
AX88780
HD17
HD18
HD19
HD20
HD21
HD22
HD23
HD24
HD25
HD26
HD27
HD28
HD29
HD30
HD31
HA1
HA2
HA3
HA4
HA5
HA6
HA7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
WEN
IO3, 8mA
IO3, 8mA
IO3, 8mA
IO3, 8mA
IO3, 8mA
IO3, 8mA
IO3, 8mA
IO3, 8mA
IO3, 8mA
IO3, 8mA
IO3, 8mA
IO3, 8mA
IO3, 8m
IO3, 8mA
IO3, 8mA
I3
I3
I3
I3
I3
I3
I3
I3
I3
I3
I3
I3
I3
I3
I3
I3
126
125
124
122
121
120
118
116
114
113
112
111
110
109
108
42
41
34
33
32
31
30
29
28
26
25
24
23
22
21
44
Data bus bit17, internal pull low.
Data bus bit18, internal pull low.
Data bus bit19, internal pull low.
Data bus bit20, internal pull low.
Data bus bit21, internal pull low.
Data bus bit22, internal pull low.
Data bus bit23, internal pull low.
Data bus bit24, internal pull low.
Data bus bit25, internal pull low.
Data bus bit26, internal pull low.
Data bus bit27, internal pull low.
Data bus bit28, internal pull low.
Data bus bit29, internal pull low.
Data bus bit30, internal pull low.
Data bus bit31, internal pull low.
Address bus bit1.
Address bus bit2.
Address bus bit3.
Address bus bit4.
Address bus bit5.
Address bus bit6.
Address bus bit7.
Address bus bit8.
Address bus bit9.
Address bus bit10.
Address bus bit11.
Address bus bit12.
Address bus bit13.
Address bus bit14.
Address bus bit15.
Data Write Enable:
WEN is driven by Host site, and it is active low.
Chip Select Enable.
CSN is driven by host site. It is active low.
Data Output Enable:
OEN is driven by the host site, and it is active low.
CSN
I3
45
OEN
I3
43
2.3 EEPROM Interface (Optional)
Table 2 : EEPROM Interface signals group
Pin No.
47
A low speed clock to EEPROM
48
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.
49
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.
50
Data from EEPROM
Pin Name
EECLK
EECS
Type
O3, 12mA
O3, 12mA
Pin Description
EEDI
O3, 12mA
EEDO
I3, PD
9
ASIX ELECTRONICS CORPORATION