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ecp5: Add support for mapping 36-bit wide PDP BRAMs

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2019-10-01 13:46:36 +01:00
parent d963e8c2c6
commit 7a1538cd36
6 changed files with 183 additions and 1 deletions
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42
techlibs/ecp5/brams_map.v
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@ -113,3 +113,45 @@ module \$__ECP5_DP16KD (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN);
wire TECHMAP_FAIL = 1'b1;
end endgenerate
endmodule
module \$__ECP5_PDPW16KD (CLK2, CLK3, A1ADDR, A1DATA, A1EN, B1ADDR, B1DATA, B1EN);
parameter CFG_ABITS = 9;
parameter CFG_DBITS = 36;
parameter CFG_ENABLE_A = 4;
parameter CLKPOL2 = 1;
parameter CLKPOL3 = 1;
parameter [18431:0] INIT = 18432'bx;
input CLK2;
input CLK3;
input [CFG_ABITS-1:0] A1ADDR;
input [CFG_DBITS-1:0] A1DATA;
input [CFG_ENABLE_A-1:0] A1EN;
input [CFG_ABITS-1:0] B1ADDR;
output [CFG_DBITS-1:0] B1DATA;
input B1EN;
localparam CLKWMUX = CLKPOL2 ? "CLKA" : "INV";
localparam CLKRMUX = CLKPOL3 ? "CLKB" : "INV";
localparam WRITEMODE_A = TRANSP2 ? "WRITETHROUGH" : "READBEFOREWRITE";
PDPW16KD #(
`include "bram_init_9_18_36.vh"
.DATA_WIDTH_W(36),
.DATA_WIDTH_R(36),
.CLKWMUX(CLKWMUX),
.CLKRMUX(CLKRMUX),
.GSR("AUTO")
) _TECHMAP_REPLACE_ (
`include "bram_conn_36.vh"
.CLKW(CLK2), .CLKR(CLK3),
.CEW(1'b1),
.CER(B1EN), .OCER(1'b1),
.RST(1'b0)
);
endmodule