A RADIO HAVING AN OPTION BOARD INTERFACE AND AN OPTION BOARD FOR USE THEREWITH

摘要

A radio transceiver system (100) includes an option board interface (117) withan analog interface (119) and a digital interface (125). Option boardinterface (117) is used for conveying information between an optional memoryboard (133) and a digital processing unit (105). Option board interface (117)also controls analog audio functions through analog interface (119). Optionboard interface (117) enhances functional operation of the radio transceiversystem (100) by allowing options to be selected which are not provided asstandard radio equipment.