NXP Semiconductors S32R274 - 3.6. Ethernet configuration

Configuration
S32R274/372 EVB User Guide, Rev. 0, 08/2018
12 NXP Semiconductors
By default the FlexRAY interface is not enabled. To enable the FlexRAY interface the jumpers detailed
in Table 6 need to be placed.
Table 6. FlexRAY control jumpers
Jumper
Label
Description
J29
FR_PWR
FlexRay transceiver VIO selection
1-2: 12 V to V
BAT
3-4: 5V_SR to V
CC
and V
BUF
5-6: 3.3V_SR to V
IO
J27
FR_A
1-2: PHY U4 TX to MCU
3-4: PHY U4 TXEN to MCU
5-6: PHY U4 RX to MCU
J28
FR_A
PHY U4 configuration:
1-2: 3.3 V (V
IO
) to BGE
3-4: 3.3 V (V
IO
) to EN
5-6: 3.3 V (V
IO
) to STBY
7-8: GND to WAKE
J30
FR_B
1-2: PHY U5 TX to MCU
3-4: PHY U5 TXEN to MCU
5-6: PHY U5 RX to MCU
J31
FR_B
PHY U5 configuration:
1-2: 3.3 V (V
IO
) to BGE
3-4: 3.3 V (V
IO
) to EN
5-6: 3.3 V (V
IO
) to STBY
7-8: GND to WAKE
3.6. Ethernet configuration
The EVB is fitted with a standard RJ45 Ethernet connector (J7) and a DP83848C 10/100 Ethernet
transceiver (U6). This is however not used in conjunction with the S32R274RRUEVB daughter card
since it is fitted with its own Gb Ethernet physical interface and RJ45 connector. Refer to section 4 for
details.
3.7. Motherboard
A number of test points of different shape and functionality is scattered around the EVB to allow easy
access to MCU and reference signals. This section summarizes and describes the available test points.
Motherboard test points are listed and detailed in the table below.
Table 7. Test points - motherboard
Signal
TP name
Shape
Description
GND
GT1
Hook
Ground reference