ADSP-SC589 EZ-Board® Evaluation System Manual
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An example program is included in the ADSP-SC589 Board Support Package to demonstrate how to
set up and access the DDR3 interface. For more information on how to initialize the registers after a
reset, refer to the hardware reference manual.
2.8 SPI Flash
The ADSP-SC589 processor has three SPI interfaces: SPI0, SPI1, and SPI2. SPI2 is connected to a
Winbond W25Q128FV 128 Mb serial flash memory with dual and quad SPI support. This flash is
used for booting and scratchpad space.
Quad mode is enabled by default. The processor flag signals PC_06 (SPI2_ SEL1), PC_04
(SPI2_D2), and PC_05 (SPI2_D3) are connected by default and can be disconnected by using
SoftConfig. Refer to
for more information.
Software-Controlled Switches (SoftConfig)
For more information, refer to the SPI flash example in the POST, which is included in the ADSP-
SC589 Board Support Package.
2.9 SPI EEPROM Interface
The ADSP-SC589 processor has three SPI interfaces: SPI0, SPI1, and SPI2. SPI0 is connected to a
Microchip 25LC010A 1 Kb serial flash electronically erasable programmable only memory. This
flash is used for storing configuration data for EAVB.
The SPI EEPROM is disabled by default. The processor flag signal PD_01 (SPI0_SEL2) is not
connected by default and can be connected by using SoftConfig. Refer to
For more information, refer to the SPI flash EEPROM example in the POST, which is included in the
ADSP-SC589 Board Support Package.
2.10 Audio Interface
The ADSP-SC589 EZ-Board contains an ADC and a DAC. The ADAU1979 is a quad analog-to-
digital converter. The ADC incorporates four high-performance analog-to-digital converters. This
converter uses a multi-bit sigma-delta architecture with continuous time front-end for low EMI. The
ADAU1979 contains an SPI port which is used as a control port to adjust volume and many other
parameters. The ADAU1962A is a 12-channel high-performance digital-to-analog converter. The
DAC uses a multi-bit sigma-delta architecture and is designed for low EMI. This converter contains
an SPI port which is used as a control port to adjust volume and other parameters.
