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Pipelining on AHB Protocol

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Mina Magdy

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Hi
i have a little confusion on the AHB Protocol and i need help.
1) why we use a delayed version of HMASTER[3:0] on the HWDATA MUX (the multiplexer that used to connect the data bus of master to the slave)
2) i know that we keep the pipelining on AHB Protocol by delay the data(HWDATA) one cycle before the address(HADDR) (as i understand) so how we will keep that if we use a delayed version of HMASTER (i mean on the first cycle HWDATA will be delayed twice)

thanks in advance :)
 

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