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论述一种带I2C总线的LCD驱动电路,其特点是所有的PCF8577C芯片都并联在I2C总线上,单片机可对任一芯片和要显示的任一段字节寄存器直接寻址,直接传送显示数据.
Discusses a kind of LCD driver circuit with I2C bus, which features all the PCF8577C chips in parallel with the I2C bus. The microcontroller can directly address any chip and any section of byte registers to be displayed and directly transmit the display data.