SPRUJ79 November 2024 F29H850TU , F29H859TU-Q1
The global debug enable control gates debug access to all C29x CPU test access ports (TAPs). When C29DBGEN is inactive (set to 0), none of the CPU cores are accessible directly using JTAG; only communication with the device Security Access Port (SEC-AP) handler is permitted.
When present, the HSM can also control debug access to the C29x CPUs by writing to the C29DBGEN or ZONE_DBGEN registers in the SSU.