VSC8211 Evaluation Board
User Guide
Revision 1.0
December 2013
Vitesse Proprietary
Page 6 of 13
•
VSC8211 Datasheet
(
https://www.vitesse.com/products/download.php?fid=118&number=VSC8211
)
•
VSC8211 Evaluation Board GUI
(
https://www.vitesse.com/products/download.php?fid=5157&number=VSC8211
)
•
VSC8211 Evaluation Board Schematics
(
https://www.vitesse.com/products/product.php?number=VSC8211
)
2
General Description
The VSC8211EV provides the user a way to evaluate the VSC8211 device in multiple
configurations. One RJ-45 connector is provided for the copper media interface. The
MAC interface is accessible via SMA connectors. An SFP cage is available for serial to
serial configurations, and headers are available for the parallel interface
The VSC8211’s internal registers are accessed via the MDIO bus from an external
microcontroller driven by an external PC via USB. The accompanying GUI enables the
user to read and write the device registers. Alternatively, the VSC8211EV also has the
capability to configure the VSC8211 through an EEPROM or Rabbit microcontroller
(not-provided).
The evaluation board has the option to use VSC8211’s internal on-chip oscillator by
connecting a 25MHz crystal to XTAL1 and XTAL2 or an external reference clock signal
through the REFCLK SMA (J12).
2.1
Hardware Features
2.1.1
Power Connections
For convenience, the evaluation board runs off a 5VDC power supply. On board
DC-DC convertors create the +3.3VDC rail for the board and op1.2VDC rail. Power is
supplied to the upper right corner of the board. Power can be applied either to the
5.5 x 2.1 mm barrel connector (J24) or the banana receptacles (J25 and J26). J27 is an
optional monitor point for the 1.2V rail. When powered by a bench top supply the
board may draw up to 3A maximum, module included.
2.1.2
Copper Port RJ45 Connections
The RJ45 copper media PHY port (J1) uses a generic RJ45 jack with a discrete Pulse
H5008 magnetic transformer.
2.1.3
SGMII MAC Interface via SMA
The serial MAC interface is available through SMA connectors (J2, J4, J3, and J6), including
the optional SCLK (on J5 and J7).