SMSC LAN9500 - Manual (Page 33)

Hi-Speed USB 2.0 to 10/100 Ethernet Controller
Datasheet
SMSC LAN9500/LAN9500i 33 Revision 1.7 (10-02-08)
DATASHEET
4.5 AC Specifications
This section details the various AC timing specifications of the LAN9500/LAN9500i.
Note: The MII timing adheres to the IEEE 802.3 specification. Refer to the IEEE 802.3 specification
for detailed MII timing information.
Note: The USBDP and USBDM pin timing adheres to the USB 2.0 specification. Refer to the
Universal Serial Bus Revision 2.0 specification for detailed USB timing information.
4.5.1 Equivalent Test Load
Output timing specifications assume the 25pF equivalent test load illustrated in Figure 4.1 below,
unless otherwise specified.
Figure 4.1 Output Equivalent Test Load
25 pF
OUTPUT