# # CPU DDR4 Controller to DDR4 Memory Chips # ----- # # Power Supply and Sundry Net List # --------------------------------------------- # # # Initial Rev. 29-Dec-2022 # Current Rev. 1-Dec-2023 # # # This net list holds the Power and Ground connections # on each Memory Chip and 2 Sundry pins on each of # these chips. # # The DDR4 memory chips which are assumed to be Micron # MT40A1G16 16 Gbit, 1 Gig Address by 16 Data Bits in the # 96 pin BGA package. # # U1 is the MPFS250T FPGA-CPU in the FCVG784 package # # U401 is the MT40A1G16 SDRAM for data bits 0:15 # U402 is the MT40A1G16 SDRAM for data bits 16:31 # # # The ZQ signal has an external 240 Ohm resistor to # Ground - a separate resistor for each of the 2 SDRAM chips. # # # This file has 44 pin on each Memory Chip # and no pins on the DDR4 Memory Controller. # # # For the 2 Memory Chips: # # the ZQ Reference Resistors # # the Clock Termination Resistors and Capacitors # # the ALERT_B Pull-Up Resistor # # the RESET_B Pull-Down Resistor # # the TEN Pull-Down Resistor # # the Un-Used pin on each Memory Chip # NET 'ZQ_REFERENCE_U401' U401-F9 R428-2 NET 'ZQ_REFERENCE_U402' U402-F9 R429-2 NET 'GROUND' R428-1 R429-1 NET 'DDR4_CPU_ClK_CMP' R426-2 NET 'DDR4_CPU_CLK_DIR' R427-2 NET 'DDR4_CPU_CLK_TERM' R426-1 R427-1 NET 'DDR4_CPU_CLK_TERM' C485-2 C486-2 NET 'BULK_1V2' C485-1 C486-1 NET 'DDR4_CPU_ALERT_B' R430-2 NET 'BULK_1V2' R430-1 NET 'DDR4_CPU_RESET_B' R431-2 NET 'GROUND' R431-1 NET 'DDR4_CPU_TEN' R432-2 NET 'GROUND' R432-1 NET 'NO_CONN_U401_PIN_T7' U401-T7 NET 'NO_CONN_U402_PIN_T7' U402-T7 # # U401 Power and Ground # NET 'BULK_1V2' U401-B3 U401-B9 U401-D1 U401-G7 U401-J1 # VDD NET 'BULK_1V2' U401-J9 U401-L1 U401-L9 U401-R1 U401-T9 NET 'BULK_1V2' U401-A1 U401-A9 U401-C1 U401-D9 U401-F2 # VDDQ NET 'BULK_1V2' U401-F8 U401-G1 U401-G9 U401-J2 U401-J8 NET 'Digital_2V5' U401-B1 U401-R9 # VPP NET 'DDR4_VREF_CPU' U401-M1 # VREF NET 'GROUND' U401-B2 U401-E1 U401-E9 U401-G8 U401-K1 # VSS NET 'GROUND' U401-K9 U401-M9 U401-N1 U401-T1 NET 'GROUND' U401-A2 U401-A8 U401-C9 U401-D2 U401-D8 # VSSQ NET 'GROUND' U401-E3 U401-E8 U401-F1 U401-H1 U401-H9 # # U402 Power and Ground # NET 'BULK_1V2' U402-B3 U402-B9 U402-D1 U402-G7 U402-J1 # VDD NET 'BULK_1V2' U402-J9 U402-L1 U402-L9 U402-R1 U402-T9 NET 'BULK_1V2' U402-A1 U402-A9 U402-C1 U402-D9 U402-F2 # VDDQ NET 'BULK_1V2' U402-F8 U402-G1 U402-G9 U402-J2 U402-J8 NET 'Digital_2V5' U402-B1 U402-R9 # VPP NET 'DDR4_VREF_CPU' U402-M1 # VREF NET 'GROUND' U402-B2 U402-E1 U402-E9 U402-G8 U402-K1 # VSS NET 'GROUND' U402-K9 U402-M9 U402-N1 U402-T1 NET 'GROUND' U402-A2 U402-A8 U402-C9 U402-D2 U402-D8 # VSSQ NET 'GROUND' U402-E3 U402-E8 U402-F1 U402-H1 U402-H9 # # Bypass Capacitors for U401 # NET 'BULK_1V2' C401-1 C402-1 C403-1 C404-1 C405-1 NET 'BULK_1V2' C406-1 C407-1 C408-1 C409-1 C410-1 NET 'BULK_1V2' C411-1 C412-1 C413-1 C414-1 C415-1 NET 'BULK_1V2' C416-1 C417-1 NET 'GROUND' C401-2 C402-2 C403-2 C404-2 C405-2 NET 'GROUND' C406-2 C407-2 C408-2 C409-2 C410-2 NET 'GROUND' C411-2 C412-2 C413-2 C414-2 C415-2 NET 'GROUND' C416-2 C417-2 NET 'Digital_2V5' C420-1 C421-1 C422-1 C423-1 C424-1 NET 'Digital_2V5' C425-1 NET 'GROUND' C420-2 C421-2 C422-2 C423-2 C424-2 NET 'GROUND' C425-2 NET 'DDR4_VREF_CPU' C427-1 C428-1 C429-1 NET 'GROUND' C427-2 C428-2 C429-2 # # Bypass Capacitors for U402 # NET 'BULK_1V2' C431-1 C432-1 C433-1 C434-1 C435-1 NET 'BULK_1V2' C436-1 C437-1 C438-1 C439-1 C440-1 NET 'BULK_1V2' C441-1 C442-1 C443-1 C444-1 C445-1 NET 'BULK_1V2' C446-1 C447-1 NET 'GROUND' C431-2 C432-2 C433-2 C434-2 C435-2 NET 'GROUND' C436-2 C437-2 C438-2 C439-2 C440-2 NET 'GROUND' C441-2 C442-2 C443-2 C444-2 C445-2 NET 'GROUND' C446-2 C447-2 NET 'Digital_2V5' C450-1 C451-1 C452-1 C453-1 C454-1 NET 'Digital_2V5' C455-1 NET 'GROUND' C450-2 C451-2 C452-2 C453-2 C454-2 NET 'GROUND' C455-2 NET 'DDR4_VREF_CPU' C457-1 C458-1 C459-1 NET 'GROUND' C457-2 C458-2 C459-2