17
ROM-DB3900 User Manual
Chapter 2
H
/W Installation
Table 2.26: JP2208 (GPIO/Keypad selection for GPIO7/17)
Pin
Signal
1-2
GPIO7
2-3
GPIO17
Table 2.27: JP2208 (GPIO8)
Pin
Signal
1-2
GPIO8
2-3
-
Table 2.28: JP22 (GPIO9)
Pin
Signal
1-2
GPIO9
2-3
-
Table 2.29: JP1801~JP1804, JP1901~JP1904 (UART 120om terminal
resister)
Pin
Signal
1-2
120 OM (Default)
2-3
Without 120 OM