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Removing write decode from wait pushback

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This commit is contained in:
Andreas Olofsson 2015-11-15 01:35:04 -05:00
parent df0deabd0f
commit 431abcda57
1 changed files with 10 additions and 5 deletions
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15
elink/hdl/etx_arbiter.v
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@ -126,15 +126,18 @@ module etx_arbiter (/*AUTOARG*/
//###################################################################### //######################################################################
//Write waits on pin wr wait or cfg_wait //Write waits on pin wr wait or cfg_wait
assign txwr_wait = etx_wr_wait | assign txwr_wait = etx_wr_wait |
etx_rd_wait |
etx_cfg_wait; etx_cfg_wait;
//Host read request (self throttling, one read at a time) //Host read request (self throttling, one read at a time)
assign txrd_wait = etx_rd_wait | assign txrd_wait = etx_rd_wait |
etx_wr_wait |
etx_cfg_wait | etx_cfg_wait |
txrd_arb_wait; txrd_arb_wait;
//Read response //Read response
assign txrr_wait = etx_wr_wait | assign txrr_wait = etx_wr_wait |
etx_rd_wait |
etx_cfg_wait | etx_cfg_wait |
txrr_arb_wait; txrr_arb_wait;
@ -162,15 +165,17 @@ module etx_arbiter (/*AUTOARG*/
etx_access <= 1'b0; etx_access <= 1'b0;
etx_rr <= 1'b0; etx_rr <= 1'b0;
end end
else if (access_in & (write_in & ~etx_wr_wait) | (~write_in & ~etx_rd_wait)) else if (~(etx_wr_wait | etx_rd_wait))
begin begin
etx_access <= access_in; etx_access <= access_in;
etx_rr <= txrr_grant; etx_rr <= txrr_grant;
end end
//packet //packet
always @ (posedge clk) always @ (posedge clk)
if (access_in & (write_in & ~etx_wr_wait) | (~write_in & ~etx_rd_wait)) if (access_in & ~(etx_wr_wait | etx_rd_wait))
etx_packet[PW-1:0] <= etx_mux[PW-1:0]; etx_packet[PW-1:0] <= etx_mux[PW-1:0];
endmodule // etx_arbiter endmodule // etx_arbiter