Intel® Stratix® 10 SX SoC Development Kit User Guide

ID 683303
Date 6/02/2023
Public
Document Table of Contents

4.8.1. HPS IO-48 OOBE Daughter Card

This is a daughter card for the Intel® Stratix® 10 SoC IO48 interface. The two types of Intel® Stratix® 10 SoC Development Kit IO48 daughter cards are OOBE and NAND Flash. These IO48 daughter cards are plugged into the Samtec IO48 connector.

Figure 6. HPS IO-48 OOBE Daughter Card Picture

Feature Summary

Table 25.  IO48 OOBE Daughter Card Feature Summary
Feature Description
IO48 Connector
  • Samtec QTH-030 Series 60-pin connector on IO48 daughter card side
  • Samtec QSH-030 Series 60-pin connector on motherboard
10/100/1000 Mbps Ethernet PHY with RGMII interface
  • Microchip KSZ9031RNX Ethernet PHY
  • RGMII MAC Interface
  • MDC/MDIO Management Interface
  • Standard RJ-45 with Integrated Ethernet Transformer
UART
  • FTDI FT232R UART USB Convertor
  • Standard USB Mini-B Receptacle
Micro-SD Card Connector
  • 4-bit SD card Data Bus
  • Standard Micro SD Card Socket
USB 2.0
  • Microchip USB3320 USB 2.0 PHY
  • ULPI interface connects the USB PHY to Intel® Stratix® 10 HPS IO48 interface
  • Standard USB Micro-AB Receptacle
  • VBUS current limitation when VBUS is sourced to peripheral device
JTAG
  • Mictor 38-pin connector pinouts (JTAG only without Trace signals)
  • Two JTAG target with resisters MUX
    • FPGA chained JTAG pins in SDM
    • HPS dedicated JTAG pins in IO48 (by default)
I2C
  • HPS I2C and FPGA I2C are connected on the motherboard
GPIO
  • 2 Push Buttons
  • 3 LEDs
  • 1 Ethernet Interrupt from Ethernet PHY
  • 1 USB over-current indicator
HPS Clock On-board 25 MHz oscillator provides HPS clock
Mechanical 3" x 1.8" board size
Figure 7. OOBE Daughter Card Block Diagram

IO48 Interface

Stratix 10 SoC IO48 bank can be multiplexed to different peripheral interfaces. The OOBE daughter card is multiplexed with USB 2.0, Ethernet RGMII, UART, I2C, JTAG, MicroSD card and GPIO interfaces.

Table 26.  IO48 Pinout MUX
HPS Pin Name Peripheral Name Signal
Q1_1 USB0 CLK
Q1_2 USB0 STP
Q1_3 USB0 DIR
Q1_4 USB0 DATA0
Q1_5 USB0 DATA1
Q1_6 USB0 NXT
Q1_7 USB0 DATA2
Q1_8 USB0 DATA3
Q1_9 USB0 DATA4
Q1_10 USB0 DATA5
Q1_11 USB0 DATA6
Q1_12 USB0 DATA7
Q2_1 EMAC0 TX_CLK
Q2_2 EMAC0 TX_CTL
Q2_3 EMAC0 RX_CLK
Q2_4 EMAC0 RX_CTL
Q2_5 EMAC0 TXD0
Q2_6 EMAC0 TXD1
Q2_7 EMAC0 RXD0
Q2_8 EMAC0 RXD1
Q2_9 EMAC0 TXD2
Q2_10 EMAC0 TXD3
Q2_11 EMAC0 RXD2
Q2_12 EMAC0 RXD3
Q3_1 GPIO1 IO0
Q3_2 GPIO1 IO1
Q3_3 UART0 TX
Q3_4 UART0 RX
Q3_5 GPIO1 IO4
Q3_6 GPIO1 IO5
Q3_7 I2C1 SDA
Q3_8 I2C1 SCL
Q3_9 JTAG TCK
Q3_10 JTAG TMS
Q3_11 JTAG TDO
Q3_12 JTAG TDI
Q4_1 SDMMC DATA0
Q4_2 SDMMC CMD
Q4_3 SDMMC CCLK
Q4_4 SDMMC DATA1
Q4_5 SDMMC DATA2
Q4_6 SDMMC DATA3
Q4_7 CM HPS_OSC_CLK
Q4_8 GPIO1 IO19
Q4_9 GPIO1 IO20
Q4_10 GPIO1 IO21
Q4_11 MDIO0 MDIO
Q4_12 MDIO0 MDC

Connector to Motherboard

To connect between the motherboard and IO48 OOBE daughter card, Samtec QSH/QTH series connectors are applied. Samtec QTH-030 60-pin connector is used on IO48 OOBE daughter card while Samtec QSH-030 60-pin connector is at the motherboard side.

10/100/1000 Mbps Ethernet PHY

This board supports copper RJ-45 10/100/1000 Mbps Ethernet using an external Ethernet PHY Microchip KSZ9031RNX. The PHY-to-MAC interface employs RGMII using Intel® Stratix® 10 SoC IO48 EMAC0 to transmit and receive data. For management interface, it uses MDC/MDIO interface between EMAC0 and Ethernet PHY.

Figure 8. Ethernet Block Diagram
Table 27.  Ethernet Signals List
Net Name IO48 Location Type Description
ENET_TXD0 Q2_5 IN RGMII Data Transmit Bit 0
ENET_TXD1 Q2_6 IN RGMII Data Transmit Bit 1
ENET_TXD2 Q2_9 IN RGMII Data Transmit Bit 2
ENET_TXD3 Q2_10 IN RGMII Data Transmit Bit 3
ENET_GTX_CLK Q2_1 IN RGMII Transmit Reference Clock
ENET_TX_EN Q2_2 IN RGMII Transmit Control (TX_CTL)
ENET_RXD0 Q2_7 OUT RGMII Data Receive Bit 0
ENET_RXD1 Q2_8 OUT RGMII Data Receive Bit 1
ENET_RXD2 Q2_11 OUT RGMII Data Receive Bit 2
ENET_RXD3 Q2_12 OUT RGMII Data Receive Bit 3
ENET_RX_CLK Q2_3 OUT RGMII Receive Reference Clock
ENET_RX_DV Q2_4 OUT RGMII Receive Control (RX_CTL)
ENET_MDC Q4_12 IN Management Clock
ENET_MDIO Q4_11 INOUT Management Data
ENET_INTn Q3_1 OUT Ethernet PHY Interrupt Output
ENET_RESETn   IN Ethernet PHY reset input connected to HPS_RESETn

UART

The IO48 OOBE daughter card uses a USB based UART bridge chip (FTDI FT232R) to bridge communication to a host for general UART usage. This chip uses TXD and RXD for transmission and reception of data.

Table 28.  UART Signals List
Net Name IO48 Location Type Description
UART_TX Q3_3 IN UART TX from Intel® Stratix® 10 HPS to FT232R
UART_RX Q3_4 OUT UART RX from FT232R to Intel® Stratix® 10 HPS
UART_RESETn   IN FT232R Reset Input connected to HPS_RESETn

Based on signal direction, HPS IO48's UART_TX is connected to FT232R's RXD pin and HPS IO48's UART_RX is connected to FT232R's TXD.

Figure 9. UART Connection

Micro SD Connector

Intel® Stratix® 10 provides a Secure Digital/ Multimedia Card (SD/MMC) controller for interfacing to external SD/MMC flash cards, secure digital I/O devices and Consumer Electronics Adavnced Transport Architecture (CE-ATA) hard drives.

On IO48 OOBE daughter card, there is a standard MicroSD Memory Card connector that supports 4-bit SD memory interface.

Table 29.  MicroSD Card Signal list
Net Name IO48 Location Type Description
SD_DATA0 Q4_1 INOUT Bi-directional data signal bit 0
SD_DATA1 Q4_4 INOUT Bi-directional data signal bit 1
SD_DATA2 Q4_5 INOUT Bi-directional data signal bit 2
SD_DATA3 Q4_6 INOUT Bi-directional data signal bit 3
SD_CMD Q4_2 INOUT Bi-directional command/response signal
SD_CLK Q4_3 IN Host to card clock signal
SD_POWER_ON   IN SD card power ON/OFF control wired to HPS_RESETn

USB 2.0

Intel® Stratix® 10 HPS provides a USB On-the-Go (OTG) controller that supports both device and host functions. The controller supports all high-speed, full-speed and low-speed transfers in both device and host modes. Microchip USB 2.0 PHY USB3320 is used on IO48 OOBE daughter card with ULPI interface. A USB 2.0 Micro-AB receptacle to interface external USB host or device.

Table 30.  USB 2.0 PHY Signal List
Net Name IO48 Location Type Description
USB_DATA0 Q1_4 INOUT ULPI bidirectional data bus bit 0
USB_DATA1 Q1_5 INOUT ULPI bidirectional data bus bit 1
USB_DATA2 Q1_7 INOUT ULPI bidirectional data bus bit 2
USB_DATA3 Q1_8 INOUT ULPI bidirectional data bus bit 3
USB_DATA4 Q1_9 INOUT ULPI bidirectional data bus bit 4
USB_DATA5 Q1_10 INOUT ULPI bidirectional data bus bit 5
USB_DATA6 Q1_11 INOUT ULPI bidirectional data bus bit 6
USB_DATA7 Q1_12 INOUT ULPI bidirectional data bus bit 7
USB_CLK Q1_1 OUT ULPI clock output
USB_NXT Q1_6 OUT ULPI next data
USB_STP Q1_2 IN ULPI stop data
USB_DIR Q1_3 OUT ULPI data bus direction
USB_VFLAGn Q3_2 OUT USB over-current limit indicator to HPS IO48 GPIO pin
USB_RESETn   IN USB3320 reset input connected to HPS_RESETn

JTAG

The JTAG interface is routed to Mictor 38-pin connector. Other trace signals are not routed to Mictor 38-pin due to the pinout limitation.

There are two JTAG sources for the HPS-JTAG: Mictor 38-pin connector, or SDM chained JTAG pins from the mother board. They are selected with on board resistor MUX by soldering suitable resistors. By default, all resistors are soldered, thus both sources can drive the HPS_JTAG pins.

If Mictor is selected to be the source, the MAX on motherboard can tri-state the FPGA_JTAG pins thus give control to the Probe on Mictor. If MAX is to be the source, no Probe can be connected to the Mictor thus MAX is the only source.

Figure 10. JTAG
Table 31.  JTAG Signal List
Net Name IO48 Location Type Description
HPS_JTAG_TCK Q3_9 OUT HPS dedicated JTAG TCK on IO48
HPS_JTAG_TMS Q3_10 OUT HPS dedicated JTAG TMS on IO48
HPS_JTAG_TDO Q3_11 IN HPS dedicated JTAG TDO on IO48
HPS_JTAG_TDI Q3_12 OUT HPS dedicated JTAG TDI on IO48
FPGA_JTAG_TCK   IN SDM chained JTAG TCK on SDM bank
FPGA_JTAG_TMS   IN SDM chained JTAG TMS on SDM bank
FPGA_JTAG_TDO   OUT SDM chained JTAG TDO on SDM bank
FPGA_JTAG_TDI   IN SDM chained JTAG TDI on SDM bank
MICTOR_JTAG_TCK   IN Mictor JTAG TCK on Mictor Connector
MICTOR_JTAG_TMS   IN Mictor JTAG TMS on Mictor Connector
MICTOR_JTAG_TDO   OUT Mictor JTAG TDO on Mictor Connector
MICTOR_JTAG_TDI   IN Mictor JTAG TDI on Mictor Connector
MICTOR_JTAG_TRSTn   IN Mictor JTAG TRSTn on Mictor Connector

I2C

The FPGA I2C and HPS I2C are connected on motherboard. HPS I2C left floating on this IO48 OOBE daughter card although it is connected to IO48 connector. A 3-pin 2.54 mm header is reserved on the OOBE daughter card with HPS I2C

GPIO

Remainder GPIO pins on IO48 are used as push buttons and LEDs.

Table 32.  IO48 GPIO Signal List
Net Name IO48 Location Type Description
HPS_PB0 Q3_5 OUT Push Button 0 on daughter card
HPS_PB1 Q3_6 OUT Push Button 1 on daughter card
HPS_LED0 Q4_9 IN LED 0 on daughter card active high
HPS_LED1 Q4_8 IN LED 1 on daughter card active high
HPS_LED2 Q4_10 IN LED 2 on daughter card active high
ENET_INTn Q3_1 OUT Ethernet PHY interrupt output
USB_VFLAGn Q3_2 OUT USB over-current limit indicator to HPS IO48 GPIO pin

HPS Clock

One on board oscillator provides a fixed 25 MHz single-ended clock for HPS PLL input (HPS_OSC_CLK). The OOBE card do not support clock frequency adjustment and external clock injection.

Figure 11. HPS Clock

Power

There are two power rails drawn from motherboard through Samtec connector VCC_12V and VCCIO_HPS.

VCC_12V is major power source for IO48 OOBE daughter card and it will be converted to other power rails with on board regulators. It is recommended to have at least 1 A capability on VCC_12V power rail.

VCCIO_HPS is HPS I/O buffers power supply also from the motherboard. It is 1.8V nominal.

Figure 12. Power Tree

Reset

Reset is from Intel® MAX® 10 CPLD on the Intel® Stratix® 10 SoC mother board. The Intel® MAX® 10 controls all device's resets on the development kit.

Figure 13. Reset Diagram