packages/chip/docs/pd/high-fanout-routing-pressure-2026-05-18.md
pd/openlane/runs/RUN_2026-05-18_05-41-42pd/openlane/runs/RUN_2026-05-18_05-41-42/final/nl/e1_chip_top.nl.vpd/openlane/runs/RUN_2026-05-18_05-41-42/06-yosys-synthesis/e1_chip_top.nl.v.json100 load pins| Net | Router pins | Parsed pins | Loads | Drivers | Dominant ports | Classification | Likely RTL / action |
|---|---|---|---|---|---|---|---|
| net489 | 106 | 106 | 105 | 1 | RESET_B:53, DIODE:50, A:2, X:1 | reset_distribution | Large routed reset branch. Likely driven by rst_n_sync through OpenROAD-inserted max-cap buffers. |
| Net | Load pins | Drivers | Source | Classification | Sample sinks |
|---|---|---|---|---|---|
rst_n_sync | 4232 | 1 | /work/rtl/top/e1_chip_top.sv:28.11-28.21 | reset_distribution | `$abc$197552$auto$blifparse.cc:396:parse_blif$222428.S |
| $abc$197552$auto$blifparse.cc:396:parse_blif$222431.S | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$222434.S | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$222437.S | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$222440.S | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$222443.S` | |||||
CLK_IN | 4223 | 0 | /work/rtl/top/e1_chip_top.sv:4.24-4.30 | clock_distribution | `$auto$ff.cc:266:slice$26675.CLK |
| $auto$ff.cc:266:slice$26676.CLK | |||||
| $auto$ff.cc:266:slice$26720.CLK | |||||
| $auto$ff.cc:266:slice$26721.CLK | |||||
| $auto$ff.cc:266:slice$26722.CLK | |||||
| $auto$ff.cc:266:slice$26723.CLK` | |||||
$abc$197552$new_n11271 | 162 | 1 | generated/no source attribute | synthesis_generated_logic | `$abc$197552$auto$blifparse.cc:396:parse_blif$200370.C |
| $abc$197552$auto$blifparse.cc:396:parse_blif$205421.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205481.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205512.B1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205520.B | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205537.A2` | |||||
$abc$197552$new_n11007 | 142 | 1 | generated/no source attribute | synthesis_generated_logic | `$abc$197552$auto$blifparse.cc:396:parse_blif$200101.B |
| $abc$197552$auto$blifparse.cc:396:parse_blif$200149.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$200355.A | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$203595.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$203596.A | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$203604.B2` | |||||
$abc$197552$new_n16330 | 137 | 1 | generated/no source attribute | synthesis_generated_logic | `$abc$197552$auto$blifparse.cc:396:parse_blif$205424.B1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$205482.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205510.B1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205544.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$206884.B1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$206893.B1` | |||||
$abc$197552$new_n11274 | 135 | 1 | generated/no source attribute | synthesis_generated_logic | `$abc$197552$auto$blifparse.cc:396:parse_blif$200370.D |
| $abc$197552$auto$blifparse.cc:396:parse_blif$205421.B1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205488.B1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205510.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205516.B | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205519.B` | |||||
$abc$197552$new_n10708 | 131 | 1 | generated/no source attribute | synthesis_generated_logic | `$abc$197552$auto$blifparse.cc:396:parse_blif$200371.A |
| $abc$197552$auto$blifparse.cc:396:parse_blif$205426.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205469.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205509.B1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205532.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$206883.B1` | |||||
$abc$197552$new_n10556 | 129 | 1 | generated/no source attribute | synthesis_generated_logic | `$abc$197552$auto$blifparse.cc:396:parse_blif$205491.A2 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$205509.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$205526.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$206883.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$206895.A2 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$206902.A2` | |||||
$abc$197552$new_n14998 | 114 | 1 | generated/no source attribute | synthesis_generated_logic | `$abc$197552$auto$blifparse.cc:396:parse_blif$204104.C1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$204165.A | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$204190.A | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$204194.A | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$204200.A | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$204203.A` | |||||
$abc$197552$new_n15016 | 107 | 1 | generated/no source attribute | synthesis_generated_logic | `$abc$197552$auto$blifparse.cc:396:parse_blif$204129.B |
| $abc$197552$auto$blifparse.cc:396:parse_blif$204131.B | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$204176.B1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$204178.S | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$204181.A | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$204185.A` | |||||
mmio_wdata[2] | 105 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$200590.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202070.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202174.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202277.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202380.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202482.A1` | |||||
mmio_wdata[3] | 104 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$200713.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202073.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202177.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202280.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202383.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202485.A1` | |||||
$abc$197552$new_n11060 | 103 | 1 | generated/no source attribute | synthesis_generated_logic | `$abc$197552$auto$blifparse.cc:396:parse_blif$200153.B |
| $abc$197552$auto$blifparse.cc:396:parse_blif$204071.B1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$221674.S | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$221675.S | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$221676.S | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$221677.S` | |||||
mmio_wdata[8] | 103 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201296.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202088.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202192.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202295.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202398.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202500.A1` | |||||
mmio_wdata[9] | 103 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201342.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202091.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202195.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202298.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202401.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202503.A1` | |||||
mmio_wdata[17] | 103 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201635.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202115.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202219.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202322.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202425.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202527.A1` | |||||
mmio_wdata[16] | 102 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$197565.A |
| $abc$197552$auto$blifparse.cc:396:parse_blif$201604.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202112.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202216.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202319.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202422.A1` | |||||
mmio_wdata[4] | 102 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$200836.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202076.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202180.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202283.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202386.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202488.A1` | |||||
mmio_wdata[5] | 102 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$200971.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202079.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202183.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202286.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202389.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202491.A1` | |||||
mmio_wdata[18] | 102 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201663.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202118.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202222.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202325.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202428.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202530.A1` | |||||
mmio_wdata[6] | 101 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201112.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202082.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202186.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202289.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202392.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202494.A1` | |||||
mmio_wdata[7] | 101 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201250.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202085.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202189.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202292.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202395.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202497.A1` | |||||
mmio_wdata[10] | 101 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201385.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202094.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202198.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202301.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202404.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202506.A1` | |||||
mmio_wdata[11] | 101 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201427.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202097.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202201.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202304.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202407.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202509.A1` | |||||
mmio_wdata[12] | 101 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201469.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202100.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202204.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202307.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202410.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202512.A1` | |||||
mmio_wdata[13] | 101 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201503.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202103.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202207.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202310.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202413.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202515.A1` | |||||
mmio_wdata[19] | 101 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201689.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202121.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202225.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202328.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202431.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202533.A1` | |||||
mmio_wdata[20] | 101 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201723.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202124.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202228.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202331.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202434.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202536.A1` | |||||
mmio_wdata[21] | 101 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201752.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202127.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202231.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202334.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202437.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202539.A1` | |||||
mmio_wdata[14] | 100 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201541.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202106.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202210.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202313.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202416.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202518.A1` | |||||
mmio_wdata[15] | 100 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201571.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202109.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202213.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202316.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202419.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202521.A1` | |||||
mmio_wdata[26] | 100 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201909.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202142.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202246.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202349.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202452.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202554.A1` | |||||
mmio_wdata[27] | 100 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201938.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202145.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202249.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202352.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202455.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202557.A1` | |||||
mmio_wdata[28] | 100 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$201972.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202148.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202252.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202355.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202458.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202560.A1` | |||||
mmio_wdata[29] | 100 | 1 | /work/rtl/top/e1_chip_top.sv:32.18-32.28 | mmio_write_data_fanout | `$abc$197552$auto$blifparse.cc:396:parse_blif$202006.A1 |
| $abc$197552$auto$blifparse.cc:396:parse_blif$202151.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202255.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202358.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202461.A1 | |||||
| $abc$197552$auto$blifparse.cc:396:parse_blif$202563.A1` |
[DRT-0120] reset net remains.rtl/npu/e1_npu.sv, and split wide mux/decode cones if they remain above threshold after reset fixes.