ZHCSH09 October 2017 MSP432E401Y
PRODUCTION DATA.
The Joint Test Action Group (JTAG) port is an IEEE standard that defines a Test Access Port (TAP) and Boundary Scan Architecture for digital integrated circuits and provides a standardized serial interface for controlling the associated test logic. The TAP, Instruction Register (IR), and Data Register (DR) can be used to test the interconnections of assembled printed circuit boards and obtain manufacturing information on the components. The JTAG port also provides a means of accessing and controlling design-for-test features such as I/O pin observation and control, scan testing, and debugging. TI replaces the Arm SW-DP and JTAG-DP with the Arm Serial Wire JTAG Debug Port (SWJ-DP) interface. The SWJ-DP interface combines the SWD and JTAG debug ports into one module. This module provides the standard JTAG debug and test functionality plus real-time access to system memory without halting the core or requiring any target resident code. The SWJ-DP interface has the following features: