Hello,
1. should I use RGMII external delay by PHY or PCB lines for AM437x?
2. There are two statement 2a and 2b see below.
2a. SPRUHL7F 15.3.6.4 RGMII Transmit (TX)
"The RGMII0/1_ID_MODE bit value in the GMII_SEL register should only be set to 1 for 'no internal delay'.
The device does not support internal delay mode for RGMII."
2b. SPRS851D 5.13.7.1.4 Ethernet MAC and Switch RGMII Electrical Data and Timing
"A. The Ethernet MAC and switch implemented in the device supports internal TX delay mode."
Which statement is correct?
Thank you.
