Change even page title here
Chapter 3 Jumpers and Switches
FMEMCU-UG-960031-13
- 22 -
© Fujitsu Semiconductor Europe GmbH
3.8 User Buttons SW1, SW2, SW3, SW4, SW5, SW6
(JP: 3, 4, 5, 6, 7)
Five
user push buttons (SW1-SW5) can be connected to the microcontroller.
JP3, 4, 5, 6, 7
Each push button can be connected separately.
Jumper
Setting
Description
JP3
(SW1)
Closed
Pin 119 (INT0/NMI) of the MCU is connected to “SW1”
Open
No connection to the microcontroller
JP4
(SW2)
Closed
Pin 16 (INT5) of the MCU is connected to “SW2”
Open
No connection to the microcontroller
JP5
(SW3)
Closed
Pin 20 (TIN1) of the MCU is connected to “SW3”
Open
No connection to the microcontroller
JP6
(SW4)
Closed
Pin 18 (IN0/TTG4/0) of the MCU is connected to “SW4”
Open
No connection to the microcontroller
JP7
(SW5)
Closed
Pin 19 (IN1/TTG5/1) of the MCU is connected to “SW5”
Open
No connection to the microcontroller
Table 3-8: User Push Buttons
Default: JP3, 4, 5, 6, 7 closed
By default, all push-buttons are connected to the microcontroller.
3.9 I
2
C pull-up resistor
(JP: 9, 10)
Two 10k pull-up resistors can be connected to the I
2
C signal line.
JP9, 10
10k pull-up resistors can be connected to SDA0 and SCL0
Jumper
Setting
Description
JP9
(SDA0)
Closed
A 10k pull-up resistor is connected to SDA0
Open
No pull-up resistor is connected to SDA0
JP10
(SCL0)
Closed
A 10k pull-up resistor is connected to SCL0
Open
No pull-up resistor is connected to SCL0
