SMSC LAN9500 - Manual (Page 34)

Hi-Speed USB 2.0 to 10/100 Ethernet Controller
Datasheet
Revision 1.7 (10-02-08) 34 SMSC LAN9500/LAN9500i
DATASHEET
4.5.2 Power-On Configuration Strap Valid Timing
Figure 4.2 illustrates the configuration strap valid timing requirement in relation to power-on. In order
for valid configuration strap values to be read at power-on, the following timing requirements must be
met.
Figure 4.2 Power-On Configuration Strap Valid Timing
Table 4.9 Power-On Configuration Strap Valid Timing
SYMBOL DESCRIPTION MIN TYP MAX UNITS
t
cfg
Configuration strap valid time 15 mS
VDD33IO
Configuration Straps
t
cfg
2.0V