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Optimize use of RAM primitive in icache

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The RAM primitive provides a way to specify the granularity of the write
mask (wmask) signal, which can be used to select an appropriate
implementation (e.g. a SRAM with only byte selects, or no subselects at
all).
This commit is contained in:
Philipp Wagner 2020-05-22 16:16:09 +01:00 • committed by Philipp Wagner
parent 7e1852024a
commit dd39ec0c91
1 changed files with 6 additions and 4 deletions
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10
rtl/ibex_icache.sv
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@ -301,8 +301,9 @@ module ibex_icache #(
for (genvar way = 0; way < NumWays; way++) begin : gen_rams
// Tag RAM instantiation
prim_ram_1p #(
.Width (TAG_SIZE_ECC),
.Depth (NUM_LINES)
.Width (TAG_SIZE_ECC),
.Depth (NUM_LINES),
.DataBitsPerMask (TAG_SIZE_ECC)
) tag_bank (
.clk_i (clk_i),
.req_i (tag_req_ic0 & tag_banks_ic0[way]),
@ -314,8 +315,9 @@ module ibex_icache #(
);
// Data RAM instantiation
prim_ram_1p #(
.Width (LINE_SIZE_ECC),
.Depth (NUM_LINES)
.Width (LINE_SIZE_ECC),
.Depth (NUM_LINES),
.DataBitsPerMask (LINE_SIZE_ECC)
) data_bank (
.clk_i (clk_i),
.req_i (data_req_ic0 & data_banks_ic0[way]),