Datasheet

Micrel, Inc.
KSZ8081MNX/KSZ8081RNB
August
19, 2015 61
Revision 1.4
MDC/MDIO Timing
Figure 19. MDC/MDIO Timing
Table 21. MDC/MDIO Timing Parameters
Timing Parameter Description Min. Typ. Max. Units
fc MDC Clock Frequency 2.5 10 MHz
t
P
MDC period 400 ns
t
MD1
MDIO (PHY input) setup to rising edge of MDC 10 ns
t
MD2
MDIO (PHY input) hold from rising edge of MDC 4 ns
t
MD3
MDIO (PHY output) delay from rising edge of MDC 5 222 ns