A microprocessor has an internal cache memory which can cache a mix of normal system memory and system management mode memory. An address translator passes an address unchanged if a system management mode input signal indicates the normal mode. The address translator translates the address to an address...http://www.google.de/patents/US5954812?utm_source=gb-gplus-sharePatent US5954812 - Apparatus for caching system management memory in a computer having a system management mode employing address translation