| 1 |
tRCD |
tRCD_val[ONE] + e_bar[eBAL] - pMEH[8] |
tRCD_val[ONE] — this is drochr01 (For example, the tRCD_val array contains tRCD values for frequencies from 1600 to 3200 MHz with 266 MHz step.) |
Increasing pmeh8 will allow you to take the first timing higher, or stabilize the upper value. Decreasing pMeh 4 - allows you to take it higher/stabilizes the timing |
| 2 |
tRP |
tRP_val[ONE] + e_bar[eBAL] - pMEH[9] |
tRP_val[ONE] — this is drochr02 |
Increasing pmeh9 will allow you to take the first timing higher, or stabilize the upper value. Decreasing pMeh 4 - allows you to take it higher/stabilizes the timing. |
| 3 |
tRAS |
tRAS_val[ONE] + e_bar[eBAL]*2 - pMEH[10] |
tRAS_val[ONE] — this is drochr03 |
Increasing pmeh10 will allow you to take the first timing higher, or stabilize the upper value. Decreasing pMeh 4 - allows you to take it higher/stabilizes the timing. |
| 4 |
tRFC |
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tRFC - timing controlled by drochr04 |
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| 5 |
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| 6 |
tWTR |
WTR = 35 - 2*drochr06 + pMEH[6] + (eBAL + pMEH[3] - 5) * 4; |
In addition to eBAL, the VDD2 voltage also has an effect. Higher voltage allows for higher timing vallues to be set |
Increasing pmeh6 and/or pmeh 3 will allow you to take the sixth timing higher, or stabilize the upper value |
| 7 |
tRTW |
RTW = 43 - 2*drochr07 + pMEH[5] + (eBAL + pMEH[4] - 5) * 2 |
In addition to eBAL, the VDD2 voltage also has an effect. Higher voltage allows for higher timing vallues to be set |
Increasing pmeh5 and/or pmeh 4 will allow you to take the seventh timing higher, or stabilize the upper value |
| 8 |
tWTP |
WTP = 47 - 2drochr08 + pMEH[7] + (eBAL + 2 - eBAS + pMEH[0] - 5)4; |
The lower the value = (eBAL – eBAS), the higher you can raise the 8 timing. eBAS — ebashift |
Increasing pmeh7 and/or pmeh 0 will allow you to take the eighth timing higher, or stabilize the upper value |