Figure 3 Powering Options; Figure 4 Block Diagram Of Power Supply; Table 1 Power Status Led's - Infineon CPU-42A-V1 Manual

USB
IFX1763
3.3V linear
LDO Voltage
Regulator
PowerScale
Probe
Figure 3 Powering Options
To indicate the power status of the CPU_42A-V1 board three power indication LED's are provided on board
(see Figure 3). The LED will be "ON" when the corresponding power rail is powered.
Power status LED's
Table 1
LED Reference Power Rail
V401 VDD5
V402 VDD5USB
V403 VDD3.3
USB
Power
LED
VDD5USB +5V
Figure 4 Block Diagram Of Power Supply
Board User's Manual
Voltage
5 V
5 V
3.3 V
Debug
USB
Power
LED
VDD5 +5V
U401
Lin. Voltage
Regulator
IFX1763
ACT Sat.
Connector
CPU Board XMC4200 Actuator
Note
Must always be "ON"
"ON" if powered by USB connector X203
"OFF" in all other supply cases
Must always be "ON"
Power
LED
VDD3.3 +3.3V
JP300
VDD3.3
BATTERY
10
CPU_42A-V1
Hardware Description
Debug USB
Power
indicating
LEDs
Power.emf
CPU Board XMC4200 Actuator
CPU_42A-V1
VDD3.3
On Board Devices
U300
VDDP
XMC4200
QFN48
VBAT
Power_Block.emf
Revision 1.0, 2013-02-19