4. Jumper Pins
4
EPSON
S1R72V18 Evaluation Board Manual
(Rev.1.01)
4. Jumper Pins
The jumpers on the board are set as shown below. Items shaded in gray are factory default settings.
JP4 to JP15 are soldered jumpers and normally do not require alteration.
No. Details
Setting
(Details in gray are factory default settings.)
1-2
CN1: A4,B4,A5,B5 = +5V
JP1
+5 V output selection from CN1 to Main CPU
2-3
CN1: A4,B4,A5,B5 = 0V
1-2:
IOVDD = 3.3V
JP2
Interface power supply voltage selection with
Main CPU
2-3:
IOVDD = 1.8V
1-2:
MAX8586-ENRESET pin = High
JP4
MAX8586 (IC2) automatic restart function
selection
(See Maxim data sheet for details.)
1-3:
MAX8586-ENRESET pin = Low
1-2:
MAX8586-ENRESET pin = High
JP5
MAX8586 (IC3) automatic restart function
selection
(See Maxim data sheet for details.)
1-3:
MAX8586-ENRESET pin = Low
1-2:
Located at MAX8586(IC3)-OUT pin
JP6
USB Port1 host VBUS output 122[µF] layout
selection
1-3:
Located at MAX8586(IC3)-IN pin
Short
Normal
JP7-JP9
JP11-JP12
Current consumption measurement jumper
(Normally use shorted)
Open Not
permited
Short
With discharge resistor
JP10
USB Port1 host VBUS output 122[µF]
capacitor discharge resistor selection
Open
Without discharge resistor
Short
Uses CN2 as USB port 0 device/host
JP13
CN2 USB port function selection
Open
Uses CN2 as USB port 0 device
1-2:
Located at MAX8586(IC2)-OUT pin
JP14
USB Port0 host VBUS output 122[µF] layout
selection
1-3:
Located at MAX8586(IC2)-IN pin
Short
With discharge resistor
JP15
USB Port0 host VBUS output 122[µF]
capacitor discharge resistor selection
Open
Without discharge resistor
Note: JP3 does not exist.
