Altera Stratix II EP2S180 DSP Development Board Manuel d'utilisateur télécharger pdf (Page 33)

Altera Corporation Core Version a.b.c variable 2–25

Stratix II EP2S180 DSP Development Board Reference Manual

Board Components & Interfaces

Flash Memory (U17)

U17 is a 16-Mbyte AMD AM29LV128M flash memory device connected

to the Stratix II device. It can be used for two purposes:

■ A Nios II embedded processor implemented in the Stratix II device

can use the flash as general-purpose readable memory and

nonvolatile storage.

■ The flash memory can hold a Stratix II device configuration file that

is used by the configuration controller to load the Stratix II device at

power-up.

Refer to Table 2–21 for Stratix II pin-outs for flash memory device U17.

Hardware configuration data that implements the sines reference design

is prestored in this flash memory and configures the Stratix II device with

this design on boot up. A Nios II reference design can identify the 16-

Mbyte flash memory in its address space, and can program new data

(either new Stratix II configuration data, Nios II embedded processor

software, or both) into flash memory. For an example of programming

the flash memory, refer to “Programming Example for the 2S180 DSP

Development Board” on page 2–6.

Table 2–21. Flash Memory (U17) (Part 1

of 2)

Pin Name Pin Number

FLASH_A0 AF30

FLASH_A1 AF29

FLASH_A2 AE30

FLASH_A3 AE29

FLASH_A4 AG32

FLASH_A5 AG31

FLASH_A6 AF32

FLASH_A7 AF31

FLASH_A8 AE32

FLASH_A9 AE31

FLASH_A10 AD32

FLASH_A11 AD31

FLASH_A12 AB28

FLASH_A13 AB27

FLASH_A14 AC32

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 57 58

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Altera Stratix II EP2S180 DSP Development Board Manuel d'utilisateur Page 33