SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
During development, it is sometimes necessary to reset the CPU and the peripherals without disconnecting the debugger or disrupting the system-level configuration. To facilitate this, each CPU has a subsystem reset, which can be triggered by a debugger using Code Composer Studio IDE. CPU2 subsystem reset (CPU2.SYSRS) resets only CPU2, the peripherals, and the clock gating and LPM configuration. The CPU2 subsystem does not hold the CPU2 in reset. CPU1 subsystem reset (CPU1.SYSRS) resets CPU1, the peripherals, many system control registers (including the clock gating and LPM configuration and the peripheral CPU ownership), and all I/O pin configurations. The CPU1 subsystem also produces a CPU2.SYSRS (CCS Gel file can have code to release CPU2 out of reset on CPU1 debug reset).
Neither SYSRS resets the ICEPick debug module, the device capability registers, the clock source and PLL configurations, the missing clock detection state, the PIE vector fetch error handler address, the NMI flags, the analog trims, or anything reset only by a POR (see Section 3.3.4).