Agilex™ 3 FPGA and SoC C-Series Development Kits User Guide

ID 851698
Date 9/02/2025
Public
Document Table of Contents

A.3.6. HPS I/O48 Interface

The Agilex™ 3 FPGA and SoC C-Series development board connects the 48 HPS I/Os (HPS_GPIO[47:0]) directly to various HPS components on the board. For the Agilex™ 3 FPGA C-Series development board versions, the HPS components are depopulated from the board. The HPS components include: USB2.0 DRP (Dual Role Port), 2-wire UART, 10/100/1000 Ethernet, Micro-SD card, I2C, and JTAG accessibility.
Table 28.  HPS Pin Assignments
Schematic Signal Name FPGA Pin Number I/O Standard Description
HPS_GPIO0 B29 1.8 V HPS LED0
HPS_GPIO1 A27 1.8 V Ethernet interrupt
HPS_GPIO2 C27 1.8 V UART transmit
HPS_GPIO3 F24 1.8 V UART receive
HPS_GPIO4 B28 1.8 V I2C data
HPS_GPIO5 F23 1.8 V I2C clock
HPS_GPIO6 D27 1.8 V Ethernet MDIO
HPS_GPIO7 E22 1.8 V Ethernet MDC
HPS_GPIO8 C26 1.8 V I3C data
HPS_GPIO9 D22 1.8 V I3C clock
HPS_GPIO10 A23 1.8 V HPS 25 MHz clock
HPS_GPIO11 A26 1.8 V HPS LED1
HPS_GPIO12 D25 1.8 V USB2.0 clock
HPS_GPIO13 B26 1.8 V USB2.0 STP
HPS_GPIO14 B25 1.8 V USB2.0 DIR
HPS_GPIO15 E17 1.8 V USB2.0 DATA 0
HPS_GPIO16 A16 1.8 V USB2.0 DATA 1
HPS_GPIO17 E16 1.8 V USB2.0 NXT
HPS_GPIO18 D24 1.8 V USB2.0 DATA 2
HPS_GPIO19 E21 1.8 V USB2.0 DATA 3
HPS_GPIO20 B23 1.8 V USB2.0 DATA 4
HPS_GPIO21 D20 1.8 V USB2.0 DATA 5
HPS_GPIO22 B24 1.8 V USB2.0 DATA 6
HPS_GPIO23 A24 1.8 V USB2.0 DATA 7
HPS_GPIO24 D23 1.8 V SD card data 0
HPS_GPIO25 C25 1.8 V SD card data 1
HPS_GPIO26 A18 1.8 V SD card clock
HPS_GPIO27 C20 1.8 V SD card I/O voltage select
HPS_GPIO28 A17 1.8 V HPS push button 0
HPS_GPIO29 C21 1.8 V SD card data 2
HPS_GPIO30 C23 1.8 V SD card data 3
HPS_GPIO31 E20 1.8 V SD card command
HPS_GPIO32 C22 1.8 V HPS JTAG TCK
HPS_GPIO33 D19 1.8 V HPS JTAG TMS
HPS_GPIO34 B21 1.8 V HPS JTAG TDO
HPS_GPIO35 A22 1.8 V HPS JTAG TDI
HPS_GPIO36 B16 1.8 V Ethernet TX clock
HPS_GPIO37 B18 1.8 V Ethernet TX enable
HPS_GPIO38 E19 1.8 V Ethernet RX clock
HPS_GPIO39 B20 1.8 V Ethernet RX data valid
HPS_GPIO40 C18 1.8 V Ethernet TX data 0
HPS_GPIO41 A21 1.8 V Ethernet TX data 1
HPS_GPIO42 D17 1.8 V Ethernet RX data 0
HPS_GPIO43 A19 1.8 V Ethernet RX data 1
HPS_GPIO44 D18 1.8 V Ethernet TX data 2
HPS_GPIO45 B19 1.8 V Ethernet TX data 3
HPS_GPIO46 C17 1.8 V Ethernet RX data 2
HPS_GPIO47 C16 1.8 V Ethernet Rx data 3