Chapter 4 Technical Description
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EPSON
S5U13719P00C100 Evaluation Board User Manual (Rev. 1.1)
Chapter 4 Technical Description
4.1 Power
4.1.1 Power Requirements
The S5U13719P00C100 evaluation board requires an external regulated power supply (3.3V at 1A). The power is
supplied to the evaluation board through pin 5 of the P2 header, or pin 29 of the H1 header.
The green LED ‘3.3V Power’ is turned on when 3.3V power is applied to the board.
4.1.2 Voltage Regulators
The S5U13719P00C100 evaluation board has on-board linear regulators to provide the different voltage required by
the S1D13719 Mobile Graphics Engine. It also has a step-up switching voltage regulator to generate adjustable
12~25V, which can be used to power the LED backlight on some LCD panels.
4.1.3 S1D13719 Power
The S1D13719 Mobile Graphics Engine requires 1.8V and 2.5V or 3.0V power supplies.
COREVDD and PLLVDD use 1.8V power, which is provided by an on-board linear voltage regulator.
HIOVDD power can be selected with jumper JP5. When JP5 is set to the 2-3 position, HIOVDD is connected to
3.3V. If a different voltage is required for HIOVDD, set JP5 to the 1-2 position and connect the external power
supply to pin 32 of connector H1.
PIOVDD power can be selected with jumper JP6. When JP6 is set to the 2-3 position, PIOVDD is connected to 3.3V.
If a different voltage is needed for PIOVDD because of the LCD panel requirements, set JP6 to the 1-2 position and
connect the external power supply to pin 1 of connector H6.
CIO1VDD is connected to 2.7V, which is provided by an on-board linear regulator, through a 0 ohm resistor, R9. If
it is desired to have a different voltage for CIO1VDD, R9 must be removed and the desired supply connected to pin
15 of connector H3.
CIO2VDD is connected to 2.7V, which is provided by an on-board linear regulator, through a 0 ohm resistor, R10.
If it is desired to have a different voltage for CIO1VDD, R10 must be removed and the desired supply connected to
pin 15 of connector H7.
SIOVDD is connected to PIOVDD through a 0 ohm resistor, R11. If it is desired to have a different voltage for
SIOVDD, R11 must be removed and the desired supply connected to pin 4 of connector J1.
