Visible to Intel only — GUID: rpt1674685505834
Ixiasoft
Visible to Intel only — GUID: rpt1674685505834
Ixiasoft
5.15.1. I/O Pin Multiplexing Differences Among Intel SoC Device Families
The available I/Os on SoC devices are divided into the following categories:
- Dedicated function: Each I/O has only one function and cannot be used for other purposes.
- Dedicated I/O with loaner capability: The I/Os are primarily used by the HPS, but individual I/Os can be used by the FPGA if the HPS is not using them.
- Dedicated I/O: The I/Os can be used only by the HPS. The pins are not accessible to logic in the FPGA.
- Shared I/O: The I/Os can be used by either the HPS or the FPGA. These pins are used by high-speed peripherals such as EMAC and USB.
- FPGA I/O: These I/Os can only be used by the FPGA. Slow speed peripherals can be routed through the FPGA fabric and assigned to FPGA I/O.
HPS I/O Pin Multiplexing Feature | Cyclone® V SoC, Arria® V SoC |
Arria® 10 SoC | Stratix® 10 SoC, Intel® Agilex™ 7 F-Series/I-Series/M-Series SoC |
Intel Agilex® 5 E-Series/D-Series SoC |
---|---|---|---|---|
Reset pins | 3 dedicated functions | 2 dedicated functions | Choose one of the available SDM optional pins | Choose one of the available SDM optional pins |
Clock pins | 2 dedicated functions | 1 dedicated function | Choose one of the 48 dedicated I/Os | Choose one of the 48 dedicated I/Os |
JTAG pins | 5 dedicated pins JTAG interface is independent of FPGA JTAG interfaces |
Chained internally into FPGA JTAG interface | 4 optional pins from the 48 dedicated I/Os
Independent or chained internally into FPGA JTAG interface |
4 optional pins from the 48 dedicated I/Os
Independent or chained internally into FPGA JTAG interface |
Peripheral pins | Cyclone V SoC: Up to 67 dedicated I/Os with loaner capability Arria V SoC: Up to 94 dedicated I/Os with loaner capability |
14 dedicated I/Os 26 48 shared I/Os |
48 dedicated I/Os (including pins used for clock and JTAG) 26 |
48 dedicated I/Os (including pins used for clock and JTAG) 26 |
Supported voltage | 3.3V 2.0V 2.5V 1.8V 1.5V |
3.0V 2.5V 1.8V |
1.8V | 1.8V |