2. Name and Function of Each Part
4
Seiko Epson Corporation
S5U1C17W23T Manual
(Rev.1.1)
Table 1.1 List of jumper switch settings in each mode
Switch No.
Function
Debugging the
software with an
external power
supply
Performing a
free run
operation with an
external power
supply
Performing a
free run
operation with
a button battery
JP5
Operational power
supply selection
EXT
EXT
BAT
2. Name and Function of Each Part
2.1 Name of Each Part
The following figures show the name and function of each part.
Figure 2.1 Name of each part on the front surface of the S5U1C17W23T
LCD Panel (J2)
Extension connector header
(J1)
RFconvertor solder
jumper switches
(JP10-13)
RFconvertor solder jumper
switches (JP6-9)
Buzzer (BZ1)
RFconvertor parts area (ch0)
RFconvertor parts
area (ch1)
Power selection
jumper switch (JP5)
Tact switches
(SW1, SW2,
SW3 and SW4)
Reset switch
(SW5)
External power supply
connector header CN3
(J4)
GND terminal (TP3)
V
DD
terminal (TP2)
Jumper switch for
current consumption
measurement (JP3,4)
Crystal
oscillator
(X2)
32768Hz
S1C17W23 (U1)
VPP terminal (TP1)
For ceramic
oscillator
parts aera (X1)
