| Line 16... |
Line 16... |
Author(s):
|
Author(s):
|
- Dinesh Annayya, dinesha@opencores.org
|
- Dinesh Annayya, dinesha@opencores.org
|
Version : 0.0 - 8th Jan 2012 - Initial structure
|
Version : 0.0 - 8th Jan 2012 - Initial structure
|
0.2 - 2nd Feb 2012
|
0.2 - 2nd Feb 2012
|
Improved the command pipe structure to accept up-to 4 command of different bank.
|
Improved the command pipe structure to accept up-to 4 command of different bank.
|
|
0.3 - 6th Feb 2012
|
|
Bug fix on read valid generation
|
|
|
|
|
|
|
Copyright (C) 2000 Authors and OPENCORES.ORG
|
Copyright (C) 2000 Authors and OPENCORES.ORG
|
|
|
| Line 139... |
Line 141... |
end
|
end
|
else if(sdr_width == 2'b01) // 16 Bit SDR Mode
|
else if(sdr_width == 2'b01) // 16 Bit SDR Mode
|
begin
|
begin
|
// Changed the address and length to match the 16 bit SDR Mode
|
// Changed the address and length to match the 16 bit SDR Mode
|
app_wr_next = (x2a_wrnext & wr_xfr_count[0]);
|
app_wr_next = (x2a_wrnext & wr_xfr_count[0]);
|
app_rd_valid = (rd_xfr_count & rd_xfr_count[0]);
|
app_rd_valid = (x2a_rdok & rd_xfr_count[0]);
|
if(wr_xfr_count[0] == 1'b1)
|
if(wr_xfr_count[0] == 1'b1)
|
begin
|
begin
|
a2x_wren_n = app_wr_en_n[3:2];
|
a2x_wren_n = app_wr_en_n[3:2];
|
a2x_wrdt = app_wr_data[31:16];
|
a2x_wrdt = app_wr_data[31:16];
|
end
|
end
|
| Line 156... |
Line 158... |
app_rd_data = {x2a_rddt,saved_rd_data[15:0]};
|
app_rd_data = {x2a_rddt,saved_rd_data[15:0]};
|
end else // 8 Bit SDR Mode
|
end else // 8 Bit SDR Mode
|
begin
|
begin
|
// Changed the address and length to match the 16 bit SDR Mode
|
// Changed the address and length to match the 16 bit SDR Mode
|
app_wr_next = (x2a_wrnext & (wr_xfr_count[1:0]== 2'b11));
|
app_wr_next = (x2a_wrnext & (wr_xfr_count[1:0]== 2'b11));
|
app_rd_valid = (rd_xfr_count & (rd_xfr_count[1:0]== 2'b11));
|
app_rd_valid = (x2a_rdok & (rd_xfr_count[1:0]== 2'b11));
|
if(wr_xfr_count[1:0] == 2'b11)
|
if(wr_xfr_count[1:0] == 2'b11)
|
begin
|
begin
|
a2x_wren_n = app_wr_en_n[3];
|
a2x_wren_n = app_wr_en_n[3];
|
a2x_wrdt = app_wr_data[31:24];
|
a2x_wrdt = app_wr_data[31:24];
|
end
|
end
|
