20.1.3 MTAP Switch ETAP (MTAP_SW_ETAP) Instruction

MTAP_SW_ETAP effectively switches the TAP instruction set to the EJTAG TAP instruction set. It does this by holding the EJTAG TAP controller in the Run Test/Idle state until a MTAP_SW_ETAP instruction is decoded by the MCHP TAP controller.

Each of these commands should be followed with a SetMode (6’b011111) to force the Chip TAP controller to the Run Test/Idle state.