Add TI TMDS1204 HDMI layout as VENDOR/PHY only (2.80.0).

Sink/source ZPCB, skew, length, vias from SLLSF57A Tables 8-6/8-2. Generic hdmi-* TMDS Zdiff stays UNKNOWN. SLLA633 is SIGDET only.

tests/pcb/test_protocol_pdf_pack.py

@@ -175,6 +175,23 @@ def test_dvi_not_hdmi_numeric_from_dvi_10():
     fz = next(c for c in frl.constraints if c.parameter == "differential_impedance")
     assert fz.value_kind == "UNKNOWN"
     assert fz.value is None
+    sink = next(p for p in cat.physical_interfaces if p.id == "tmds1204-hdmi-sink")
+    assert sink.logical_protocol_id == "tmds1204"
+    sby = {c.parameter: c for c in sink.constraints}
+    _cite_ok(sby["differential_impedance"])
+    assert sby["differential_impedance"].value == 90.0
+    assert sby["differential_impedance"].source_type == "PHY"
+    assert sby["differential_impedance"].source_class == "VENDOR"
+    assert sby["differential_impedance"].mandatory == "RECOMMENDED"
+    assert sby["differential_impedance"].source.table == "Table 8-6"
+    assert sby["differential_impedance"].source.organization == "Texas Instruments"
+    assert "SLLSF57A" in sby["differential_impedance"].source.revision
+    assert sby["differential_impedance"].source_class != "NORMATIVE"
+    src = next(p for p in cat.physical_interfaces if p.id == "tmds1204-hdmi-source")
+    rby = {c.parameter: c for c in src.constraints}
+    assert rby["differential_impedance"].value == 75.0
+    assert rby["differential_impedance"].source.table == "Table 8-2"
+    assert rby["differential_impedance"].source_class == "VENDOR"
     g = DesignGraph(
         components={
             "J3": Component(