Intel Agilex® 7 FPGA I-Series Transceiver (6 × F-Tile) Development Kit User Guide

ID 776646
Date 5/31/2023
Public
Document Table of Contents

A.7. Communication Interfaces

MCIO Port (J37)

The MCIO slot is a PCIe Gen4 x4 port which fans out from Intel Agilex® 7 I-Series FPGA F-tile. This port is designed to meet the standard MCIO pinout.

System Intel® MAX® 10 acts as the board management controller (BMC) of the development kit. It manages power up reset for both PCIe* root port and PCIe* end point. PCIE_1_PERSTn_A signal acts as output and input respectively.

Table 12.  MCIO Port
Schematic Signal Name Description
PCIE_1_PERSTn_A PCIe* endpoint/rootport reset
PCIE_1_ALERTn_A PCIe* Alert
PCIE_100M_REF_AP/AN PCIe* reference clock
PCIE_1_SCL_A/SDA_A PCIe* I2C bus
PCIE_1_TX_[0:3]_DP/DN Transceiver TX
PCIE_1_RX_[0:3]_DP/DN Transceiver RX

QSFPDD

Intel Agilex® 7 I-Series development kit supports 4x QSFPDD ports. QSFPDD port fans out from the Intel Agilex® 7 I-Series FPGA F-tile (FGT). All 8 channels per QSFPDD can run up to 25 Gbps NRZ and 50 Gbps PAM4.

Table 13.  QSFPDD Connector -0 (12B/J27)
Schematic Signal Names Description
QSFPDD0_MODPRS_L Module present
QSFPDD0_RESET_L Module reset
QSFPDD0_MODSEL_L Mode select
QSFPDD0_LPMODE Initial mode
QSFPDD0_INT_L Interrupt
I2C_QSFP_1_SCL I2C clock
I2C_QSFP_1_SDA I2C data
QSFPDD0_TX_[0:7]_DP/DN Transceiver TX
QSFPDD0_RX_[0:7]_DP/DN Transceiver RX
Table 14.  QSFPDD Connector 1 (12C/J48)
Schematic Signal Names Description
QSFPDD1_MODPRS_L Module present
QSFPDD1_RESET_L Module reset
QSFPDD1_MODSEL_L Mode select
QSFPDD1_LPMODE Initial mode
QSFPDD1_INT_L Interrupt
I2C_QSFP_3_SCL I2C clock
I2C_QSFP_3_SDA I2C data
QSFPDD1_TX_[0:7]_DP/DN Transceiver TX
QSFPDD1_TX_[0:7]_DP/DN Transceiver RX
Table 15.  QSFPDD Connector -2 (13A/J69)
Schematic Signal Names Description
QSFPDD2_MODPRS_L Module present
QSFPDD2_RESET_L Module reset
QSFPDD2_MODSEL_L Mode select
QSFPDD2_LPMODE Initial mode
QSFPDD2_INT_L Interrupt
I2C_QSFP_2_SCL I2C clock
I2C_QSFP_2_SDA I2C data
QSFPDD2_TX_[0:7]_DP/DN Transceiver TX
QSFPDD2_RX_[0:7]_DP/DN Transceiver RX
Table 16.  QSFPDD Connector -3 (13B/J67)
Schematic Signal Names Description
QSFPDD3_3V3_MODPRS_L Module present
QSFPDD3_3V3_RESET_L Module reset
QSFPDD3_3V3_MODSEL_L Mode select
QSFPDD3_3V3_LPMODE Initial mode
QSFPDD3_3V3_INT_L Interrupt
I2C_QSFP_2_SCL I2C clock
I2C_QSFP_2_SDA I2C data
QSFPDD3_TX_[0:7]_DP/DN Transceiver TX
QSFPDD3_RX_[0:7]_DP/DN Transceiver RX

QSFPDD800

Intel Agilex® 7 I-Series development kit supports 1x QSFPDD800 port. QSFPDD800 port fans out from the Intel Agilex® 7 I-Series FPGA F-tile (FHT). The FHT Tile from bank 12B and 12C can run up to 400 Gbps (50 G x 8) PAM4 in DK-SI-AGI040FES. 4 FHT lanes from bank 12B+4 FHT lanes from bank 12C are terminated directly to QSFPDD800 connector lanes [0:7] (J22).

Note: QSFPDD800 works up to 800 Gbps (100 G x 8) PAM4 in DK-SI-AGI040EA.
Table 17.  QSFPDD800 (12B+12C)
Schematic Signal Names Description
QSFPDD800_MODPRS_L Module present
QSFPDD800_RESET_L Module reset
QSFPDD800_MODSEL_L Mode select
QSFPDD800_LPMODE Initial mode
QSFPDD800_INT_L Interrupt
I2C_QSFP_1_SCL I2C clock
I2C_QSFP_1_SDA I2C data
QSFPDD800_TX_[0:7]_DP/DN Transceiver TX
QSFPDD800_RX_[0:7]_DP/DN Transceiver RX

QSFP

Intel Agilex® 7 I-Series development kit supports 3x QSFP ports. QSFP port fans out from the Intel Agilex® 7 I-Series FPGA F-tile (FGT). All 4 channels can run up to 1 Gbps per lane.

Table 18.  QSFP Connector-0 (12B/J57)
Schematic Signal Names Description
QSFP0_MOD_PRS_N Module present
QSFP0_RST Module reset
QSFP0_MOD_SEL_L Mode select
QSFP0_LP_MODE Initial mode
QSFP0_INTERRUPT_N Interrupt
I2C_QSFP_1_SCL I2C clock
I2C_QSFP_1_SDA I2C data
QSFP0_TX_[0:3]_DP/DN Transceiver TX
QSFP0_RX_[0:3]_DP/DN Transceiver RX
Table 19.  QSFP Connector-1 (12C/J58)
Schematic Signal Names Description
QSFP1_MOD_PRS_N Module present
QSFP1_RST Module reset
QSFP1_MOD_SEL_L Mode select
QSFP1_LP_MODE Initial mode
QSFP1_INTERRUPT_N Interrupt
I2C_QSFP_3_SCL I2C clock
I2C_QSFP_3_SDA I2C data
QSFP1_TX_[0:3]_DP/DN Transceiver TX
QSFP1_RX_[0:3]_DP/DN Transceiver RX
Table 20.  QSFP Connector-2 (13A/J66)
Schematic Signal Names Description
QSFP2_MOD_PRS_N Module present
QSFP2_RST Module reset
QSFP2_MOD_SEL_L Mode select
QSFP2_LP_MODE Initial mode
QSFP2_INTERRUPT_N Interrupt
I2C_QSFP_2_SCL I2C clock
I2C_QSFP_2_SDA I2C data
QSFP2_TX_[0:3]_DP/DN Transceiver TX
QSFP2_RX_[0:3]_DP/DN Transceiver RX

OSFP

Intel Agilex® 7 I-Series development kit supports OSFP ports. OSFP port fans out from the Intel Agilex® 7 I-Series FPGA F-tile (FHT). The FHT Tile from bank 13B and 13C can run up to 400 Gbps (50 G x 8) PAM4 in DK-SI-AGI040FES. 4 FHT lanes from bank 13B + 4 FHT lanes from bank 13C are terminated directly to OSFP connector lanes [0:7] (J45).

Note: OSFP works up to 800 Gbps (100 G x 8) PAM4 in DK-SI-AGI040EA.
Table 21.  OSFP (13B+13C)
Schematic Signal Names Description
OSFP_LPW_PRSNT_N Initial mode/Module Present
OSFP_INT_RST_N Interrupt/Reset
I2C_OSFP_3V3_SCL I2C clock
I2C_OSFP_3V3_SDA I2C data
OSFP_TX[0:7]_DP/DN Transceiver TX
OSFP_RX[0:7]_DP/DN Transceiver RX

SFP

Intel Agilex® 7 I-Series development kit supports 4x SFP ports. SFP port fans out from the Intel Agilex® 7 I-Series FPGA F-tile (FGT). All 4 channels can run up to 1 Gbps/each SFP channel.

Table 22.  SFP (12C/J77)
Schematic Signal Names Description
SFP3_TX_DISABLE Transmitter Disable
SFP3_RATE_SEL Module Rate Select 0
SFP3_MOD0_PRSNT_N Module Present
SFP3_LOS Loss of Signal
SFP3_TX_FAULT Transmitter Fault Indication
SFP3_RS1 Module rate select 1
SFP3_MOD0_SCL I2C clock
SFP3_MOD0_SDA I2C data
SFP3_TX_DP/DN Transceiver TX
SFP3_RX_DP/DN Transceiver RX
SFP2_TX_DISABLE Transmitter Disable
SFP2_RATE_SEL Module Rate Select 0
SFP2_MOD1_PRSNT_N Module Present
SFP2_LOS Loss of Signal
SFP2_TX_FAULT Transmitter Fault Indication
SFP2_RS1 Module rate select 1
SFP2_MOD1_SCL I2C clock
SFP2_MOD1_SDA I2C data
SFP2_TX_DP/DN Transceiver TX
SFP2_RX_DP/DN Transceiver RX
SFP1_TX_DISABLE Transmitter Disable
SFP1_RATE_SEL Module Rate Select 0
SFP1_MOD2_PRSNT_N Module Present
SFP1_LOS Loss of Signal
SFP1_TX_FAULT Transmitter Fault Indication
SFP1_RS1 Module rate select 1
SFP1_MOD2_SCL I2C clock
SFP1_MOD2_SDA I2C data
SFP1_TX_DP/DN Transceiver TX
SFP1_RX_DP/DN Transceiver RX
SFP0_TX_DISABLE Transmitter Disable
SFP0_RATE_SEL Module Rate Select 0
SFP0_MOD3_PRSNT_N Module Present
SFP0_LOS Loss of Signal
SFP0_TX_FAULT Transmitter Fault Indication
SFP0_RS1 Module rate select 1
SFP0_MOD3_SCL I2C clock
SFP0_MOD3_SDA I2C data
SFP0_TX_DP/DN Transceiver TX
SFP0_RX_DP/DN Transceiver RX

FMC + Connectors

Intel Agilex® 7 FPGA I- Series development kit supports 2x FMC+ slots for functional expandability. The x16 FGT lanes from bank 13C and 12A are terminated to FMC-A (J7) and FMC-B (J9) connectors respectively. Auxiliary signals are controlled by the System Intel® MAX® 10.

Serial Buses

SDM I/Os (SDM_IO0/12) and Intel® MAX® 10 I/Os (VCCL_SDA/SCL) share the same I2C bus which talks with Intel Agilex® 7 FPGA core regulators. By default, SDM acts as SmartVID master and system Intel® MAX® 10 act as Power GUI master in this chain.

System Intel® MAX® 10 I/Os (PMB_SDA/SCL) manages the second I2C bus which access all I2C slave regulators, except Intel Agilex® 7 FPGA core regulators.

System Intel® MAX® 10 supports I2C master dedicated to clock related devices (CLK_I2C_SDA/SCL), which manages 4# clock devices and SPI from Intel Agilex® 7 could control SI5518 (clock device).

Intel Agilex® 7/System Intel® MAX® 10 also manages QSFPDD800, 4x QSFPDD, 1DPC DIMM, 3x QSFP, SFP, OSFP, 2x FMC, MCIO I2C buses System Intel® MAX® 10 supports as a I2C Master for Current (IVSNS_I2C_SDA /SCL) and Temperature sensors (T_SNS_SCL/SDA).

SGPI Interface exists between System Intel® MAX® 10 and Intel Agilex® 7 (FPGA_SGPIO_SYNC/FPGA_SGPO/FPGA_SGPIO_CLK/FPGA_SGPI).

System Intel® MAX® 10 as SPI Master to communicate with Intel Agilex® 7 (MAX10_SPI_SCLK/CSN/MOSI/MISO).

Intel Agilex® 7 as SPI Master to communicate with System Intel® MAX® 10 (FPGA_SPI_SCLK/CSN/MOSI/MISO).

Table 23.  I2C Debug Headers
Schematic Signal Name Description
PMB_SCL/SDA VRs I2C header J41
CLK_I2C_SDA/SCL_3V3 System Intel® MAX® 10 Clock I2C bus header J140 (ES board) or J42 (production board)
IVSNS_I2C_SDA /SCL Current sensor J149
T_SNS_SCL/SDA Temperature sensor I2C J79
Table 24.  SPI Headers
Schematic Signal Name Description

SI5518_I2C_SCL_SCLK/SI5518_GPIO3_SDO/

SI5518_I2C_SDA_SDIO/SI5518_A0_CSB

SI5518 SPI Header J31
Figure 32. I2C Serial Bus