Hard Processor System Technical Reference Manual: Agilex™ 3 SoCs

ID 848530
Date 6/23/2025
Public
Document Table of Contents

5.8.5.2. FPGA Routing

The following figure shows the I3C controller FPGA routing interface signal.

Figure 184. I3C FPGA Routing Interface Signal

The following table shows the I3C controller FPGA routing interface.

Table 250.  I3C Controller FPGA Routing Interface
Signal Name Signal Width Direction Description
I3C<#>_sda_pullup_en 1 Out

SDA Open-Drain Pull-Up Signal

Only applicable in master mode of operation. This signal enables the pull-up resistor or equivalent current source in open-drain mode when the controller requires to drive '1' on the SDA line.

I3C<#>_sda_out 1 Out

SDA Output Signal

This signal is an input to the SDA pad driver.

I3C<#>_sda_oe 1 Out

Outgoing SDA Pad Enable

This signal is used to enable the pad to switch between OD(0) and PP(1) mode.

I3C<#>_sda_in_a 1 In

Incoming SDA

Input SDA signal from the SDA pad driver.

I3C<#>_scl_pullup_en 1 Out

SCL Open-Drain Pull-Up Signal

Applicable only in master mode of operation. This signal enables the pull-up resistor or equivalent current source in open-drain mode when the controller requires to drive '1' on the SCL line.

I3C<#>_scl_out 1 Out

SCL Output Signal

This signal is an input to the SCL pad driver.

I3C<#>_scl_oe 1 Out

Outgoing SCL Pad Enable

This signal is used to enable the pad to switch between OD (0) and PP(1) mode.

I3C<#>_scl_in_a 1 In

Incoming SCL

Input SCL Signal from the SCL pad driver.