Electrical computers and digital processing systems: multicomput – Network-to-computer interfacing
Reexamination Certificate
2005-06-28
2005-06-28
Vu, Viet D. (Department: 2154)
Electrical computers and digital processing systems: multicomput
Network-to-computer interfacing
C709S230000, C710S052000, C710S120000, C710S120000
Reexamination Certificate
active
06912594
ABSTRACT:
A CAN module comprising a buffer memory comprising a data and address input and a plurality of addressable buffers, a data receive register being coupled with the buffer memory receiving data from a serial data stream, a filter register, a comparator comparing the filter register value with an identifier transmitted in the serial data stream generating an acceptance signal, a buffer pointer coupled with the comparator to receive said acceptance signal, and a multiple function address register unit comprising a first mode in which the unit receives an address from the buffer pointer for addressing the buffer memory and a second mode in which the acceptance signal is coupled with an incrementer within the multiple function address register unit wherein the incrementer increments the address register upon generation of the acceptance signal. The arrangement can be switched between two modes. The module operates in a first mode and dynamically assigns any filter register to any buffer within the buffer memory. The second mode operates as a FIFO memory.
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Baker & Botts L.L.P.
Microchip Technology Incorporated
Vu Viet D.
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