1.1 Power Supplies

The following figure shows the typical power supply requirements for SmartFusion2/IGLOO2 devices. For more information about decoupling capacitors associated with individual power supplies, see Table 1-2.

Figure 1-1. Power Supplies
Important: The power supply settings for all the PLLs (Auxiliary PLL PCIe Supply, SerDes, MDDR, FDDR, and CCC) must be the same in Libero® SoC and on the board. The PLLs (Auxiliary PLL PCIe Supply, SerDes, MDDR, FDDR, and CCC) can be connected to a 2.5V or 3.3V supply.

For M2S090T(S), M2GL090T(S), M2S150T(S), and M2GL150T(S) devices, the VPP and VPPNVM must be connected to a 3.3V supply.

For the CCC_xyz_PLL supplies, xy refers to the location of the PLL in the device (NE/ NW/ SW) and z refers to the number associated with the PLL (0 or 1).

The PLL RC values shown in the preceding figure are applicable to all variants of SmartFusion2/IGLOO2 devices.

When the power rails are in use, see Figure 1-1. For unused cases, see Figure 1-3. The power supply needed for IGLOO2 and SmartFusion2 FPGAs is Core VDD (Fabric voltage). Serdes_VDD is tied to VDD internally. Therefore, the same regulator must be used to drive SERDES_x_VDD, SERDES_x_Lyz_VDDAIO, and Core VDD together.

For the device-package combinations listed in the following table, the SERDES_x_VDD pins are shorted with VDD pins inside the package substrate to free the package pins.

Table 1-1. Device-Package Combinations Without SERDES_x_VDD Pin
DevicePackage
M2S025T, M2GL025T FCS325
M2S050T(S), M2GL050T(S) FCS325
M2S060T(S), M2GL060T(S) FCS325
M2S90T(S), M2GL90T(S) FCS325
M2S10T(S), M2GL010T(S) VF256
M2S025TS, M2S025T, M2GL025TS, M2GL025T VF256
M2S150T(S), M2GL150T(S) FCV484
M2S150TS, M2S150T, M2GL150TS, M2GL150T FCS536

For detailed pin descriptions, see DS0115: SmartFusion2 Pin Descriptions Datasheet or DS0124: IGLOO2 Pin Descriptions Datasheet .