| Line 95... |
Line 95... |
//external pin
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//external pin
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output [31:0] PRDATA,
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output [31:0] PRDATA,
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//internal pin
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//internal pin
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output reg [13:0] INTERNAL_I2C_REGISTER_CONFIG,
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output reg [13:0] INTERNAL_I2C_REGISTER_CONFIG,
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output reg [13:0] INTERNAL_I2C_REGISTER_TIMEOUT,
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output [31:0] WRITE_DATA_ON_TX,
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output [31:0] WRITE_DATA_ON_TX,
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output WR_ENA,
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output WR_ENA,
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output RD_ENA,
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output RD_ENA,
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//outside port
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//outside port
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| Line 117... |
Line 118... |
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//ENABLE READ ON RX FIFO
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//ENABLE READ ON RX FIFO
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assign RD_ENA = (PWRITE == 1'b0 & PENABLE == 1'b1 & PADDR == 32'd4 & PSELx == 1'b1)? 1'b1:1'b0;
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assign RD_ENA = (PWRITE == 1'b0 & PENABLE == 1'b1 & PADDR == 32'd4 & PSELx == 1'b1)? 1'b1:1'b0;
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//WRITE ON I2C MODULE
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//WRITE ON I2C MODULE
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assign PREADY = ((WR_ENA == 1'b1 | RD_ENA == 1'b1 | PADDR == 32'd8) & (PENABLE == 1'b1 & PSELx == 1'b1))? 1'b1:1'b0;
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assign PREADY = ((WR_ENA == 1'b1 | RD_ENA == 1'b1 | PADDR == 32'd8 | PADDR == 32'd12) & (PENABLE == 1'b1 & PSELx == 1'b1))? 1'b1:1'b0;
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//INPUT TO WRITE ON TX FIFO
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//INPUT TO WRITE ON TX FIFO
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assign WRITE_DATA_ON_TX = (PADDR == 32'd0)? PWDATA:PWDATA;
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assign WRITE_DATA_ON_TX = (PADDR == 32'd0)? PWDATA:PWDATA;
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//OUTPUT DATA FROM RX TO PRDATA
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//OUTPUT DATA FROM RX TO PRDATA
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| Line 141... |
Line 142... |
begin
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begin
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if(!PRESETn)
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if(!PRESETn)
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begin
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begin
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INTERNAL_I2C_REGISTER_CONFIG <= 14'd0;
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INTERNAL_I2C_REGISTER_CONFIG <= 14'd0;
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INTERNAL_I2C_REGISTER_TIMEOUT <= 14'd0;
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end
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end
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else
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else
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begin
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begin
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// Set configuration to i2c
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// Set configuration to i2c
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if(PADDR == 32'd8 && PSELx == 1'b1 && PWRITE == 1'b1 && PREADY == 1'b1)
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if(PADDR == 32'd8 && PSELx == 1'b1 && PWRITE == 1'b1 && PREADY == 1'b1)
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begin
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begin
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INTERNAL_I2C_REGISTER_CONFIG <= PWDATA[13:0];
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INTERNAL_I2C_REGISTER_CONFIG <= PWDATA[13:0];
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end
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end
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else if(PADDR == 32'd12 && PSELx == 1'b1 && PWRITE == 1'b1 && PREADY == 1'b1)
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begin
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INTERNAL_I2C_REGISTER_TIMEOUT <= PWDATA[13:0];
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end
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else
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else
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begin
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begin
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INTERNAL_I2C_REGISTER_CONFIG <= INTERNAL_I2C_REGISTER_CONFIG;
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INTERNAL_I2C_REGISTER_CONFIG <= INTERNAL_I2C_REGISTER_CONFIG;
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end
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end
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