Analog Devices Blackfin EZ-Extender 82-000845-01, Руководство пользователя

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Optional ADSP-BF537 EZ-KIT Lite Interfaces
1-6 Blackfin USB-LAN EZ-Extender
The EZ-KIT Lite and extender must not be powered via the 7.5V supply
when in Power-over-Ethernet (PoE) mode. A user can make the appropri-
ate jumper changes to the EZ-KIT Lite and extender and then connect the
kit to the extender to power both boards via the switch or Midspan device.
The user must use a switch or Midspan device that supports power via the
data pairs. If a user uses a Midspan device that powers only over the spare
pins, then the PoE circuitry will not work.
Table 1-3 shows a recommended Midspan device that supports both
power over the spare pins and power over the data pairs.
Use the Ethernet connector on the EZ-KIT Lite for the PoE application.
Power-over-Ethernet does not work properly if the Ethernet connector is
used on the extender board. When in PoE mode, the blinking LEDs
(
LED1–6]
) confirm successful power-up. Since PoE is intended as a simple
demonstration of the power circuitry, you are not able to bring up a Visu-
alDSP ++ session while in the PoE mode.
Refer to “Power Select Jumper (JP1)” on page 2-3 for the extender’s PoE
settings. Refer to the ADSP-BF537 EZ-KIT Lite Evaluation System Manual
for the EZ-KIT Lite’s PoE settings.
MII Interface
The Media Independent Interface (MII) allows you to evaluate different
PHY devices with the ADSP-BF537 EZ-KIT Lite. A separately purchased
PHY evaluation board connects directly to the USB-LAN EZ-Extender.
You also need to purchase the
J2
connector and solder it to be able to con-
nect the two boards together. The part numbers of the SMSC’s evaluation
boards and
J2
connector are shown in Table 1-4 .
Table 1-3. Midspan Device
Power Sourcing Equipment Manufacturer Part Number
Midspan device PowerDsine 6 PD-8006/AC
www.BDTIC.com/ADI