Description: // Inputs------
//
// DMACSREQ_i-- The 16-bit signal which stores the single request of all the 16 devices
// DMACBREQ_i-- The 16-bit signal which stores the burst request of all the 16 devices
// hclk_i-- Clock signal
// hresetn_i-- Active low Reset signal
// arb_start_i-- This signal when high indicates tat the arbitration shd start.
//
// Outputs------
//
// arb_done_o-- This signal when high indicates that the request arbitration is done.
// dev_request_o-- This signal when high indicates that there is a device request.
// grant-- This signal holds the value of which device has been given a grant.
// burst_req_grant-- This signal when high indicates that a burst request has been given a grant.
// single_req_grant-- This signal when high indicates that a single request has been given a grant.
//
//
//
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request_arbiter.doc
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