OMAPL138 型号尾缀

请问OMAPL138型号尾缀中含有E（即Basic Secure Boot Enabled），和不含E尾缀的芯片有什么不同么？

noaming：

For security enabled devices,TI’s Basic Secure Boot allows users to protect proprietary intellectualproperty and prevents external entities from modifying user-developed algorithms. By starting from ahardware-based “root-of-trust”, the secure boot flow guarantees a known good starting point for codeexecution.