Seiko Epson S5U1C17W23T, Manual

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2. Name and Function of Each Part
6 Seiko Epson Corporation
S5U1C17W23T Manual
(Rev.1.1)
2.2 Function of Each Part
2.2.1 Jumper Switch Functions
Table 2.2.1 List of jumper switch functions
Name Type Function Factory
settings
Selectable
settings
JP1 Soldering Connecting the extension connector for port P14 Shorted Open
JP2 Soldering Connecting the extension connector for port P13 Shorted Open
JP3 Pin Measuring the current consumption for the
S1C17W23 (V
DD
)
*1
Shorted Open
JP4 Pin Measuring the current consumption for the
S1C17W23 (V
SS
)
*1
Shorted Open
JP5 Pin Selecting the operational power supply BAT (battery) EXT(external
power supply)
JP6 to JP9 Soldering Selecting the specifications for ports P00 to P03
*2
RF converter (ch0), I/O port
Shorted
(I/Oport)
Open (RFC)
JP10 to
JP13 Soldering Selecting the specifications for ports P17 to P22
*2
RF converter (ch1), I/O port
Shorted
(I/Oport)
Open (RFC)
*1
To measure the current consumption for the S1C17W23 alone, insert an ammeter between these jumper
switches to measure the current.
*2
Remove solder when operating the RF converter by mounting a thermistor (or another resistor type) on this
board.