Altera Stratix III Development Board Manual do Utilizador descarregar pdf (Página 42)

2–34 Chapter 2: Board Components

General User Interfaces

Stratix III 3SL150 Development Board May 2013 Altera Corporation

Reference Manual

Table 2–33 shows pin definitions, and is an excerpt from the Lumex data sheet.

f For more information such as timing, character maps, interface guidelines, and

related documentation, visit www.lumex.com.

Figure 2–10 shows a functional block diagram of the Lumex LCD display device.

1 The particular model used does not have a backlight and the LCD drive pin is not

connected.

Table 2–33. Character LCD Display Pin Definitions

Pin Number Symbol Level Function

—

Power supply

— GND (0V)

— For LCD drive

4RS H/L

H: Data input

L: Instruction input

5R/W H/L

H: Data read (module to MPU)

L: Data write (MPU to module)

6 E H, H to L Enable

7~14 DB0~DB7 H/L Data bus, software selectable 4- or 8-bit mode

Figure 2–10. LCD Display Block Diagram

Block Diagram 16 X 2, 1/16 Duty, 1/5 Bias

SEC 80

COM 16

R/W

DB[7:0]

LCD

Panel

LCD

Controller

LSI

and

Driver

LED Backlight

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Altera Stratix III Development Board Manual do Utilizador Página 42