AX88780 datasheet(9/49 Pages) ASIX

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AX88780

HD17

IO3, 8mA

126

Data bus bit17, internal pull low.

HD18

IO3, 8mA

125

Data bus bit18, internal pull low.

HD19

IO3, 8mA

124

Data bus bit19, internal pull low.

HD20

IO3, 8mA

122

Data bus bit20, internal pull low.

HD21

IO3, 8mA

121

Data bus bit21, internal pull low.

HD22

IO3, 8mA

120

Data bus bit22, internal pull low.

HD23

IO3, 8mA

118

Data bus bit23, internal pull low.

HD24

IO3, 8mA

116

Data bus bit24, internal pull low.

HD25

IO3, 8mA

114

Data bus bit25, internal pull low.

HD26

IO3, 8mA

113

Data bus bit26, internal pull low.

HD27

IO3, 8mA

112

Data bus bit27, internal pull low.

HD28

IO3, 8mA

111

Data bus bit28, internal pull low.

HD29

IO3, 8m

110

Data bus bit29, internal pull low.

HD30

IO3, 8mA

109

Data bus bit30, internal pull low.

HD31

IO3, 8mA

108

Data bus bit31, internal pull low.

HA1

Address bus bit1.

HA2

Address bus bit2.

HA3

Address bus bit3.

HA4

Address bus bit4.

HA5

Address bus bit5.

HA6

Address bus bit6.

HA7

Address bus bit7.

HA8

Address bus bit8.

HA9

Address bus bit9.

HA10

Address bus bit10.

HA11

Address bus bit11.

HA12

Address bus bit12.

HA13

Address bus bit13.

HA14

Address bus bit14.

HA15

Address bus bit15.

WEN

Data Write Enable:

WEN is driven by Host site, and it is active low.

CSN

Chip Select Enable.

CSN is driven by host site. It is active low.

OEN

Data Output Enable:

OEN is driven by the host site, and it is active low.

2.3 EEPROM Interface (Optional)

Table 2 : EEPROM Interface signals group

Pin Name

Type

Pin No.

Pin Description

EECLK

O3, 12mA

A low speed clock to EEPROM

EECS

O3, 12mA

Chip select to EEPROM device. This pin will be treated as full-duplex indicator

when bit10 of PHY_CTRL register is set to high. It is active high in full-duplex

mode, and low in half-duplex mode.

EEDI

O3, 12mA

Data to EEPROM, valid in EECS is high and EECLK in rising edge.

This pin will be treated as collision indicator when bit10 of PHY_CTRL register is

set to high. It is active high in collision indicator.

EEDO

I3, PD

Data from EEPROM

ASIX ELECTRONICS CORPORATION

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