Infineon TriBoard TC3X7 - Ethernet and HSCT Connectivity Options

User Manual 3-5 V1.2
TriBoard TC3X7 TH V1.0 and TriBoard TC3X7 V1.0 2016-08
TriBoard Manual TC3X7
Hardware: TriBoard TC3X7 TH V1.0 and TriBoard TC3X7 V1.0
TriBoard Information
3.9 Ethernet
The TriBoard provide a RJ45 connector (X306) for twisted pair ethernet connections.The TriBoard use a Lantiq
Giagabit PHY PEF7071 as physical interface device. For more information about the ethernet modul see TC3X7
User’s Manual, about the PHY see the PEF7071 datasheet. For the pinout of RJ45 see Figure 6-9.
The PHY is connected to the TriCore device via resistors and resistor arrays (R370 up to R377 and RN301 up to
RN302) which must be removed to use the ports outside.
For the connection between TriCore and PHY can be used RMII (default).
Please note that the RGMII interface can’t be used also if the TriCore device is able to have a RGMII connection.
Therefore Gigabit is not usable with this board only 10M and 100M.
Note: Please note that the PHY is always waked up in RGMII mode and must be reprogrammed to RMII if
needed via MDC and MDIO (P12.0 and P12.1). In the case that you need that the PHY wakeup in RMII then
replace R384 with 3K3 and R385 with 5K1.
3.10 HSCT (optional)
The TriBoard provide a footprint of IEEE 1394 socket (X201) for connection to other TC3XX via HSCT.
Note: Don’t use X201 for connection to any IEEE 1394 device,
this can destroy the board and/or the connected device.
For connect two TriBoards you need to assemble this socket (Lumberg 2415 01) on each board and connect the
boards with a standard 6 pin IEEE 1394 cable. For the pinout of socket see Figure 6-8.
3.10.1 High speed with HSCT
For use the HSCT connection between two board you need to remove 5 resistors to have a very short connection
between device and connector. On the TC3X7 Triboard this 5 resistors are R250, R251, R252, R253 and R254 (red
marked in Figure 3-3). This resistors needs to be removed.
mportant: When the resistors are removed then the port signals P20.0, P21.2, P21.3, P21.4 and P21.5 are no
longer available on the 80 pin samtec connectors.