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常见问答
如何使用EBI与i80接口的LCD Module连接? 日期:2018-11-22
EBI 连接 i80 接口的 LCD Module 需要用到的脚位如下:
EBI_AD [ 15:0 ]:数据传输的引脚 ( EBI data bus )
(16 bit 数据宽度,EBI 接口需使用 EBI_AD [ 15 : 0 ];若 8 bit 数据宽度,EBI 接口需使用 EBI_AD [ 7 : 0 ])
EBI_nCSx:从设备使能信号,由主设备控制 ( EBI chip select output )
EBI_nRD:EBI 读取使能引脚 ( EBI read enable output )
EBI_nWR:EBI 传输使能引脚 ( EBI write enable output )
以 LCD Module ( LCDT24963701 ) 举例说明如下:
DB:数据线 ( Data Bus )
nCS:LCD 驱动芯片片选信号 ( LCD chip select output )
RS:寄存器选择,RS = 1:写数据;RS = 0:写命令
RST:LCD 驱动芯片复位信号
RD:读允许信号
WR:写允许信号
LED:背光控制引脚
X+:触摸屏 XL
X-:触摸屏 XR
Y+:触摸屏 YU
Y-:触摸屏 YD
其范例程序可参考以下网址
https://www.nuvoton.com/hq/resource-download.jsp?tp_GUID=EC0120180326104843
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功能: | Peripherals,I/O,External Bus Interface (EBI) |