Altera Stratix IV E FPGA Development Board - Manual (Page 36)

2–28 Chapter 2: Board Components
General User Input/Output
Stratix IV E FPGA Development Board Reference Manual May 2011 Altera Corporation
Table 2–29 lists the seven-segment LED display component reference and the
manufacturing information.
Character LCD
The development board contains a single 14-pin 0.1" pitch dual-row header that
interfaces to a 16 character × 2 line Lumex character LCD display. The LCD has a
14-pin receptacle that mounts directly to the board's 14-pin character LCD header
(J23), so it can be easily removed for access to components under the display. You can
also use the character LCD header for debugging or other purposes.
Table 2–32 summarizes the character LCD pin assignments. The signal names are
relative to the Stratix IV E FPGA.
U29.7 G SEVEN_SEG_G
2.5-V
K29
U29.5 DP SEVEN_SEG_DP L29
U29.1 DIG_SEL1 SEVEN_SEG_SEL1 M26
U29.10 DIG_SEL2 SEVEN_SEG_SEL2 R28
U29.4 DIG_SEL3 SEVEN_SEG_SEL3 J29
U29.6 DIG_SEL4 SEVEN_SEG_SEL4 R27
U29.13 DIG_MINUS SEVEN_SEG_MINUS K30
Table 2–30. Seven-Segment LED Display Pin Assignments, Schematic Signal Names, and Functions
Board Reference Description
Schematic Signal Name
I/O Standard
Stratix IV E Device
Pin Number
Table 2–31. Seven-Segment LED Display Component Reference and Manufacturing Information
Board
Reference
Description Manufacturer
Manufacturer
Part Number
Manufacturer Website
U29 Quad digit seven-segment LED Lumex Inc. LDQ-M2212RI www.lumex.com
Table 2–32. Character LCD Header Pin Assignments, Schematic Signal Names, and Functions
Board Reference Description
Schematic Signal Name
I/O Standard
Stratix IV E Device
Pin Number
J23.1 Power 5.0V — —
J23.2 Ground GND — —
J23.3 Ground GND — —
J23.4 LCD data or command select LCD_D_Cn
2.5-V
AF13
J23.5 LCD write enable LCD_WEn AF14
J23.6 LCD chip select LCD_CSn AM9
J23.7 LCD data bus LCD_DATA0 AP9
J23.8 LCD data bus LCD_DATA1 AP11
J23.9 LCD data bus LCD_DATA2 AN10
J23.10 LCD data bus LCD_DATA3 AP10
J23.11 LCD data bus LCD_DATA4 AE13
J23.12 LCD data bus LCD_DATA5 AE14