Part Number: AM263P4
Other Parts Discussed in Thread: SYSCONFIG
Hi Expert,
We are evaluating Ethernet configuration options on AM263P4 using CPSW.
From the documentation, CPSW supports two external MAC ports (Port1 and Port2), and each port can select MII/RMII/RGMII interfaces. However, during SysConfig configuration, we observed that it is not possible to enable RMII mode on both CPSW ports simultaneously.
To better understand this behavior, could you please clarify the following:
1) Is dual RMII configuration on CPSW (RMII on both Port1 and Port2 at the same time) supported or validated by TI?
2) If not supported, is this limitation due to:
- pinmux constraints,
- RMII clocking architecture (REFCLK sharing),
- or other hardware restrictions?
3) Is the limitation observed in SysConfig an intentional restriction reflecting actual hardware constraints?
4) For implementing two RMII ports, what is TI’s recommended architecture on AM263P4?
- CPSW (1 port) + ICSSG (1 port)?
- Or other recommended configuration?
5) Alternatively, for dual-port Ethernet using CPSW, is RGMII considered the recommended interface?
Please confirm clearly whether dual RMII on CPSW is:
- Supported
- Not supported
- Not validated
This information is important for our architecture evaluation.
Thank you for your support.
