Methods and apparatus for dynamically reconfigurable parallel data error checking

Abstract

In a first aspect, a first method is provided. The first method includes the steps of (1) transmitting data on a bus, wherein data is presented on the bus using varying widths; (2) configuring a cyclic redundancy check (CRC) to be performed on the data based on the manner in which the data is presented on the bus; and (3) performing the CRC on the data. Numerous other aspects are provided.

1 . A method comprising: 
 transmitting data on a bus, wherein data is presented on the bus using varying widths;    configuring a cyclic redundancy check (CRC) to be performed on the data based on the manner in which the data is presented on the bus; and    performing the CRC on the data.    
   
   
       2 . The method of  claim 1  wherein configuring a cyclic redundancy check (CRC) to be performed on the data based on the manner in which the data is presented on the bus includes configuring the cyclic redundancy check (CRC) to be performed on the data in parallel or cascade.  
   
   
       3 . An apparatus comprising: 
 a bus for transmitting data;    CRC logic, coupled to the bus, for performing CRC on data received from the bus; and    control logic, coupled to the bus and CRC logic, for providing control signals to the CRC logic;    wherein the apparatus is adapted to: 
 transmit data on the bus, wherein data is presented on the bus using varying widths;  
   configure a cyclic redundancy check (CRC) to be performed on the data based on the manner in which data is presented on the bus; and    perform the CRC on the data.    
   
   
       4 . The apparatus of  claim 3  wherein the apparatus is further adapted to configure the cyclic redundancy check (CRC) to be performed on the data in parallel or cascade.