Datasheet

KSZ8721BL/SL
DS00002813A-page 32  2018 Microchip Technology Inc.
7.5 SMI Timing
FIGURE 7-5: SERIAL MANAGEMENT INTERFACE TIMING
TABLE 7-5: SERIAL MANAGEMENT INTERFACE TIMING PARAMETERS
Parameter Symbol Min. Typ. Max. Units
MDC Period t
P
— 400 — ns
MDIO Set-Up to MDC (MDIO as Input) t
MD1
10 — — ns
MDIO Hold After MDC (MDIO as Input) t
MD2
10 — — ns
MDC to MDIO Valid (MDIO as Output) t
MD3
— 222 — ns
t
MD1
Valid
Data
MDIO
(Into Chip)
Valid
Data
MDC
t
MD2
MDIO
(Out of Chip)
Valid
Data
t
MD3
t
P