URL https://opencores.org/ocsvn/async_sdm_noc/async_sdm_noc/trunk

Subversion Repositories async_sdm_noc

[/] [async_sdm_noc/] [branches/] [init/] [sdm/] [src/] [subc_ctl.v] - Diff between revs 24 and 26

Rev 24	Rev 26
Line 50...	Line 50...
`wire acko; // the ack signal after the C2N gate`	`wire acko; // the ack signal after the C2N gate`
`wire fend; // the end of frame indicator`	`wire fend; // the end of frame indicator`
`wire acken; // active low ack enable`	`wire acken; // active low ack enable`

`ifdef ENABLE_LOOKAHEAD	`ifdef ENABLE_LOOKAHEAD
`c2n CD (.q(acko), .a0(ai2cb), .a1(ack)); // the C2N gate to avoid early withdrawal`	`c2n CD (.q(acko), .a(ai2cb), .b(ack)); // the C2N gate to avoid early withdrawal`
`else	`else
`assign acko = ai2cb;`	`assign acko = ai2cb;`
`endif	`endif

`c2p CEN (.a1(eof), .a0(acko), .q(fend));`	`c2p CEN (.b(eof), .a(acko), .q(fend));`
`c2 C (.a0(rt_ra), .a1(fend), .q(csc));`	`c2 C (.a0(rt_ra), .a1(fend), .q(csc));`
`nand U1 ( acken, rt_ra, ~csc);`	`nand U1 ( acken, rt_ra, ~csc);`
`nor U2 ( rt_rst, fend, ~csc);`	`nor U2 ( rt_rst, fend, ~csc);`
`nor AG ( nack, acko&(~eof), acken\|(rt_err&ack), ~rst_n);`	`nor AG ( nack, acko&(~eof), acken\|(rt_err&ack), ~rst_n);`