2. Name and Function of Each Part
S5U1C17589T21 Manual
Seiko Epson Corporation
5
(Rev. 1.0)
2.2 Function of Each Part
2.2.1 Functions of Jumper Switches
Table 2.2.1.1 List of Jumper Switch Functions
Name
Function
Factory setting
Optional setting
JP1
S1C17589 current consumption
measurement (AV
DD
)
1
Short-circuited
Open
JP2
S1C17589 current consumption
measurement (HV
DD
)
*1
Short-circuited
Open
JP3
External power supply monitor at
EXSVD pin
Pins 1 and 2
short-circuited
• Pins 1 and 2 short-circuited
The EXSVD pin is connected to the V
DD
voltage.
• Pins 1 and 2 short-circuited
The EXSVD pin is connected to TP8 to
monitor the external voltage.
1 To measure current consumption of the S1C17589 alone, insert an ammeter between the jumper switches.
2.2.2 Function of Each Part
Table 2.2.2.1 List of Parts and Functions
Part name
Location
Function
IC
U1
S1C17589 (16-bit MCU)
Connector headers
J1–J4
Extension interface connector headers (foot pattern only)
Connectors
J6, J7
Debug interface connectors (for connecting with S5U1C17001H)
Connectors
J5, J8
External power supply connectors
Switch
SW1
Reset input
Jumper
JP1
Jumper for AV
DD
current measurement
Jumper
JP2
Jumper for HV
DD
current measurement
Jumper
JP3
Jumper for switching voltage to be monitored at the EXSVD pin
Monitor pin
TP1 (AVDD2)
Through hole for AV
DD2
Monitor pin
TP2 (AVDD)
Through hole for AV
DD
Monitor pin
TP3 (VPP)
Through hole for V
PP
(Flash programming power supply)
Monitor pin
TP4,TP7 (GND)
Through hole for GND
Monitor pin
TP5, TP9 (HVDD2) Through hole for HV
DD2
Monitor pin
TP6 (HVDD)
Through hole for HV
DD
Monitor pin
TP8 (EXSVD)
Through hole for inputting an external voltage to be monitored
Crystal resonator
X1
16 MHz
Crystal resonator
X2
32.768 kHz
