URL
https://opencores.org/ocsvn/eco32/eco32/trunk
Subversion Repositories eco32
Compare Revisions
- This comparison shows the changes necessary to convert path
/eco32/trunk/fpga
- from Rev 117 to Rev 118
- ↔ Reverse comparison
Rev 117 → Rev 118
/src/rom/rom.v
1,3 → 1,8
// |
// rom.v -- parallel flash ROM interface |
// |
|
|
module rom(clk, reset, |
en, wr, size, addr, |
data_out, wt, |
11,7 → 16,7
input [20:0] addr; |
output reg [31:0] data_out; |
output reg wt; |
// flash interface signals |
// flash ROM interface signals |
output ce_n; |
output oe_n; |
output we_n; |
31,9 → 36,9
assign rst_n = 1; |
assign byte_n = 1; |
|
// the flash ram is organized in 16-bit halfwords |
// the flash ROM is organized in 16-bit halfwords |
// address line a0 is controlled by the state machine |
// this is necessary for word accesses |
// (this is necessary for word accesses) |
assign a[19:1] = addr[20:2]; |
assign a[0] = a0; |
|
99,7 → 104,7
wt <= 1; |
state <= 0; |
end else begin |
// wait for flash access time to pass |
// wait for flash ROM access time to pass |
state <= state + 1; |
end |
end |