3 Development Board Circuit
3.7 Key
DBUG405-1.0E
15(25)
3.7
Key
3.7.1
Overview
Two key switches are embedded in the development board. Users can
manually input the 0/1 signal to the corresponding FPGA pins for testing
purposes. Press the key to input 0; Input 1 when the key is up.
3.7.2
Key Circuit
Figure 3-6 Key Circuit
129
130
KEY1
KEY2
U9
F_KEY1
F_KEY2
VCC3P3
GW2AR-
LV18EQ144PC8I7
3.7.3
Pinout
Table 3-6 Key Pinout
Signal Name
Pin No.
BANK
Description
I/O
F_KEY1
129
0
KEY1
3.3V
F_KEY2
130
0
KEY2
3.3V
3.8
GPIO
3.8.1
Overview
Two 2.54mm DC3-10P sockets, one 2.54mm DC3-20P socket, and
one 2.54mm DC3-26P socket are reserved on the development board for
user function extension and testing purposes.
