# Ensure power detour matches MLS ## Problem environment When the SAMR34 chip enters power saving sleep or backup modes, most circuits stop consuming power. The reference circuits that MLS may use assume pins on which TCXO and RF switch consume power unecessarily. ## Steps to reproduce 1. Open both sendcomm and reference circuits 1. Observe the schematic design files 1. Compare and refer to MLS configuration ## Expected result The Microchip LoRaWAN Stack (MLS) configuration matches the sendcomm schematic. ## Actual result Possibly, the Microchip LoRaWAN Stack (MLS) configuration matches the reference (EVK) schematic. ## Notice MLS based applications have experienced clock problems, which may relate to powering TXCO with the wrong pin. ## Severity level This is **medium priority** because no MLS based application can work correctly without reviewing this problem.