ADSP-SC589 EZ-Board® Evaluation System Manual
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2.16 USB Interface
The ADSP-SC589 processor has two instances of USB controllers. One supports USB 2.0 HS On-The-
Go (OTG) and the other supports USB 2.0 HS device mode only. The EZ-Board provides two micro
AB connectors. The board supplies a maximum of 5V at 500 mA to a peripheral device when
connecting to the OTG connector by enabling a FET switch. The USB controller oversees the FET
switch through the USB0_VBC signal.
For more information, refer to the USB example in the POST, which is included in the ADSP-SC589
Board Support Package.
2.17 PCI Express Interface
The ADSP-SC589 processor has one instance of PCIe. The PCIe port can operate as a Root Complex
and as an End Point. In each one of these modes it can operate as a Gen1 2.5 GT/s or as a Gen2 5.0 GT
/s.
The board is configured by default to operate in EP (Endpoint) mode. In this mode a cable is required
to connect the SC589 EZ-Board with a RC (Root Complex) host. Refer to
for ore
information. In order to use the SC589 EZ-Board in RC mode some changes are required to the board.
If a clock signal is required to be present on the PCIe connector then 0 ohm resistors need to be
populated at locations R417 and R418. The location of these resistors can be found by looking at the
layout data in the
. A modified PCIe cable is also required in this mode.
Please contact Analog Devices for more information about this mode and how to acquire a cable.
2.18 Link Ports Interface
The ADSP-SC589 processor has two dedicated link ports. Each link port has a clock pin, an
acknowledgment pin, and eight data pins. The ports can operate at up to 150 MHz and act as either
receivers or transmitters. The ports are used to interface gluelessly to other ADSP-SC589 processors
which also have the link ports pins brought out to a connector.
The EZ-Board enables access to link ports 0 and 1 through connectors J3 and J23, respectively. Two
ADSP-SC589 EZ-Boards can mate gluelessly through the link port connectors using an off-the-shelf
cable from Samtec. The processors communicate through the link ports, all while performing
independent tasks on each of the EZ-Boards. To loopback the link port connectors on one EZ-Board
to another, obtain a standard, off-the-shelf cable from Samtec. For more information, see
.
