Analog Devices 82-000845-01 User Manual download pdf (Page 20)

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 2-4 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

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 47 48

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Analog Devices 82-000845-01 User Manual Page 20