The RMII specification has been optimized for use in high port density interconnect devices which require independent treatment of the data paths. The primary motivator is a switch ASIC which requires independent data streams between the MAC and PHY.
Differences between RMII and MII. - NXP Community
2014年7月11日 · In RMII mode the clock must be 50MHz and use the exact same signal for both the PHY and the Kinetis. The FRDM-K64F has this automatcially but in the tower kit you need to be sure that the jumpers on the K60 board and the serial board are correct.
[SOLVED] - How to tell the differece between MII & RMII interface?
2007年10月30日 · Can any one tell me the differece between MII & RMII interface.... or what is MII & RMII ? n how to use those interfaces for ethernet PHY inteface thanks Anuja
Solved: i.MX8MM RMII reference clock - NXP Community
2019年6月5日 · Solved: Hello, NXP team. We have a custom board based on i.MX8MM, ethernet PHY LAN8720 with RMII connected as on imx8mm_val (TARGET_IMX8MM_DDR3L_VAL)
Solved: S32K344 RMII Debugging - NXP Community
2024年3月14日 · Hi, I'm debugging an issue with the S32K344 on the RMII interface on a custom board. The S32K344 is setup as the MAC and is connected to a switch port that is acting like a PHY. The switch port is providing the 50MHz reference clock to the S32K344. There seems to be some kind of data corruptio...
Solved: STM32H7 RMII timing - STMicroelectronics Community
2019年12月18日 · Hello, We are using STM32H743ZIT6 revision V. This is connected to an ethernet PHY device via RMII. The PHY outputs the 50MHz RMII REFCLK to drive the RMII on the STM. According to the following sources, the RMII TX data lines (TXD0 and TXD1) should be sampled by the PHY on the rising edge of the RE...
S32K344 RMII Problem with GMAC driver - NXP Community
2025年1月30日 · Hello, I am working with the S32K344 MCU and using the LAN8710A Ethernet PHY in RMII mode. My goal is to transmit data from the MCU to a PC, but I am facing issues in the process. Setup and Observations: I can access the LAN8710A registers via MDIO. I have verified that the STRAP pins are correctly...
Solved: RMII clock for S32K3 - NXP Community
2025年2月28日 · Hi! I'm designing an Ethernet interface (RMII) with S32K3 and Microchip phy and I wonder about the clocks and the directions. Based on S32K3 reference manual, page 3299, we have this two statements: MII_RMII_TXCLK (Clock): Input MII: The external PHY provides this transmission clock, which operate...
Solved: STM32H573VITxQ RMII interface - STMicroelectronics
2024年7月1日 · I'm planning to build a low-power Ethernet project using the STM32H573VI microcontroller. I need to use an SMPS to lower power consumption because of that reason i choose that MCU. During createation of project, I noticed that STM32CubeMX offers RMII interface configuration, but I've found that RMII...
STM32H573ZI RMII_PTP_Synchro - STMicroelectronics Community
2024年10月2日 · I had some issues configuring H573 with CubeMX. When I configure TIM2 or TIM3 according to the instructions of RMII_PTP_Synchro in CubeMX I cannot enable the RMII PTP functionality. And when looking at RM0481 it seems that the description of the relationship between these two timers and ETH MAC ...