To-host channel of ``window<{tag, list<si32>}>``.
Exercises the typed read path for windowed-list-with-header on a raw
channel (no `TypedFunction` orchestrator on top). The driver writes any
value to offset ``0x10`` of the ``trigger`` MMIO region to arm one burst;
the HW then emits exactly one burst (``tag = 0xCAFE`` and the four-element
list ``[10, 20, 30, 40]``) and goes idle. Free-running emission would
unboundedly fill the host runtime's polling queue, so each burst is gated
on an explicit trigger.
Definition at line 667 of file test_codegen.py.