Epson S5U13U11 User Manual page 10

S1D13U11 Display Controller
JP11, JP14, JP15 - Current Measurement of the On-board Power Supplies
JP11, JP14, JP15 can be used to measure the current consumption of on-board power supplies.
When the jumper is at position 1-2, normal operation is selected.
When no jumper is installed, the current consumption for each power supplies can be measured by connecting an
ammeter between pins 1 and 2 of the jumper.
The jumper associated with each power supply is as follows:
JP11 for external 3.3V power
JP14 for 3.3V regulator
JP15 for 1.8V regulator
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Figure 3-3: Configuration Jumper Locations (JP11, JP14, JP15)
EPSON S5U13U11 Evaluation Board User Manual (Rev. 1.1)