URL https://opencores.org/ocsvn/openmsp430/openmsp430/trunk

Subversion Repositories openmsp430

[/] [openmsp430/] [trunk/] [fpga/] [xilinx_avnet_lx9microbard/] [rtl/] [verilog/] [openmsp430/] [omsp_mem_backbone.v] - Diff between revs 202 and 205

Rev 202	Rev 205
Line 321...	Line 321...

`wire fe_pmem_save = (~fe_pmem_en & fe_pmem_en_dly) & ~cpu_halt_st;`	`wire fe_pmem_save = (~fe_pmem_en & fe_pmem_en_dly) & ~cpu_halt_st;`
`wire fe_pmem_restore = ( fe_pmem_en & ~fe_pmem_en_dly) \| cpu_halt_st;`	`wire fe_pmem_restore = ( fe_pmem_en & ~fe_pmem_en_dly) \| cpu_halt_st;`

`ifdef CLOCK_GATING	`ifdef CLOCK_GATING
`wire mclk_bckup;`	`wire mclk_bckup_gated;`
`omsp_clock_gate clock_gate_bckup (.gclk(mclk_bckup),`	`omsp_clock_gate clock_gate_bckup (.gclk(mclk_bckup_gated),`
`.clk (mclk), .enable(fe_pmem_save), .scan_enable(scan_enable));`	`.clk (mclk), .enable(fe_pmem_save), .scan_enable(scan_enable));`
	`define MCLK_BCKUP mclk_bckup_gated
`else	`else
`wire UNUSED_scan_enable = scan_enable;`	`wire UNUSED_scan_enable = scan_enable;`
`wire mclk_bckup = mclk;`	`define MCLK_BCKUP mclk // use macro to solve delta cycle issues with some mixed VHDL/Verilog simulators
`endif	`endif

`reg [15:0] pmem_dout_bckup;`	`reg [15:0] pmem_dout_bckup;`
`always @(posedge mclk_bckup or posedge puc_rst)`	always @(posedge `MCLK_BCKUP or posedge puc_rst)
`if (puc_rst) pmem_dout_bckup <= 16'h0000;`	`if (puc_rst) pmem_dout_bckup <= 16'h0000;`
`ifdef CLOCK_GATING	`ifdef CLOCK_GATING
`else pmem_dout_bckup <= pmem_dout;`	`else pmem_dout_bckup <= pmem_dout;`
`else	`else
`else if (fe_pmem_save) pmem_dout_bckup <= pmem_dout;`	`else if (fe_pmem_save) pmem_dout_bckup <= pmem_dout;`