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12C slave device with programmable write-transaction cycles

  • US 7,606,956 B2
  • Filed: 05/01/2006
  • Issued: 10/20/2009
  • Est. Priority Date: 04/29/2005
  • Status: Active Grant
First Claim
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1. In a communications system using an Inter-Integrated Circuit (I2C) serial data transfer bus that has a serial data line and a clock line used to implement a communications protocol, a slave device, comprising:

  • input circuitry configured to receive serial data using the serial data transfer bus and provide data words assembled from the serial data;

    a programmable register configured to be programmed, using the communications protocol, to select one or more slave device configurations; and

    at least two banks of output drivers, configured to receive assembled data words provided by the input circuitry, wherein each bank of the at least two banks of output drivers updates its output drivers either sequentially, or in coordination with other of the at least two banks of output drivers, based on the slave device configuration selected by the programmable register.

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