CEB-V850ES/FJ3·SJ3 Evaluation Board HardwareUser’s Manual
19
3.3.11 USB
(1) USB
overview
USB connection with a personal computer is made using the UART interface of CPU.
USB-UART interface device FT232R is mounted and USB is changed into UART.
The USB section block diagram is shown below.
FJ3/SJ3 USB connection
P30/TXD0
P31/RXD0
V850FJ3/SJ3
FT232R
1k
Ω
C-POW
RXD
TXD
/RTS
/CTS
VBUS
USBP
USBN
GND
miniB
USBN
USBP
VBUS
FP4-TXD
FP4-RXD
VCC
+5V
Supplement : Power supply
+12V IN
5/3.3
reg
C-POW
USB
miniB
VBUS
+5V
RFJ
RSJ
Max500mA
P69
/VBUSEN
VBUS
C-POW
VCCIO
C-POW
12/5
reg
+12V
JP8
1
3
2
Figure 3.3.11(1)