SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
The DPACC instruction connects the associated DPACC Data Register chain between TDI and TDO. This instruction provides read and write access to the DPACC Register of the Arm DAP. Shifting the proper data into this register and reading the data output from this register allows read and write access to the Arm debug and status registers. See Section 3.5.2.5 for more information.