RZ/A2M CPU Board RTK7921053C00000BE
2. Function specifications
R20UT4397EJ0100 Rev.1.00
2-25
2018.10.11
2.9
Power Supply Configuration
The regulators in RTK7921053C00000BE generate voltages 3.3 V, 1.8 V, and 1.2 V from 5 V.
Figure 2.9.1 shows the power supply configuration block diagram.
Figure 2.9.1
Power Supply Configuration Block Diagram
5V to 3.3V
D1.8V
D1.2V
USB Type-C (CN3)
5V external power
source connector
(CN4)
5V to 1.8V
VBUS
PVcc
RZ/A2M (3.3V)
USBDPVcc
AVcc
LVDSAPVcc
USBAPVcc
RZ/A2M (1.8V)
MIPIAVcc18
Vcc
RZ/A2M (1.2V)
LVDSPLLVcc
PLLVcc
3.3 V peripheral device
5V to 1.2V
VBUS power
supply
Jumper (JP3)
A3.3V
USB Type-C (CN3)
JP1
D1.8V
D3.3V
ROMVcc
RZ/A2M (1.8V/3.3V)
PVcc_HO
PVcc_SPI
JP2
D1.8V
D3.3V
RAMVcc
Serial flash memory (U2)
HyperMCP (U3)
RZ/A2M (1.8V/3.3V)
RZ/A2M (1.8V/3.3V)
PVcc_SD0
D3.3V D1.8V
3.3V/1.8V
Power disconnect
(U4)
PVcc_SD1
D3.3V
D5V
To SUB board