Maxim DS33R11 MII Interface Transmit MII Interface, Parameter Symbol, 10Mbps 100Mbps, Min Typ Max

DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver

13.2 MII Interface

Table 13-5. Transmit MII Interface

(Note 1, Figure 13-1)

PARAMETER	SYMBOL		10Mbps		100Mbps	UNITS
		MIN	TYP MAX	MIN	TYP MAX
TX_CLK Period	t1		400		40	ns
TX_CLK Low Time	t2	140	260	14	26	ns
TX_CLK High Time	t3	140	260	14	26	ns
TX_CLK to TXD, TX_EN Delay	t4	0	20	0	20	ns

Note 1: Timing parameters in this table are guaranteed by design (GBD).

Figure 13-1. Transmit MII Interface Timing

	t1
TX_CLK	t2
	t3
	t4
TXD[3:0]
TX_EN	t4

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