i2cregister.tdf

来自「基于fpga的屏幕测试程序」· TDF 代码 · 共 26 行

SUBDESIGN I2CRegister
   (
   clk: INPUT;
   i2cadd[7..0]: INPUT;
   regAdd[7..0]: INPUT;
   i2cDat[7..0]: BIDIR;
   i2cRd: INPUT;
   i2cWr: INPUT;
   dataOut[7..0]: OUTPUT;
   )

VARIABLE
   reg[7..0]: DFFE;
   TRIreg[7..0]: TRI;

BEGIN
reg[].clk=clk;
reg[].ena=i2cAdd[]==regAdd[] & i2cWr;
reg[].d=i2cDat[];
dataOut[]=reg[].q;
TRIreg[].oe=i2cAdd[]==regAdd[] & i2cRd;
TRIreg[].in=reg[].q;
i2cDat[]=TRIreg[].out;
END;