Cxl Interface - Intel Agilex F Series User Manual

A. Development Kit Components
739942 | 2022.09.21
A.5.4. CXL Interface
The Intel Agilex FPGA (two F-tiles) development board provides a CXL connector
interface for cabling to an Intel-designed M.2 SSD daughter card supporting M-Keying.
This interface connects to four 28 Gbps F-tile lanes of the Intel Agilex FPGA. When
connecting the development board to this SSD daughter card, the development board
connects four transceiver channels from the F-tile bank 12C to M2 channels 8-11 (J5)
of the M.2 daughter card.
Table 32. CXL Pin Assignments
Schematic Signal Name
CXL_TX_P0
CXL_TX_N0
CXL_TX_P1
CXL_TX_N1
CXL_TX_P2
CXL_TX_N2
CXL_TX_P3
CXL_TX_N3
CXL_RX_P0
CXL_RX_N0
CXL_RX_P1
CXL_RX_N1
CXL_RX_P2
CXL_RX_N2
CXL_RX_P3
CXL_RX_N3
REFCLK_CXL_EP_P
REFCLK_CXL_EP_N
REFCLK_CXL_CONN_P
REFCLK_CLK_CONN_N
Send Feedback
FPGA Pin Number
BW49 True Differential Signaling
BY48 True Differential Signaling
BV52 True Differential Signaling
BU51 True Differential Signaling
BR49 True Differential Signaling
BT48 True Differential Signaling
BP52 True Differential Signaling
BN51 True Differential Signaling
CC55 True Differential Signaling
CD54 True Differential Signaling
CB52 True Differential Signaling
CA51 True Differential Signaling
BW55 True Differential Signaling
BY54 True Differential Signaling
BR55 True Differential Signaling
BT54 True Differential Signaling
BC49 100 MHz LVPECL
BE49 100 MHz LVPECL
BG49 100 MHz LVPECL
BF48 100 MHz LVPECL
®
Intel
I/O Standard
CXL Transmit Channel 0 Positive
CXL Transmit Channel 0 Negative
CXL Transmit Channel 1 Positive
CXL Transmit Channel 1 Negative
CXL Transmit Channel 2 Positive
CXL Transmit Channel 2 Negative
CXL Transmit Channel 3 Positive
CXL Transmit Channel 3 Negative
CXL Receive Channel 0
Positive
CXL Receive Channel 0 Negative
CXL Receive Channel 1
Positive
CXL Receive Channel 1 Negative
CXL Receive Channel 2
Positive
CXL Receive Channel 2 Negative
CXL Receive Channel 3
Positive
CXL Receive Channel 3 Negative
CXL Reference Clock
Positive, Local board clock
CXL Reference Clock
Negative, Local board clock
CXL Reference Clock
Positive, Remote board clock
CXL Reference Clock
™
Agilex F-Series FPGA (Two F-Tiles) Development Kit User Guide
Description
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