Clock Inputs; Audio Codec; Vga Output; Serial Ports - Altera Cyclone II Reference Manual

Altera Corporation
October 2006
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A switch produces logic 0 when in the DOWN
(closest to the edge of the board) position
and logic 1 when in the UP position

Clock Inputs

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50-MHz oscillator
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27-MHz oscillator
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24-MHz oscillator
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SMA external clock input

Audio CODEC

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Wolfson WM8731 24-bit sigma-delta audio CODEC
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Line-level input, line-level output, and microphone input jacks
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Sampling frequency: 8 to 96 KHz
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Applications for MP3 players and recorders, PDAs,
smart phones, voice recorders

VGA Output

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Uses a 4-bit resistor-network DAC
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15-pin high-density D-sub connector
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Supports up to 640x480 at 60-Hz refresh rate
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Can be used with the Cyclone II FPGA to implement
a high-performance TV encoder

Serial Ports

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One RS-232 port
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One PS/2 port
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DB-9 serial connector for the RS-232 port
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PS/2 connector for connecting a PS2 mouse
or keyboard to the board

Dual 40-Pin Expansion Headers

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72 Cyclone II I/O pins and 8 power and ground lines
connect to two, 40-pin expansion connectors
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40-Pin header designed to accept a standard 40-pin
ribbon cable used for IDE hard drives
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Resistor protection provided
Reference Manual
Cyclone II FPGA Starter Development Board
Introduction
1–9