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3.2
Jumper setting
The S5U13781R00C100 reference board includes jumpers which control the functions described in Table
3-2, Jumper settings. For jumper locations on the reference board, see Figure 3-1, Jumper Pin Locations.
Function
Power supply for FLASH memory
CNF/RESET setting
Setting for back light LED regulator
Power supply for VDDIO /
VDDDCDC
On board OSC setting
On board OSC input
J3
J4
S5U13781R00C100 Reference Board User Manual
Revision 1.0
Table 3-2 Jumper Settings
Jumper
Settings
J1
1-2
Supply VDDIO to U2(FLASH-VCC)
2
External power supply to U2（FLASH-VCC）
3
GND
J2
1-2
CNF0
3-4
CNF1
5-6
CNF2
7-8
RESET
J3
1-2
Short:
3-4
Short:
5-6
7-8
J4
3
External power supply to VDDIO
4
External power supply to VDDDCDC
J6
1-2
Short: Disable on board OSC
J7
1
External clock input in case of OSC disable
Figure 3-1 Jumper Pin Locations
Seiko Epson Corporation
Description
Short:
CNF0=0, Open: CNF0=1
Short:
CNF1=0, Open: CNF1=1
Short:
CNF2=0, Open: CNF2=1
Short:
RESET=0, Open: RESET=1
Enables regulator
Regulator output current +20mA
Regulator output current +20mA
Regulator output current +20mA
J2
J6
J1
Issue Date: 2012/03/26
X94A-G-004-01
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