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Serial communication device with multi-mode operation of message receive buffers

  • US 20030061547A1
  • Filed: 09/20/2001
  • Published: 03/27/2003
  • Est. Priority Date: 09/20/2001
  • Status: Active Grant
First Claim
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1. 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 said buffer memory receiving data from a serial data stream;

    a filter register;

    a comparator comparing said filter register value with an identifier transmitted in said serial data stream generating an acceptance signal;

    a buffer pointer coupled with said comparator to receive said acceptance signal; and

    a multiple function address register unit having a first mode in which said unit receives an address from said buffer pointer for addressing said buffer memory and a second mode in which said acceptance signal is coupled with a count input of said address multiple function address register unit, whereby said address register value is altered upon generation of said acceptance signal.

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