| 摘要 |
<p>An algorithmic snoop unit (28) snoops interleaved transactions over a shared bus (42) as data is transmitted via transactions between clients (34, 36, 38) coupled to the shared bus, and executes various algorithms upon data snooped from the transactions. The unit includes one or more algorithmic entries (46, 48, 50) along with an algorithmic engine (44). Each algorithmic entry includes a client ID register that identifies the client associated with a transaction, a starting address register and an ending address that define the address range upon which an algorithm will be executed, a read or write flag that identifies whether the transactions is a read or write operation, an encryption key register for holding an encryption key, a decryption key register for holding a decryption key, an algorithm ID register for identifying an algorithm to be executed, a status/control register which holds various status and control, an accumulator for accumulating results from the execution of the algorithm, a temporary storage area, and one or more memory pointers that index a location in memory for results comprising a large amount of data. If a match is found, the algorithm identified by the algorithm ID register is executed upon the data carried by the transaction. <IMAGE></p> |
