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

Subversion Repositories amber

[/] [amber/] [trunk/] [hw/] [vlog/] [amber25/] [a25_wishbone_buf.v] - Diff between revs 35 and 36

Rev 35	Rev 36
Line 87...	Line 87...

`// ----------------------------------------------------`	`// ----------------------------------------------------`
`// Access Buffer`	`// Access Buffer`
`// ----------------------------------------------------`	`// ----------------------------------------------------`
`always @(posedge i_clk)`	`always @(posedge i_clk)`
`if (!wbuf_used_r && i_req)`	`if (i_req && !wbuf_used_r)`
`begin`	`begin`
`wbuf_used_r <= !i_accepted;`	`wbuf_used_r <= !i_accepted;`
`wbuf_wdata_r <= i_wdata;`	`wbuf_wdata_r <= i_wdata;`
`wbuf_addr_r <= i_addr;`	`wbuf_addr_r <= i_addr;`
`wbuf_be_r <= i_write ? i_be : 16'hffff;`	`wbuf_be_r <= i_write ? i_be : 16'hffff;`
`wbuf_write_r <= i_write;`	`wbuf_write_r <= i_write;`
`end`	`end`
	`else if ( i_req && wbuf_used_r && o_valid && i_accepted)`
	`begin`
	`wbuf_used_r <= 1'd1;`
	`wbuf_wdata_r <= i_wdata;`
	`wbuf_addr_r <= i_addr;`
	`wbuf_be_r <= i_write ? i_be : 16'hffff;`
	`wbuf_write_r <= i_write;`
	`end`
`else if (o_valid && i_accepted && wbuf_write_r)`	`else if (o_valid && i_accepted && wbuf_write_r)`
`wbuf_used_r <= 1'd0;`	`wbuf_used_r <= 1'd0;`
`else if (i_rdata_valid && !wbuf_write_r)`	`else if (i_rdata_valid && !wbuf_write_r)`
`wbuf_used_r <= 1'd0;`	`wbuf_used_r <= 1'd0;`