SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
SYS_ERR consolidates several sources of interrupts. These sources set the respective bit in the SYS_ERR_INT_FLG. Any set bit in the SYS_ERR_INT_FLG registers also sets the GINT (Global Interrupt) bit. The GINT bit has to be cleared before anymore SYS_ERR interrupt is generated. If the GINT bit is cleared with the source flags still set, another SYS_ERR interrupt is fired; therefore, clear the source flags before clearing the GINT bit.
Figure 3-3 shows the sources for SYS_ERR interrupts.