4-Channel Priority Multiplexer

Intermediate

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01General Operation

If i_req(3)='1', output i_d3. Else if i_req(2)='1', output i_d2. Etc. If no request, o_data="0000" and o_valid='0'.

02Interface

Signal	Direction	Width	Description
`i_req`	Input	4 bits	Request bits (3=highest priority)
`i_d0`	Input	4 bits	Channel 0 data (lowest priority)
`i_d1`	Input	4 bits	Channel 1 data
`i_d2`	Input	4 bits	Channel 2 data
`i_d3`	Input	4 bits	Channel 3 data (highest priority)
`o_data`	Output	4 bits	Selected channel data
`o_valid`	Output	1 bit	'1' if at least one channel active

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