SIG-13 — FE_MPIO fault-protected analog switches

All FE_MPIO signals shall be routed through fault-protected analog switches that automatically isolate the internal circuitry during overvoltage events

Automatic isolation on overvoltage; protects against miswiring, hot-plugging, and power-sequencing faults; OV tolerance 15 V (per SIG-02 acceptance). Per Sparrow Hardware Datasheet v3 §6.9 note (sourceRef: 01_ProductSpec/Sparrow Hardware Datasheet-v3-20260504_150735.pdf)