Specifications

Chapter 2: Board Components 2–31
General User Interfaces
© March 2009 Altera Corporation Cyclone III 3C120 Development Board Reference Manual
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
an
14
ca
13
A
12
B
11
C
3
D
8
E
2
F
9
G
7
DP
5
1
10
4
8
DIGIT2
DIGIT1
U30
A
G
D
DP
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