The EVK1105 provides one integrated Media Access Control (MAC) Interface to interface an external PHY National Semiconductor DP83848I. The EVK1105 Ethernet interface has a RJ45 Ethernet connector with integrated magnetics.
The documentation to the external PHY is available on Texas Instruments web site. Refer to application notes part for more details and advise regarding specific layout for this component.
Pinout
The MAC Interface is connected with external PHY following RMII specification. The MAC Interface follows the pinout:
| PHY Interface pin number | UC3A GPIO Name | Alternate function used |
|---|---|---|
| 2 | PB01 | TXEN |
| 3 | PB02 | TX0 |
| 4 | PB03 | TX1 |
| 43 | PB05 | RX0 |
| 44 | PB06 | RX1 |
| 41 | PB07 | RXER |
| 31 | PB08 | MDC |
| 30 | PB09 | MDIO |
| 40 | PB15 | RXDV |
| 7 | PA26 | EXTINT_3 |
| 34 | PB00 | TXCLK |