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Intel
®
LXD972M Transceiver Demo Board (Board Rev A1)
Preliminary User’s Guide 17
Document Number: 303125
Revision Number: 002
Revision Date: October 22, 2004
Figure 5. Schematic: Intel
®
LXD972M Transceiver Demo Board MII Port
A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
X=DO NOT INSTALL
Intel(R) LXD972M Transceiver Demo Board MII PORT
A1
LXD972M LQFP48C DV/DEMO
Intel Corporation
9750 Goethe Road
Sacramento, CA 95827
B
35Monday, September 20, 2004
Title
Size Document Number Rev
Date: Sheet
of
R0
TC
R1
R2
RV
T2
RC
RE
T1
T0
T3
TN
CR
CL
R3
MDIO_1
MDC_1
LED/CFG2
LED/CFG3
LED/CFG1
TPFOP
TPFON
TPFIP
TPFIN
GND
GND
VCC
GND
GND
VCC
GND
VCC
GND
VCC
GND
VCC
GND
R80
X
TP26
1
R27 50 1%
R34
22
U2B
LXT972M_LQFP48C
33
34
35
36
37
40
41
42
43
44
45
46
47
48
1
28
27
26
15
14
18
17
RXD3
RXD2
RXD1
RXD0
RX_DV
RX_CLK
RX_ER
TX_CLK
TX_EN
TXD0
TXD1
TXD2
TXD3
COL
CRS
LED/CFG1
LED/CFG2
LED/CFG3
TPFON0
TPFOP0
TPFIN
TPFIP
R38
22
R79
X
R31 50 1%
R43
50 1%
U3
SN74LVC244A
2
4
6
8
11
13
15
17
1
19
18
16
14
12
9
7
5
3
2010
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1G
2G
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
VCCGND
R41
50 1%
R30
22
R47 50 1%
R81
X
U1
SN74LVC244A
2
4
6
8
11
13
15
17
1
19
18
16
14
12
9
7
5
3
2010
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1G
2G
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
VCCGND
R78
X
TP15
1
R25 50 1%
P1
MII 40 PIN
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
TP27
1
R42
50 1%
TP16
1
TP41
1
R45 22
R24 50 1%
TP24
1
R37
22
TP42
1
TP28
1
R29 50 1%
TP17
1
TP43
1
R36
22
TP29
1
R35
50 1%
R33 50 1%
R44
50 1%
TP18
1
R26
22
R77
X
TP30
1
TP19
1
TP22
1
TP25
1
R48 22
R28
22
R40
50 1%
R46 50 1%
TP20
1
R23 50 1%
R32
22
C14
0.1uF
TP21
1
C15
0.1uF