Usb Interface - Renesas RZ/A Series User Manual

RZ/A2M CPU Board RTK7921053C00000BE
2.4

USB Interface

USB Type-C receptacle x 1 is equipped with RTK7921053C00000BE as a default installation.
When using this receptacle as a USB host, attach JP3 because the VBUS voltage is supplied to the USB connector.
When using this receptacle as a USB function, detach JP3.
Moreover, USB port setting can be changed by the CC logic controller (U7) PORT terminal settings. Initial USB port
settings are for DRP (Dual Role Port). If using as a USB host, mount R78 resistor and set USB port to DFP (Downstream
Facing Port). If using for USB function, mount R79 resistor and set USB port to UFP (Upstream Facing Port).
Figure 2.4.1 shows USB interface block diagram, Table 2.4.1 shows jumper JP3 function setting table, Table 2.4.2
shows port L function switching table, and Table 2.4.3 shows USB port function switching table.
RZ/A2M (U1)
USB_X1 P5_2 / VBUSIN0
USB_X2
48MHz
(X2)
PC_6 / VBUSEN0
3.3V
PC_7 / OVRCUR0
3.3V
USBDPVcc PD_4 / RIIC2SCL
USBAPVcc PD_5 / RIIC2SDA
RREF0 PL_3 /
2.2kΩ
USBVss PL_2 /
PD_0
(IRQ input # / system settings)
Note: Red characters indicate
functions in use.
: Unmounted.
Figure 2.4.1 USB Interface Block Diagram
R20UT4397EJ0100 Rev.1.00
2018.10.11
VBUS
10
VBUS0
DP0
DP0
DM0
DM0
3.3V
EN0
OC0#
SCL2
SDA2
INT#
IRQ7
ID#
IRQ6
PD_0
VBUS power source control IC (U5)
150μF
VBUS0
OUT1
+
OUT2
OUT3
EN0
EN
OC0#
OC#
USB Type-C receptacle (CN3)
VBUS0
VBUS_A
VBUS_B
DP0
D+_A
D+_B
DM0
D-_A
D-_B
VBUS0
SCL2
SDA2
IRQ input
/ system settings
(U6)
3B1
ID#
3A
3B2
4B1
INT#
4A
4B2
OE# MUX S
L:A=B1, H:A=B2
PD_0
2. Function specifications
5V
IN1
IN2
CC1
CC2
CC logic controller (U7)
VBUS_DET
SCL / OUT2
3.3V
SDA / OUT1
3.3V
ID
INT# / OUT3
ADDR
3.3V
EN#
R78
Low
PORT
H=DFP, NC=DRP, L=UFP
3.3V
R79
CC2
CC1
2-19