HI Team,
we are in phase to design in the DP83867IS and have some questions regarding straps.
We would like not to use any straps.
We are using it in RGMII, with auto-negotiation ON at 1Gbps speed.
1) Is it ok to use PHY_ADDRES = 0x0 and don't use any strap resistor on RX_D0 and RX_D2?
PHY_ADD0=0, PHY_ADD1=0, PHY_ADD2=0, PHY_ADD3=0
2) Do we have to strap RX_CTRL pin to MODE3, or can we do this by MDIO interface after reset?
3) GPIO_0, GPIO_1, LED_2, LED_1
-> Can we change RGMII CLOCK SKEW TX and RX via registers or it is only possible via straps?
-> ANEG_SEL =0 default is ok for us to advertise ability of 10/100/1000
4) LED_0 strap, because we work in RGMII mode, and RGMII mode is default mode we don't have to use the LED-0 strap is this right?
And the Mirror Enable can be changed via registers?
Best Regards,
d.