NXP Semiconductors S32R274 EVB, Руководство пользователя, Страница: 12 / 39

S32R274 EVB User Guide
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Jumper Label Description
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: 3.3V (V
IO
) to BGE
3-4: 3.3V (V
IO
) to EN
5-6: 3.3V (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: 3.3V (V
IO
) to BGE
3-4: 3.3V (V
IO
) to EN
5-6: 3.3V (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. Please see 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 chapter summarizes and describes the available test points.
Motherboard test points are listed and detailed in Table 7.
Table 7. Test points - motherboard
Signal TP name Shape Description
GND GT1 Hook Ground reference
GND GT2 Hook Ground reference
GND GT3 Hook Ground reference
GND
GT4 Hook
Ground reference
GND GT5 Hook Ground reference
GND GT6 Hook Ground reference
GND GT7 Hook Ground reference
GND GT8 Hook Ground reference
GND GT9 Hook Ground reference
GND GT10 Hook Ground reference