KSZ8864 Evaluation Board User’s Guide
Micrel Inc.
Page 5
5/9/2014
4.0 Hardware Description
The KSZ8864 evaluation board is in a compact form factor and can sit on a bench near a
computer/laptop. There are three options for configuration: strap in mode; EEPROM mode; and
SPI mode. Strap in mode configuration is easily done with on board jumper options. EEPROM
mode and SPI mode are accomplished through a built in USB port interface. Using Micrel
EEPROM software and your PC, you can reprogram the EEPROM on board by the USB port. Or
using Micrel SPI software and your PC, you can access the KSZ8864’s full feature set registers by
the USB to SPI interface. The board also features the MII connectors for the Switch MII/RMII
interface on port 3 and port 4. These are to facilitate connections from the switch to an external
MAC or PHY with MII/RMII interface.
The KSZ8864 evaluation board is easy to use. There are programmable LED indicators for link and
activity on all ports and a power LED. A manual reset button allows the user to reset the board
without removing the power plug. A standard 5VDC power supply is included so that the user can
supply power from any 110-240 Volt AC wall or bench socket, and the power also can be provided
by USB port when close pin 2-3 of the JP47 jumper.
Figure 1 KSZ8864 Evaluation Board
