Hi there
I am using a Micron verilog behavioaral mdoel for SDRAM MT48LC16M16A2
which is rated for CL=2 and I want to adapt the timings to verify a
Mobile RAM which provides timings (tCK3, tAC3 etc.) for CL=3. How can I
do it safely?
Thanks in advance to who'll reply
task set_<my mem>_timing;
begin
// Special timing for -75, CAS Latency = 3, tAC = 7.4ns!
tAC = 7.4;
tCK2 = 7.5; // tCK for CL=2
tHZ = 5.4;
tOH = 3.0;
tOH2 = 1.8; // Just enough...
tMRD = 2.0; // 2 Clk Cycles
tRAS = 45.0;
tRC = 65.0;
tRCD = 20.0;
tRFC = 66.0;
tRP = 20.0;
tRRD = 15.0;
tWRa = 7.0; // A2 Version - Auto precharge mode (1 Clk + 7
ns)
tWRp = 14.0; // A2 Version - Manual precharge mode (14 ns)
end
endtask