Subversion Repositories ahb_slave

OUTFILE PREFIX_mem.v

INCLUDE def_ahb_slave.txt

ITER BX EXPR(DATA_BITS/8)

module PREFIX_mem (PORTS);

   parameter                    MEM_WORDS = EXPR((2^ADDR_BITS)/(DATA_BITS/8));

   parameter                    ADDR_LSB  = LOG2(EXPR(DATA_BITS/8));

   input                        clk;

   input                        reset;

   revport                      GROUP_STUB_MEM;

   reg [DATA_BITS-1:0]          Mem [MEM_WORDS-1:0];

   reg [DATA_BITS-1:0]          DOUT;

   wire [DATA_BITS-1:0]         BitSEL;

   wire [ADDR_BITS-1:ADDR_LSB]  ADDR_WR_word = ADDR_WR[ADDR_BITS-1:ADDR_LSB];

   wire [ADDR_BITS-1:ADDR_LSB]  ADDR_RD_word = ADDR_RD[ADDR_BITS-1:ADDR_LSB];

   assign                       BitSEL = {CONCAT({8{BSEL[BX]}} ,)};

   always @(posedge clk)

     if (WR)

       Mem[ADDR_WR_word] <= #FFD (Mem[ADDR_WR_word] & ~BitSEL) | (DIN & BitSEL);

   always @(posedge clk or posedge reset)

     if (reset)

       DOUT <= #FFD {DATA_BITS{1'b0}};

     else if (RD)

       DOUT <= #FFD Mem[ADDR_RD_word];

endmodule