Altera DE2-115 User Manual download pdf (Page 42)

Figure 4-13 HSMC VCCIO supply voltage setting header

Table 4-8 Jumper Settings for different I/O Standards

JP7 Jumper Settings

Supplied Voltage to VCCIO5 & VCCIO6

IO Voltage of HSMC Connector (JP8)

Short Pins 1 and 2 1.5V 1.5V

Short Pins 3 and 4 1.8V 1.8V

Short Pins 5 and 6 2.5V 2.5V (Default)

Short Pins 7 and 8 3.3V 3.3V

Note: Users that connect a daughter card on the HSMC connector need to pay close attention on the

I/O standard between DE2-115 HSMC connector pins and daughter card system. For example, if the I/O

standard of HSMC pins on DE2-115 board is set to 1.8V, a daughter card with 3.3V I/O standard may not

work properly on DE2-115 board due to I/O standard mismatch.

Additionally, when LVDS is used as the I/O standard of the HSMC connector, the LVDS receivers

need to assemble a 100 Ohm resistor between two input signals for each pairs as shown in Figure

4-14. Table 4-9 shows all the pin assignments of the HSMC connector.

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 120 121

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Altera DE2-115 User Manual Page 42