| 摘要 |
An electronic module for a digital television receiver comprises a multimedia CPU ( 211 ), a non-volatile memory block ( 212 ) connected with the multimedia CPU ( 211 ) via a memory interface ( 220 ) and storing a booter application for initializing the start-up of the digital television receiver, and a buffer ( 213 ) connected to the memory interface ( 220 ), configurable to enable or block access to the memory interface ( 220 ) for components ( 206, 209 ) external to the module. The invention provides a solution for securing the set-top box elements, including CA system elements and proprietary set-top box software, to prevent unauthorized access to them, their monitoring or replacement.
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