Altera Cyclone III Development Board User Manual download pdf (Page 41)

Chapter 2: Board Components 2–31

General User Interfaces

1 The four-pin, 7-segment display uses fewer pins than 2-digit, 7-segment displays. See

Figure 2–7.

Ta bl e 2–34 lists the 7-segment display component reference and manufacturing

information.

Power 7-Segment Display

The power measured by the MAX II CPLD and associated A/D is displayed on board

reference U28, which is a dedicated 7-segment display connected to the MAX II

CPLD, labeled Power Display.

Ta bl e 2–35 lists the power 7-segment display component reference and manufacturing

information.

LCD Information

The development board is designed to accommodate two separate displays:

■ Character LCD

■ Graphics LCD

The first display is a 16-character, by 2-line LCD display. The second is a 128 × 64 pixel

transmissive graphics LCD. These two share a common bus but have separate control

signals so they can operate simultaneously. This section describes both displays.

Figure 2–7. 7-Segment Display

DIGIT2

DIGIT1

U30

F B

E C

QUAD_7SEG_M2212R1

DIGIT3

DIGIT4

Table 2–34. 7-Segment Display Component Reference and Manufacturing Information

Board Reference Description Manufacturer

Manufacturing

Part Number

Manufacturer

Website

U30 7-segment, green LED display Lumex, Inc. LDQ-M2212R1 www.lumex.com

Table 2–35. Power 7-Segment Display Component Reference and Manufacturing Information

Board Reference Description Manufacturer

Manufacturing

Part Number

Manufacturer

Website

U28 7-segment, green LED display Lumex, Inc. LDQ-M2212R1 www.lumex.com

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Altera Cyclone III Development Board User Manual Page 41