NXP Semiconductors EVB-VF522R3, Руководство пользователя, Страница: 11 / 38

EVB-VF522R3 Platform User’s Guide, Rev. 0, 11/2014
10 Freescale Semiconductor, Inc.
Power management scheme
Figure 9. On-board current-sense resistors
4.7.4 Measuring currents in other power rails
Numerous power rails have series “shorts” (e.g., SH15 in the MPU SDRAM controller power
rail)–exposed copper footprints consisting of two pads shorted with a trace. If required, the trace can be
cut and a current-sense resistor soldered onto the pads.
Refer to the EVB-VF522R3 Schematic for details.
4.7.5 Powering EVB peripherals
The power-routing options detailed in Section 4.6, “MCU supply routing ” only impact the voltage supply
to the MCU and not any of the EVB peripherals. Power domains used by the EVB peripherals are shown
in
Table 2 , which provides a reference to either disable a regulator or manually provide the voltage for that
power domain.
Table 2. EVB peripherals power
Power Domain Used On
12V MLB daughtercard connector
5V
Switch-Mode
CAN transceiver
Board-to-Board MAC (Ethernet) connector
USB circuitry
DCU daughtercard connector
Radio Tuner daughtercard connector
Generic CD connector
LCD connector (header)