3 FPGA Circuits
3.7 Key
DBUG398-1.1E
15(25)
3.6.2
Key Switch Circuit
Figure 3-5 Key Switch Circuit
SW4
68
SW5
69
SW6
79
SW7
80
VCCO2
U6
F_SW1
F_SW2
F_SW3
F_SW4
3.6.3
Pinout
Table 3-5 Clock Circuit Pinout
Signal Name
Pin No.
BANK
Description
I/O
F_SW1
68
2
Slide Switch1
3.3V, 2.5V, 1.2V
F_SW2
69
2
Slide Switch2
3.3V, 2.5V, 1.2V
F_SW3
79
1
Slide Switch3
3.3V, 2.5V
F_SW4
80
1
Slide Switch4
3.3V, 2.5V
Note!
The VCCO1 of GW1N-9 can only be supplied with 3.3V.
3.7
Key
3.7.1
Overview
Four key switches are embedded in the development board. Users
can manually input a low level to the corresponding FPGA pins for testing
purposes.