Appendix F: SMB-200/2000 Cables and Connectors
Ethernet Connectors
234
SmartBits System Reference
Table B-1.
80-Pin Connector Assignments
I/O
Pin
Signal Name
Pin
Signal Name
RMII
SMII
RMII
SMII
O
1
3VCC
3VCC
41
3VCC
3VCC
O
2
5VCC
5VCC
42
5VCC
5VCC
O
3
43
REF_CLK–
REF_CLK–
O
4
GND
GND
44
GND
GND
O
5
DNC (Note 5)
SYNC+
45
DNC (Note 5)
SYNC–
O
6
/SMII (Note 1)
/SMII (Note 1)
46
/BRDCON (Note 2)
/BRDCON (Note 2)
O
7
TXD1+
47
TXD1_0–
TXD1–
O
8
DNC (Note 5)
48
TXD1_1–
DNC (Note 5)
O
9
TXEN1+
DNC (Note 5)
49
TXEN1–
DNC (Note 5)
I
10
RXD1+
50
RXD1_0–
RXD1–
I
11
DNC (Note 5)
51
RXD1_1–
DNC (Note 5)
I
12
DNC (Note 5)
52
CRS_DV1–
DNC (Note 5)
I
13
R_CLK+ (Note 3)
R_CLK+ (Note 3)
53
R_CLK– (Note 3)
R_CLK– (Note 3)
O
14
GND
GND
54
GND
GND
O
15
TXD2+
55
TXD2_0–
TXD2–
O
16
DNC (Note 5)
56
TXD2_1–
DNC (Note 5)
O
17
TXEN2+
DNC (Note 5)
57
TXEN2–
DNC (Note 5)
I
18
RXD2+
58
RXD2_0–
RXD2–
I
19
DNC (Note 5)
59
RXD2_1–
DNC (Note 5)
I
20
DNC (Note 5)
60
CRS_DV2–
DNC (Note 5)
I
21
DNC (Note 5)
(Note 3)
61
DNC (Note 5)
R_SYNC– (Note 3)
O
22
GND
GND
62
GND
GND
O
23
TXD3+
63
TXD3_0–
TXD3–
O
24
DNC (Note 5)
64
TXD3_1–
DNC (Note 5)
O
25
TXEN3+
DNC (Note 5)
65
TXEN3–
DNC (Note 5)
I
26
RXD3+
66
RXD3_0–
RXD3–
I
27
DNC (Note 5)
67
RXD3_1–
DNC (Note 5)
I
28
DNC (Note 5)
68
CRS_DV3–
DNC (Note 5)
I
29
/RESET (Note 4)
DNC (Note 5)
69
DNC (Note 5)
DNC (Note 5)
O
30
GND
GND
70
GND
GND
O
31
TXD4+
71
TXD4_0–
TXD4–
O
32
DNC (Note 5)
72
TXD4_1–
DNC (Note 5)
O
33
TXEN4+
DNC (Note 5)
73
TXEN4–
DNC (Note 5)
I
34
RXD4+
74
RXD4_0–
RXD4–
I
35
DNC (Note 5)
75
RXD4_1–
DNC (Note 5)
I
36
DNC (Note 5)
76
CRS_DV4–
DNC (Note 5)
N/A
37
DNC (Note 5)
DNC (Note 5)
77
DNC (Note 5)
DNC (Note 5)
O
38
GND
GND
78
GND
GND
Note 6
39
MDIO (Note 6)
MDIO (Note 6)
79
MDC (Note 6)
MDC (Note 6)
O
40
3VCC
3VCC
80
3VCC
3VCC
1
SMII
Output. Low for SMII, high for RMII. Disregard this signal for single-mode DUTs.
2
BRDCON
Input. Active low, DUT connected flag. It should be tied to ground at the DUT.
3
R_CLK+/–
and
/–.
These two LVDS input pairs should be the output of 65LVDS31 drivers on the DUT. These signals must be
supplied to LAN-3150A via J2.
4
RESET
This low active output can be used as PHY hardware reset signal.
5
DNC
Do not connect.
6
MDIO
This signal is bidirectional.
MDC
This is an output signal.
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