2. Connector Connections
2
EPSON
S1R72V18 Evaluation Board Manual
(Rev.1.01)
2. Connector Connections
This board features the connectors listed below:
Connector No.
Use
CN1
For connecting to the Main CPU system
CN2
USB Port0 connector (mini B type)
CN3
USB Port0 connector (standard A type)
CN4
USB Port1 connector (standard A type)
CN5
Power supply connector
CN1
Connect this board to the Main CPU system via the CN1 connector.
CN5
Connect the power supply to the board via the CN5 connector as shown below. Do not connect the power
supply until the board has been connected to the Main CPU and various settings (explained later) have been
completed.
1pin
+5V
2pin
0V
3pin
N.C.
4pin
N.C.
CN2
Used when CN2 is used as a USB device port (USB Port0).
CN3
Used when CN3 is used as a USB host port (USB Port0).
CN4
Used when CN4 is used as a USB host port (USB Port1).
Precautions when using CN2 and CN3 (USB Port0)
The signals for CN2 and CN3 are connected through the board, since USB Port0 is used as both a USB
device port and USB host port. USB communication functions may not operate correctly due to signal
reflections when USB cables or USB devices are connected to the unused CN2 or CN3 connector.
Disconnect the USB cable from CN2 when using this board as a host with CN3. Likewise, disconnect the
USB device or cable from CN3 when using the board as a device with CN2.
