KSZ8463_eval_bd_user_guide_1.1.docx
Micrel, Inc.
July 17, 2013
Confidential
Rev. 1.1
12/16
Figure 3 GPIO Connectors and Related Jumper Locations
3.5 10/100 Ethernet PHY Ports
There are two 10/100 Ethernet PHY ports on the KSZ8463ML/RL evaluation board. The ports can be
connected to an Ethernet traffic generator or analyzer via standard RJ-45 connectors using CAT-5 (or
better) UTP cables. Both ports support auto MDI/MDI-X, eliminating the need for cross-over cables.
Transformers are utilized for proper interfacing to an Ethernet network. In addition, optional over-voltage
protection devices D5 thru D12 may be installed to protect the KSZ8463 in the event of an over-voltage
condition.
For 10/100 Ethernet, the FXSD1 and FXSD2 pins should be pulled low by installing jumpers on pins 3 & 4
of J12 and J13.
3.6 100BASE-FX Fiber Port Option
There are two 100BASE-FX PHY ports on the KSZ8463ML/RL evaluation board, which are not populated
with necessary components. The ports can be connected to an Ethernet traffic generator or analyzer via
fiber transceiver and fiber cable. In 100BASE-FX operation, both fiber signal detect input FXSD1 and
FXSD2 are usually connected to the fiber transceiver SD (signal detect) output pin. This is done by
jumpering pins 1 & 2 of J12 (Port 1) and J13 (Port 2). No jumpers are required on JP77 and JP78 except
as noted below. Capacitors C5 and C6 are also generally not required.
100BASE-FX is supported by the KSZ8463FML and KSZ8463FRL devices. All KSZ8463 devices power
up in copper mode. Fiber Mode is selected by clearing the appropriate bits in the GFCR register (0x0D8 –
0x0D9).
