lan91c100 Standard Microsystems Corp., lan91c100 Datasheet - Page 3

• Manufacturer Part Number: lan91c100
• Description: Feast ? Ast Ethernet Controller
• Manufacturer: Standard Microsystems Corp.

even though ISA cannot sustain 100 Mbps
traffic. Fast Ethernet could be adopted for ISA-
based nodes on the basis of the aggregate
traffic benefits.
FEAST is software-compatible with the existing
LAN9000 family of products and can use current
LAN9000 drivers in 16- and 32-bit Intel X86-
based environments.
Two different interfaces are supported on the
network side. The first is a conventional seven
TXEN100
nCSOUT
COL100
CRS100
RX_ER
RX_DV
nRWE0
ENEEP
MIISEL
XTAL1
XTAL2
EEDO
TXEN
RXD0
RXD1
RXD2
RXD3
nLNK
RX25
TXD0
TXD1
TXD2
TXD3
RD15
RD14
RD13
RD12
RD11
RD10
TX25
IOS0
GND
IOS1
IOS2
GND
GND
GND
VDD
VDD
VDD
VDD
VDD
RD7
RD6
RD5
RD4
RD3
RD2
RD1
RD0
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
208 Pin PQFP
LAN91C100
and TQFP
PIN CONFIGURATION
3
wire ENDEC interface that connects to the
LAN83C694 for 10BASE-T and coax 10 Mbps
Ethernet networks. The second interface follows
the
specification draft standard, consisting of 4 bit
wide data transfers at the nibble rate. FEAST
also interfaces to the MII serial management
protocol. Four I/O ports (one input and three
output pins) are provided for LAN83C694
configuration.
MII
(Media
Independent
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
Interface)
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
D8
VDD
D9
D10
D11
D12
GND
D13
D14
D15
GND
D16
VDD
D17
D18
D19
GND
D20
D21
VDD
D22
D23
GND
D24
GND
VDD
D25
D26
GND
D27
D28
D29
D30
GND
D31
nRDYRTN
nLDEV
VDD
nSRDY
LCLK