Using the System
24
3-8
Using the Expansion Headers
The DE2 Board provides users two 40-pin expansion headers. Each header
provides DC +5V (VCC5), DC +3.3V (VCC33), two GND pins for users to build
their own daughter cards using the DE2 expansion ports.
Figure 3.10 shows the related schematics. The pin assignment of the associated
interface is shown in Table 3.8.
Figure 3.10 Two 40-pin Expansion Headers
Signal Name
FPGA Pin No.
Description
GPIO_0[0]
PIN_D25
GPIO Connection 0[0]
GPIO_0[1]
PIN_J22
GPIO Connection 0[1]
GPIO_0[2]
PIN_E26
GPIO Connection 0[2]
GPIO_0[3]
PIN_E25
GPIO Connection 0[3]
GPIO_0[4]
PIN_F24
GPIO Connection 0[4]
GPIO_0[5]
PIN_F23
GPIO Connection 0[5]
GPIO_0[6]
PIN_J21
GPIO Connection 0[6]
GPIO_0[7]
PIN_J20
GPIO Connection 0[7]