AX88871AP Bripeater

ASIX ELECTRONICS CORPORATION

30

Appendix B: Using MII I/F connects to MAC

There are two ports of AX88871A can connect to MAC type MII interface. For example, Port 7 is

illustrated bellow.

10K

Gnd

AX88871 / Repeater

AX88195 / MAC

Note : 1. The MAC needs to run at halfduplex mode.

2. Care must be taken that the receive side has enough setup and/or hold time

3. Some kind of CPU with embbeded MAC can also refer to this example

10K

Gnd

AX88871 / Repeater

10Mbps MAC

COL_O7

TXEN7

(LCLK)

TXD7[3:0]

TXER7

CRS7

RXDV7

RXCLK7

RXD7[3:0]

RXER7

COL

CRS

RX_DV

RX_CLK

RXD[3:0]

RX_ER

TX_EN

TX_CLK

TXD[3:0]

TX_ER

25MHz

Clock

COL_O7

TXEN7

MCLK

TXD7[3:0]

TXER7

CRS7

RXDV7

RXCLK7

RXD7[3:0]

RXER7

COL

CRS

RX_DV

RX_CLK

RXD[3:0]

RX_ER

TX_EN

TX_CLK

TXD[3:0]

TX_ER