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refactor(cam): remove read noise from noise architecture (Phase 2)

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- Make cam_read_noise a pass-through module, removing all noise injection logic
- Switch write noise to use noise_mask_bernoulli instead of noise_mask_grouped
- Add state machine to cam_write_noise for mask generation timing
- Remove noise_mask_grouped.sv (no longer needed)
- Remove read noise parameters from cam_noisy and cam_top
- Update simulation and benchmark code to reflect read noise removal
- Sync documentation to reflect Phase 2 architecture
This commit is contained in:
SikongJueluo
2026-05-26 23:02:22 +08:00
parent e5d13917b2
commit 8b4d4c1b57
29 changed files with 277 additions and 863 deletions
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16
hw/rtl/cam_top.sv
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@@ -5,13 +5,7 @@ module cam_top #(
parameter bit WRITE_NOISE_EN = 1'b1,
parameter int WRITE_NOISE_RATE_NUM = 1,
parameter int WRITE_NOISE_RATE_DEN = 100,
parameter int WRITE_NOISE_BITS = 8,
parameter logic [63:0] WRITE_NOISE_SEED = 64'hB504_F32D_B504_F32D,
parameter bit READ_NOISE_EN = 1'b1,
parameter int READ_NOISE_RATE_NUM = 1,
parameter int READ_NOISE_RATE_DEN = 100,
parameter int READ_NOISE_BITS = 8,
parameter logic [63:0] READ_NOISE_SEED = 64'h6A09_E667_F3BC_C909
parameter logic [63:0] WRITE_NOISE_SEED = 64'hB504_F32D_B504_F32D
) (
input logic clk,
input logic rst_n,
@@ -77,13 +71,7 @@ module cam_top #(
.WRITE_NOISE_EN (WRITE_NOISE_EN),
.WRITE_NOISE_RATE_NUM (WRITE_NOISE_RATE_NUM),
.WRITE_NOISE_RATE_DEN (WRITE_NOISE_RATE_DEN),
.WRITE_NOISE_BITS (WRITE_NOISE_BITS),
.WRITE_NOISE_SEED (WRITE_NOISE_SEED),
.READ_NOISE_EN (READ_NOISE_EN),
.READ_NOISE_RATE_NUM (READ_NOISE_RATE_NUM),
.READ_NOISE_RATE_DEN (READ_NOISE_RATE_DEN),
.READ_NOISE_BITS (READ_NOISE_BITS),
.READ_NOISE_SEED (READ_NOISE_SEED)
.WRITE_NOISE_SEED (WRITE_NOISE_SEED)
) u_noisy (
.clk (clk),
.rst_n (rst_n),