD segment output port transition to LCD segment output.
Turn off the PA pull-hi
Return to the main routine and change system frequency
The keyscan function have to be completed in the period of interrupt time.
The keyscan function is generated by common signal. When the LCD function is enable, the keyscan function can be
used.
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相關(guān)PDF資料
PDF描述
HT23B60-100QFP-A 60x11 Pixel Data Bank 8-Bit Mask MCU
HT23C010 CMOS 128K x 8-Bit Mask ROM(CMOS 128K x 8位掩模式ROM)
HT23C020 CMOS 256K x 8-Bit Mask ROM(CMOS 256K x 8位掩模式ROM)
HT23C040 CMOS 512K x 8-Bit Mask ROM(CMOS 512K x 8位掩模式ROM)
HT23C128 CMOS 16Kx 8-Bit Mask ROM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HT23B60-100QFP-A 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:60x11 Pixel Data Bank 8-Bit Mask MCU
HT23C010 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CMOS 128Kⅴ 8-Bit Mask ROM
HT23C020 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CMOS 256Kx 8-Bit Mask ROM
HT23C040 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CMOS 512Kx8-Bit Mask ROM
HT23C040H 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS 512K?8-Bit High Speed Mask ROM