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| Entry | Contents | Purpose | Notes |
|---|---|---|---|
| SIG_RENAME_RULES | DQS$:DQS_P,CK$:CK_P,#$:_N,A10:A10_AP,A12:A12_BC_N | changes any pin ending in # to _N adds P to any pin ending in CK (so CK->CK_P) adds P to any pin ending in DQS (so LDQS->LDQS_P) they can be identified as diff pairs It also add AP suffix to A10 pin A10_AP and the _BCN suffix to A12 pin (A12_BC_N) (These suffixes did not appear in IBIS model) | we can also store this in a rename_rules.txt file and change the entry to rename_rules.txt if we do use the file, we need to add a backslash in front of the '#' character so that partBuilder does not think its a comment rename_rules.txt would look like this: DQS$:DQS_P CK$:CK_P \#$:_N A10:A10_AP A12:A12_BC_N |
| PCHK_DEVICE_PIN_NUMBERS | BGA_PIN_NUMS[A1..T3],BGA_PIN_NUMS[A7..T9] | Tells partBuilder what valid pin numbers to expect | |
| IBIS_COMPONENT_PACKAGE | MT41K512M16HA:v91a_96ball_pkg | Tells partBuilder to use the 96 PIN component from the IBIS_FILE | This was setup when PartBuilder prompted the user to select from the list of components found in the IBIS FILE |
| NUM_PINS | 96 | Tells partBuilder to expect 96 pins | This was setup by PartBuilder the first time it read the 96 pin IBIS component |
| PinName Matches | purpose | notes |
|---|---|---|
| ^A[15:0],^ck,dqs,# | shows us all the Address, clock and dqs pins and also the pins ending in '#' | we use this before we add the rename_rules to show what we get out of ibis then we add the rename rules and re-read the pins to show how the names get changed |
| VREF | we use this match to find the VREF pins | we will remap the matching pins from power to input, which will make smart-frac work better, we will also remap the pin_group to ALL_SIGNAL_PINS which will have a beneficial effect when the next smart-frac update is released |
| ZQ | we use this match to find the ZQ pin | we will remap the pin_type from power to analog we will also remap the pin_group to ALL_SIGNAL_PINS which will have a beneficial effect when the next smart-frac update is released |