IPR-ED8B10B Altera, IPR-ED8B10B Datasheet - Page 2

• Manufacturer Part Number: IPR-ED8B10B
• Description: IP CORE Renewal Of IP-ED8B10B
• Manufacturer: Altera
• Type: MegaCorer

Specifications of IPR-ED8B10B

• Software Application: IP CORE, Interface And Protocols, COMMUNICATION
• Supported Families: Arria GX, Cyclone, HardCopy, Stratix
• Core Architecture: FPGA
• Core Sub-architecture: Arria, Cyclone, Stratix
• Rohs Compliant: NA
• Function: Encoder/Decoder, 8b/10b for Gigabit Ethernet and Fibre Channel
• License: Renewal License
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

8b10b Encoder/Decoder MegaCore Function (ED8B10B) Data Sheet
Figure 1. 8b10b Conversion
Character
Codes
2
MSB sent last
9
j
In bit serial transmission, the LSB is usually transmitted first, while the
MSB is usually transmitted last.
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 Dx.y, and the special control characters are named
Kx.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.
H
7
h
8
G
6
g
7
5
F
8b10b
6
f
E
4
5
i
Conversion
3
D
e
4
d
3
C
2
c
2
1
B
b
1
A
LSB sent first
0
0
a
Altera Corporation