P&E Microcomputer Systems xPC56XXMB, Руководство пользователя, Страница: 16 / 37

12 xPC56XXMB User Manual
Mini-Module hardware manual for more details.
J9 – Buttons Driving Configuration
Selects whether the buttons drive logic high or drive logic low when pressed.
J40 – Buttons Idle Configuration
Selects whether the I/O pins are pulled logic high or pulled logic low. This
controls the defaultlogic level of the I/O pins when the buttons are not
Jumper Setting Effect
1+2 (default
on)
KEY1 connected to processor I/O pin
3+4 (default
on)
KEY2 connected to processor I/O pin
5+6 (default
on)
KEY3 connected to processor I/O pin
7+8 (default
on)
KEY4 connected to processor I/O pin
Jumper Setting Effect
1+2
When pressed, buttons will send logic high to the
connected I/O pin
2+3 (default)
When pressed, buttons will send logic low to the
connected I/O pin