The enhanced filter coprocessor (EFCOP) is a general-purpose, fully programmable filter that operates concurrently with the DSP core, with minimal CPU intervention. The EFCOP was introduced into the DSP56300 family of DSPs, specifically into the DSP56307 and the DSP56311. Now, an updated and enhanced EFCOP is available on some StarCore™-based DSPs, such as the MSC8101 processor. This document describes the programming differences between the DSP56300 EFCOP and the MSC8101 EFCOP. These differences include the data resolution, the initialization, input/output, request sources, memory structure, and control registers. For details on EFCOP architecture and functionality, consult the following manuals and application notes: •Chapter 10, Enhanced Filter Coprocessor, DSP56307 User’s Manual (DSP56307UM) •Chapter 10, Enhanced Filter Coprocessor, DSP56311 User’s Manual (DSP56311UM) •Chapter 10, Enhanced Filter Coprocessor, DSP56L307 User’s Manual (DSP56L307UM/D) •Programming the DSP56307 Enhanced Filter Coprocessor (EFCOP) (APR39/D) •Chapter 18, Enhanced Filter Coprocessor, MSC8101 Reference Manual (MSC8101RM/D) •Chapter 9, Programming the EFCOP, MSC8101 User’s Guide (MSC8101UG/D)