Arty Z7 Reference Manual Transfer Multisort Elektronik / tme.eu 16
regardless of if any USB device is connected to the host port. This is caused by the in-rush
current that C41 causes when the USB host controller is enabled and the VBUS power switch
(IC9) is turned on.
Note that if your design uses the USB Host port (embedded or general purpose), then the Arty
Z7 should be powered via a battery or wall adapter capable of providing more power (such as
the one included in the Arty Z7 accessory kit).
9 Ethernet PHY
The Arty Z7 uses a Realtek RTL8211E-VL PHY to implement a 10/100/1000 Ethernet port
for network connection. The PHY connects to MIO Bank 501 (1.8V) and interfaces to the
Zynq-7000 APSoC via RGMII for data and MDIO for management. The auxiliary interrupt
(INTB) and reset (PHYRSTB) signals connect to MIO pins MIO10 and MIO9, respectively.
Figure 9.1. Ethernet PHY signals
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