参数资料
| 型号： | IPR-ED8B10B |
| 厂商： | Altera |
| 文件页数： | 2/11页 |
| 文件大小： | 0K |
| 描述： | IP 8B10B ENCODER/DECODER RENEW |
| 标准包装： | 1 |
| 系列： | * |
| 类型： | MegaCore |
| 功能： | 编码器/解码器，8b/10b 用于千兆位以太网和光纤通道 |
| 许可证： | 续用许可证 |
8b10b Encoder/Decoder MegaCore Function (ED8B10B) Data Sheet
Figure 1. 8b10b Conversion
7
H
6
G
5
F
4
E
3
D
2
C
1
B
0
A
8b10b
Conversion
j
9
h
8
g
7
f
6
i
5
e
4
d
3
c
2
b
1
a
0
MSB sent last
LSB sent first
In bit serial transmission, the LSB is usually transmitted first, while the
MSB is usually transmitted last.
Character
Codes
2
In addition to 256 data characters, the 8b/10b code defines twelve out-of-
band indicators, also called special control characters. The 256 data
characters are named D x.y , and the special control characters are named
K x.y . The x value corresponds to the five-bit group, and the y value to the
three-bit group.
The special control characters indicate, for example, whether the data is
idle, test data, or data delimiters. In applications where encoded
characters are transmitted bit-serially, the comma character (K28.5) is
usually used for alignment purposes as its 10-bit code is guaranteed not to
occur elsewhere in the encoded bit stream, except after K28.7 which is
normally only sent during diagnostic.
Altera Corporation
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