NXP Semiconductors S32R274 - Page 16

Configuration – Daughter card
S32R274/372 EVB User Guide, Rev. 0, 08/2018
16 NXP Semiconductors
Figure 13. Daughter card power distribution
The connection of any power domain to a regulator has to be enabled by a dedicated jumper as described
in the table below.
Table 8. MCU power selection jumpers
Jumper
Description
J5
Connects Digital HV supplies to 3.3V_SR
J2
Connects Digital LV supplies to 1.25V_SR
J7
Connects AFE Supply to 3.3V_LR via LDO
J3
Connects AFE Supply to 3.3V_SR via LDO
MCU Power
5 V
Switcher
3.3 V
Switcher
1.25 V
Switcher
5 V Linear
VBat
All LV Supplies
in External
Mode only
All Other Digital
HV Supplies
VDD_HV_REG3V8
VDD_HV_DAC
VDD_HV_RAW
LDO
From Mother Board
(Default Connection)
LDO
VDD_HV_ADCREF0/2
3V3_LR
LDO
3V3_LR
3V3_SR
3V3_SR
1V25
5 V
3.3 V
1.25V
From Daughter Card
J2
J5
J3
J7