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DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
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13.4 MDIO Interface
Table 13-9. MDIO Interface
(Note 1, Figure 13-5)
PARAMETER SYMBOL MIN TYP MAX UNITS
MDC Frequency 1.67 MHz
MDC Period t1 540 600 660 ns
MDC Low Time t2 270 300 330 ns
MDC High Time t3 270 300 330 ns
MDC to MDIO Output Delay t4 20 10 ns
MDIO Setup Time t5 10 ns
MDIO Hold Time t6 20 ns
Note 1: Timing parameters in this table are guaranteed by design (GBD).
Figure 13-5. MDIO Interface Timing
MDC
MDIO
t4
MDC
t2
t3
t1
MDIO
t5
t6