DE2-115 Datasheet, PDF(55/116 Page) Altera Corporation – The DE2-115 package contains all components needed to use the DE2-115 board in conjunction with a computer that runs the Microsoft Windows OS.

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DE2-115 Datasheet, PDF (55/116 Pages) Altera Corporation – The DE2-115 package contains all components needed to use the DE2-115 board in conjunction with a computer that runs the Microsoft Windows OS.

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Figure 4-23 Connections between FPGA and Audio CODEC

Signal Name

AUD_ADCLRCK

AUD_ADCDAT

AUD_DACLRCK

AUD_DACDAT

AUD_XCK

AUD_BCLK

I2C_SCLK

I2C_SDAT

Table 4-17

FPGA Pin No.

PIN_C2

PIN_D2

PIN_E3

PIN_D1

PIN_E1

PIN_F2

PIN_B7

PIN_A8

Audio CODEC Pin Assignments

Description

Audio CODEC ADC LR Clock

Audio CODEC ADC Data

Audio CODEC DAC LR Clock

Audio CODEC DAC Data

Audio CODEC Chip Clock

Audio CODEC Bit-Stream Clock

I2C Clock

I2C Data

I/O Standard

3.3V

Note: If the HSMC loopback adapter is mounted, the I2C_SCL will be directly routed back

to I2C_SDA. Because audio chip, TV decoder chip and HSMC share one I2C bus, therefore

audio and video chip wonât function correctly.

4.12 RS-232 Serial Port

The DE2-115 board uses the ZT3232 transceiver chip and a 9-pin DB9 connector for RS-232

communications. For detailed information on how to use the transceiver, please refer to the

datasheet, which is available on the manufacturerâs website, or in the DE2_115_datasheets\RS-232

folder on the DE2-115 System CD. Figure 4-24 shows the related schematics, and Table 4-18 lists

the Cyclone IV E FPGA pin assignments.

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