The SCU35 board provides two Raspberry Pi HAT expansion headers connected to XCSU35P HDIO banks 45 & 46.
All XCSU35P I/Os connecting to HAT interface support single-ended line rate of:
- 250 Mb/s for LVCMOS 3.3/2.5V, SSTL/HSTL 3.3/2.5V
- 300 Mb/s for LVCMOS 1.8/1.5/1.2V
- 400 Mb/s at SSTL/HSTL 1.8/1.5V
A maximum current of 0.5 A may be drawn from the 3.3 V rail and 1.5 A from the 5 V rail. Load switches with reverse current protection are provided on both rails.
For more information about HAT boards, mechanical specification, etc., see https://github.com/raspberrypi/hats.
Note: The SCU35 board does not support HAT boards that supply
power.
Important: The XCSU35P FPGA I/Os are not 5V
tolerant. Raspberry Pi HATs that use 5V I/O cannot be used with the SCU35 board. The
maximum voltage that can be applied to the XCSU35P FPGA HD I/Os is Vcco + 0.550V.
Additionally, the FPGA bank I/O voltage must match the requirements for the I/O
standards that have been assigned to the I/O bank.