UM_APIX2_ADK_TX (Rev2) Revision 1.2_A1
Inova Semiconductors Confidential
Page 24 of 37
User Manual
6.0 Extension Boards (optional)
The APIX2_ADK boards are designed to be easily extended with application specific boards. The following ex-
tender boards are available:
• APIX2_ADK_ETH: Ethernet Extender board. The board includes a 3 port Ethernet switch with a MII
interface, which allows to directly forward Ethernet traffic over the APIX link
• APIX2_ADK_EXT: I/O Extender board. The board allows to route all INAP375T/R pins to a separate board
with headers for each pin.
6.1 Ethernet Extender Board
6.1.1 Description
The Ethernet board contains a Micrel KSZ8893MQL 3-port Ethernet switch, which offers two integrated ether-
net PHYs and 1 MII interface. The MII interface is routed through flex cables to the TX/RX main board. The
controller is also completely powered and configured by the master board.
The two integrated PHYs are brought out to two RJ45 connectors. Each can be used to connect another eth-
ernet device, whose traffic will be forwarded through the APIX link.
Figure 6-1: Ethernet board Top View
X2
SV1
SV2
X1
S1
