69 lines
1.3 KiB
C++
69 lines
1.3 KiB
C++
/*
|
|
* TimingConfiguration.h
|
|
*
|
|
* Created on: Mar 6, 2014
|
|
* Author: jonny
|
|
*/
|
|
|
|
#ifndef TIMINGS_H_
|
|
#define TIMINGS_H_
|
|
|
|
#include <systemc.h>
|
|
#include "utils/Utils.h"
|
|
|
|
namespace core{
|
|
|
|
struct RefreshTiming
|
|
{
|
|
RefreshTiming(sc_time tRFC, sc_time tREFI) : tRFC(tRFC), tREFI(tREFI) {}
|
|
sc_time tRFC;
|
|
sc_time tREFI;
|
|
};
|
|
|
|
struct TimingConfiguration
|
|
{
|
|
TimingConfiguration(unsigned int numberOfBanks)
|
|
{
|
|
|
|
clk = sc_time(6, SC_NS); // 166MHz
|
|
|
|
for (unsigned int i = 0; i < numberOfBanks; ++i)
|
|
{
|
|
sc_time tRFC = 21*clk;
|
|
//sc_time tREFI = 100*clk;
|
|
sc_time tREFI = sc_time(15.6, SC_US); //TODO align
|
|
//tREFI = sc_time(301268, SC_NS);
|
|
refreshTimings.push_back(RefreshTiming(tRFC, tREFI));
|
|
}
|
|
|
|
|
|
tRP = 3*clk; //precharge-time (pre -> act same bank)
|
|
tRAS = 6*clk; //active-time (act -> pre same bank)
|
|
|
|
tRC = tRP + tRAS; //RAS-cycle-time (min time bw 2 succesive ACT to same bank)
|
|
tRRD = 2*clk; //(min time bw 2 succesive ACT to different banks)
|
|
tRCD = 3*clk; //act -> read/write
|
|
|
|
tRL = 3*clk; //read latency (read command start to data strobe)
|
|
|
|
tTAW = 48*clk; //two activate window
|
|
}
|
|
|
|
sc_time clk;
|
|
sc_time tRP;
|
|
sc_time tRAS;
|
|
sc_time tRC;
|
|
sc_time tRRD;
|
|
sc_time tRCD;
|
|
sc_time tTAW;
|
|
sc_time tRL;
|
|
|
|
std::vector<RefreshTiming> refreshTimings;
|
|
|
|
};
|
|
|
|
} /* namespace controller */
|
|
|
|
|
|
#endif /* TimingConfiguration_H_ */
|