ADSP-SC589 EZ-Board® Evaluation System Manual
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2.19 Current Monitor Interface
The ADSP-SC589 EZ-Board contains a Texas Instruments INA3221 triple-channel, high-side
measurement, shunt, and bus voltage monitor. The INNA3221 monitors both shunt voltage drops and
bus supply voltages in addition to having programmable conversion times and averaging modes for
these signals. It offers both critical and warning alerts to detect out-of-range conditions for each
channel. This device is connected to the ADSP-SC589 processor through TWI0. The device is used to
measure the voltage levels and current draw from 1.5V (DDR3), VDD_INT, and VDD_EXT.
For more information, refer to the example in the POST, which is included in the ADSP-SC589 Board
Support Package.
2.20 Programmable Oscillator
The ADSP-SC589 EZ-Board contains a Silicon Labs Si5356A I2C programmable, quad output clock
generator. This device generates clocks for the CLKIN0 and CLKIN1 inputs for the ADSP-SC589
processor. It also generates the CLKIN for the ADAU1962A. When the board powers up, the
CLKIN0 and CLKIN1 signals default to 25 MHz and the ADAU1962A_CLKIN defaults to 24.576
MHz. The Si5356A connects to the ADSP-SC589 processor through TWI0. Different frequencies can
be programmed into the part by using the Silicon Labs ClockBuilder desktop software available
.
For more information, refer to the example in the POST, which is included in the ADSP-SC589 Board
Support Package.
2.21 SD Interface
The ADSP-SC589 processor has a secure digital (SD) interface that consists of a clock pin, command
pin, card detect pin, and an 8-bit data bus. SoftConfig controls the connection a GPIO pin used for
write protect (PC_15). Refer to
and SD Connector (J18)
Software-Controlled Switches (SoftConfig)
for more details.
For more information, refer to the example in the POST, which is included in the ADSP-SC589 Board
Support Package.
2.22 Debug Interface
The EZ-Board provides a JTAG connection through a connector (P3), which is a 0.05" pitch header.
A 16-bit trace connection also is available through a connector (P2), although this is not supported at
this time. See JTAG Connector (P3) and TRACE and JTAG Connector (P7) for more information.
