3. Settings
S5U1C31D50T1 Manual
Seiko Epson Corporation
7
(Rev.2.0)
3.2 Power Supply
The power supply can be selected from among three sources shown below by setting the J12 jumper, T2 and T5
pins. Make sure of the jumper and the pins settings before using the S5U1C31D50T1 board.
•
External:
Power is supplied to J11 from an external power such as the stabilized power supply.
•
VBUS:
Power is supplied to CN1 from USB-VBUS.
•
Debug:
Power is supplied to CN3 from the debug probe (hardware debugging tool).
Table 3.2.1 Power Supply Switching
Connector:J12, Pins:T2/T5
Power Source
Selection
J12 Setting
T2/T5 Setting
Remarks
External(J11)
Short between pins 2 and 3
Open
DC +5 V
VBUS(CN1)
Short between pins 1 and 2
Open
DC +5 V
Debug(CN3)
Open all pins
Connect pin T2 to pin
T5 via a cable
DC +5 V
Figure 3.2.1 Layout of Jumpers for Power Supply Selecting
Jumper (J12) for
selecting power supply.
Pins(T2, T5) used to get
power from debug probe.
Connecter(CN3) for
connecting debug probe
via Bridge Board Ver.2..
micro USB
connector(CN1)
Connector(J11) for
supplying external power
T5
T2
Содержание S5U1C31D50T1
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