NeuroEtch
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ICsprout55 out_proj sixteen-row
First primitive gate on a new tensor manifest chain: out_proj instead of in_proj_qkv. Same sixteen-row mux pattern, deeper banks, honest 75 MHz placement-RC timing.
Key points
Tensor
out_proj L0
1024×2048 weight matrix; sixteen pinned rows.
Row width
2048 INT4
128 cycles × 16 lanes per dot product.
Cells
21,071 mapped
59,304 instances after tap/CTS/fill.
DRT
0 violations
500×500 µm die.
Timing (exp.)
75 MHz
Matches CF-3 closing frequency.
CF-6 shows the row-mux ROM + MAC primitive pattern generalizes to out_proj weights, not only in_proj_qkv. Row length doubles versus CF-3; cycle count scales accordingly.
Still sixteen rows of one projection tensor — not full out_proj (1024 rows) on chip.