NXP Semiconductors
S32K3X4EVB-Q257 | S32K3X4EVBQ257ND
HWUM
Hardware User Manual
S32K3X4EVB-Q257 HWUM
All Information provided in this document is subject to legal disclaimers
© NXP B.V. 2020. All rights reserved
NXP Semiconductors
REV B
– 9/2021
Page
15
of
36
2-3
The shunt resistor R75 [1 Ohms] is selected for current
measurement proposals on the VDD_HV_B_MCU
reference
Default closed
OPEN
The shunt resistors R74 and R75 are disabled for current
measurement proposals on the VDD_HV_B_MCU
reference
J31
1-2
VDD_HV_B is routed to VDD_HV_B_MCU reference. A
jumper on this position disables the shunt resistors R74
and R75 are disabled for current measurement
proposals.
Default closed
OPEN
This jumper allows a differential measurement to the
shunt resistor in series for the VDD_HV_B_MCU domain.
7.5.2 S32K3X4EVB-Q257
– VREFH
Figure 10. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND
– VREFH power supply
Table 8. S32K3X4EVB-Q257
– VREFH
Reference
Jumper Position
Description
Comments
J410
1-2
The VREFH_MCU reference is routed to
the VDD_HV_A_MCU domain.
Default closed
2-3
The VREFH_MCU reference is routed to
the FS26_VREF output domain [+5.0V].
VREH_MCU should not be
connected to a higher voltage
than VDD_HV_A, therefore
J410[1-2] can be placed only
when J23[1-2]
OPEN
The VREFH_MCU is floated/unpowered
VDD_HV_A_MCU
TP264
1
FS26_VREF
VDD_REFH
J410
HDR 1X3
SILK = VREFH_MCU
JUMPER(Default) = 1-2 Closed
1
2
3