Altera Cyclone II FPGA Starter Development Board Manuale Utente Scaricare il pdf (Pagina 16)

1–8 Reference Manual Altera Corporation

Cyclone II FPGA Starter Development Board October 2006

Introduction

■ FineLine BGA 484-pin package

Serial Configuration Device and USB Blaster Circuit

■ Altera EPCS4 serial configuration device

■ On-board USB-Blaster chip set for programming

and user API control

■ Selectable JTAG and AS programming modes

SRAM

■ 512-KByte static RAM memory chip

■ Organized as 256K x 16 bits

■ Accessible as memory for the Nios II processor

and by the Control Panel GUI

SDRAM

■ 8-MByte single data rate synchronous dynamic RAM memory chip

■ Organized as 1M x 16 bits x 4 banks

■ Accessible as memory for the Nios II processor

and by the Control Panel GUI

Flash Memory

■ 4-MByte NOR flash memory

■ 8-bit data bus

■ Accessible as memory for the Nios II processor

and by the Control Panel GUI

SD Card Socket

■ Provides SPI mode for SD card access

■ Accessible as memory for the Nios II processor

with the DE1 SD Card Driver

Push Button Switches

■ 4 push button switches

■ Debounced by a Schmitt trigger circuit

■ Normally HIGH; generates one active-LOW pulse

when the switch is pressed

Toggle Switches

■ 10 toggle switches for user inputs

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 55 56

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Altera Cyclone II FPGA Starter Development Board Manuale Utente Pagina 16