CD2231

Manufacturer Part NumberCD2231
DescriptionCD2231 Intelligent Two-channel Lan And Wan Communications Controller
ManufacturerIntel Corporation
CD2231 datasheet
 


1
2
3
4
5
6
7
8
9
10
11
Page 11
12
Page 12
13
Page 13
14
Page 14
15
Page 15
16
Page 16
17
Page 17
18
Page 18
19
Page 19
20
Page 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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
Page 16/178

Download datasheet (3Mb)Embed
PrevNext
CD2231 — Intelligent Two-Channel LAN and WAN Communications Controller
3.2
Pin Functions
A/D[0–15]
BUSCLK
DATDIR*
BYTESWAP
IACKOUT*
IREQ*[1–3]
BGOUT*
BGACK*
3.3
Pin Descriptions
The following conventions are used in the pin-description tables:
(*) after a name indicates that the signal is active-low
‘I’ indicates the pin is input-only
‘O’ indicates the pin is output-only
‘I/O’ indicates the pin is bidirectional
‘OD’ indicates open-drain; OD pins must be terminated to V
‘TS’ indicates tristate
a ‘–’ indicates ascending pin numbers
a ‘:’ indicates descending pin numbers
16
A[0–7]
CLK
CS*
AS*
DS*
R/W*
HOST AND DMA
DTACK*
SIGNALS
SIZ[0–1]
BERR*
RESET*
TEST
ADLD*
CD2231
AEN*
DATEN*
IACKIN*
INTERRUPT
SIGNALS
BR*
BUS
BGIN*
ARBITRATION
SIGNALS
TXD[0–3]
RXD[0–3]
TXCIN[0–3]
RXCIN[0–3]
SERIAL
TXCOUT/DTR*[0–3]
CH. 0
RXCOUT[0–3]
RTS*[0–3]
CTS*[0–3]
DSR*[0–3]
CD*[0–3]
10
SERIAL
CH. 1
6
VDD AND GND
by a 2K - 4.7K resistor
CC
Datasheet