
LVDS Channels
ProASIC3/E Starter Kit User’s Guide and Tutorial
21
The 4 differential pairs (consisting of 8 I/O pins) are terminated as shown in
using the color convention on the
first RJ45 connector (which we’ll call “CAT 5E Primary” for the purposes of differentiating it).
The 4 differential pairs (consisting of 8 I/O pins) are terminated as shown in
using the following color
convention on the second LVDS connector (which we’ll call “CAT 5E SECONDARY” for the purposes of
differentiating it).
Note:
The colors refer to the colors that will appear on the CAT 5E cable. The pin numbers correspond to the pin
numbers of an RJ-45 connector. Note that the CAT-5E PRIMARY connections are labeled for the purposes of
what is regarded as standard connections for CAT-5E on Ethernet-type connectors. The connections on the
CAT-5E SECONDARY are reversed so as to allow a standard patch cable to check loopback on these LVDS
signals.
A 1-foot CAT5 standard patch cable supplied with the PA3 evaluation kit can be used for LVDS signals loopback.
Table 2-5 · Color Convention on CAT 5E Primary
White/Orange
p1
TX1+
Orange
p2
TX1–
White/Green
p3
RX1+
Blue
p4
TX2–
White/Blue
p5
TX2+
Green
p6
RX1–
White/Brown
p7
RX2+
Brown
p8
RX2–
Notes:
1. TXn+ refers to positive signal of the transmit side of balanced signal Transmission.
2. TXn– refers to negative signal of the transmit side of balanced signal Transmission.
3. RXn+ refers to positive signal of the receive side of balanced signal Transmission.
4. RXn– refers to negative signal of the receive side of balanced signal Transmission.
Table 2-6 · Color Convention on CAT 5E Secondary
White/Orange
p1
RX3+
Orange
p2
RX3–
White/Green
p3
TX3+
Blue
p4
RX4–
White/Blue
p5
RX4+
Green
p6
TX3–
White/Brown
p7
TX4+
Brown
p8
TX4–
Содержание ProASIC3/E
Страница 1: ...ProASIC3 E Starter Kit User s Guide and Tutorial...
Страница 6: ......
Страница 8: ......
Страница 24: ......
Страница 28: ......
Страница 34: ......
Страница 66: ......
Страница 70: ......
Страница 80: ......
Страница 82: ...82 ProASIC3 E Starter Kit User s Guide and Tutorial Figure B 1 Top Level View of ProASIC3 E Evaluation Board...
Страница 94: ...94 ProASIC3 E Starter Kit User s Guide and Tutorial Figure C 1 Layer 1 Top Signal Layer...
Страница 95: ...ProASIC3 E Starter Kit User s Guide and Tutorial 95 Figure C 2 Layer 2 Ground Plane Blank...
Страница 96: ...96 ProASIC3 E Starter Kit User s Guide and Tutorial Figure C 3 Layer 3 Signal 3 LVDS Receive Layer...
Страница 97: ...ProASIC3 E Starter Kit User s Guide and Tutorial 97 Figure C 4 Layer 4 LVDS Transmit Layer...
Страница 98: ...98 ProASIC3 E Starter Kit User s Guide and Tutorial Figure C 5 Layer 5 Power Plane Blank...
Страница 99: ...ProASIC3 E Starter Kit User s Guide and Tutorial 99 Figure C 6 Layer 6 Bottom...
Страница 100: ...100 ProASIC3 E Starter Kit User s Guide and Tutorial Figure C 7 Layer 6 Bottom Viewed from Bottom...
Страница 105: ......