AX88180 datasheet(9/47 Pages) ASIX

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AX88180

ASIX ELECTRONICS CORPORATION

Asynchronous signal CRS is asserted by the PHY when either the transmitted or

receive medium is non-idle.

MDIO

IO2, PU,

8mA

Station Management Data Input /Output:

Serial data input/Output transfers from/to the PHY. The transfer protocol conforms

to the IEEE 802.3u MII specification.

MDC

O2, 8mA

Station Management Data Clock:

The timing reference for MDIO. All data transfers on MDIO are synchronized to the

rising edge of this clock.

PHYINTN I2

Interrupt signal from PHY, active low.

TXCLK

A clock from Giga-PHY operates in MII mode.

If Giga-PHY provides clock for 10/100M in MII mode, AX88180 can use this pin as

reference clock. For normal operation, to connect TXCLK of Giga-PHY with this

pin.

2.3 Host Interface

Table 2 : Host Interface signals group

Pin Name

Type

Pin NO

Pin Description

INTN

TSO, 8mA

102

Interrupt to host system

When the polarity is active high, this signal must be pulled low, otherwise pulled

high in active low environment. Software set the bit6 of command register (CMD) to

response the polarity.

RST_N

103

Reset signal: active low.

HCLK

104

Reference Clock. This clock may be from host (synchronous mode) or the output of

stand-alone OSC (asynchronous mode).

WAKEUP

TSO, 8mA

115

Wake-up signal to system. When the polarity of system is active high, this signal

must be pulled low, otherwise pulled high in active low environment. Software set

the bit0 of command register (CMD) to response the polarity.

HD0

IO3, 8mA

Data bus bit0.

HD1

IO3, 8mA

Data bus bit1.

HD2

IO3, 8mA

Data bus bit2.

HD3

IO3, 8mA

Data bus bit3.

HD4

IO3, 8mA

Data bus bit4.

HD5

IO3, 8mA

Data bus bit5.

HD6

IO3, 8mA

Data bus bit6.

HD7

IO3, 8mA

Data bus bit7.

HD8

IO3, 8mA

Data bus bit8.

HD9

IO3, 8mA

Data bus bit9.

HD10

IO3, 8mA

Data bus bit10.

HD11

IO3, 8mA

Data bus bit11.

HD12

IO3, 8mA

Data bus bit12.

HD13

IO3, 8mA

Data bus bit13.

HD14

IO3, 8mA

Data bus bit14.

HD15

IO3, 8mA

128

Data bus bit15.

HD16

IO3, 8mA

127

Data bus bit16, internal pull down. *

HD17

IO3, 8mA

126

Data bus bit17, internal pull down. *

HD18

IO3, 8mA

125

Data bus bit18, internal pull down. *

HD19

IO3, 8mA

124

Data bus bit19, internal pull down. *

HD20

IO3, 8mA

122

Data bus bit20, internal pull down. *

HD21

IO3, 8mA

121

Data bus bit21, internal pull down. *

HD22

IO3, 8mA

120

Data bus bit22, internal pull down. *

HD23

IO3, 8mA

118

Data bus bit23, internal pull down. *

HD24

IO3, 8mA

116

Data bus bit24, internal pull down. *

HD25

IO3, 8mA

114

Data bus bit25, internal pull down. *

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