diff options
Diffstat (limited to 'rtl/src/verilog/core_selector.v')
| -rw-r--r-- | rtl/src/verilog/core_selector.v | 44 |
1 files changed, 18 insertions, 26 deletions
diff --git a/rtl/src/verilog/core_selector.v b/rtl/src/verilog/core_selector.v index 629d3b6..8ce2003 100644 --- a/rtl/src/verilog/core_selector.v +++ b/rtl/src/verilog/core_selector.v @@ -38,31 +38,23 @@ module core_selector ( - sys_clk, sys_rst, - sys_eim_addr, sys_eim_wr, sys_eim_rd, - sys_eim_dout, sys_eim_din + input wire sys_clk, + input wire sys_rst, + + input wire [13: 0] sys_eim_addr, + input wire sys_eim_wr, + input wire sys_eim_rd, + output wire [31 : 0] read_data, + input wire [31 : 0] write_data ); // - // Ports - // - input wire sys_clk; - input wire sys_rst; - - input wire [13: 0] sys_eim_addr; - input wire sys_eim_wr; - input wire sys_eim_rd; - input wire [31: 0] sys_eim_dout; - output wire [31: 0] sys_eim_din; - - - // // Internal Registers // reg [31: 0] reg_x = {32{1'b0}}; reg [31: 0] reg_y = {32{1'b0}}; reg [15: 0] reg_ctl = {16{1'b0}}; - reg [31: 0] sys_eim_din_reg = {32{1'b0}}; + reg [31: 0] read_data_reg = {32{1'b0}}; // @@ -95,9 +87,9 @@ module core_selector end else if (eim_access_write) begin // case (sys_eim_addr[1:0]) - ADDER_OFFSET_REG_X: reg_x <= sys_eim_dout; - ADDER_OFFSET_REG_Y: reg_y <= sys_eim_dout; - ADDER_OFFSET_REG_SC: reg_ctl <= sys_eim_dout[15: 0]; + ADDER_OFFSET_REG_X: reg_x <= write_data; + ADDER_OFFSET_REG_Y: reg_y <= write_data; + ADDER_OFFSET_REG_SC: reg_ctl <= write_data[15 : 0]; endcase // end @@ -111,20 +103,20 @@ module core_selector always @(posedge sys_clk) // - if (sys_rst) sys_eim_din_reg <= {32{1'b0}}; + if (sys_rst) read_data_reg <= {32{1'b0}}; // else if (eim_access_read) begin // case (sys_eim_addr[1:0]) - ADDER_OFFSET_REG_X: sys_eim_din_reg <= reg_x; - ADDER_OFFSET_REG_Y: sys_eim_din_reg <= reg_y; - ADDER_OFFSET_REG_Z: sys_eim_din_reg <= reg_z; - ADDER_OFFSET_REG_SC: sys_eim_din_reg <= {reg_sts, reg_ctl}; + ADDER_OFFSET_REG_X: read_data_reg <= reg_x; + ADDER_OFFSET_REG_Y: read_data_reg <= reg_y; + ADDER_OFFSET_REG_Z: read_data_reg <= reg_z; + ADDER_OFFSET_REG_SC: read_data_reg <= {reg_sts, reg_ctl}; endcase // end - assign sys_eim_din = sys_eim_din_reg; + assign read_data = read_data_reg; // |