RSENC-DBLK-P2-U4 Lattice, RSENC-DBLK-P2-U4 Datasheet - Page 18

• Manufacturer Part Number: RSENC-DBLK-P2-U4
• Description: Encoders, Decoders, Multiplexers & Demultiplexers Dynamic Block Reed Solomon Encoder
• Manufacturer: Lattice

Specifications of RSENC-DBLK-P2-U4

• Factory Pack Quantity: 1

Lattice Semiconductor
Parameter Settings
Reed-Solomon Encoder Configuration GUI
Figure 3-1
shows the contents of the Reed-Solomon Encoder IP core Configuration GUI.
Figure 3-1. Reed-Solomon Encoder IP core Configuration GUI
Core Configuration
This parameter selects between custom and pre-defined standard configurations. The Parameter Settings of the
Standard Configurations table in the Dynamic Block Reed-Solomon Encoder User’s Guide defines the fixed param-
eter values for different standard configurations.
RS Parameters
wsymb
This parameter specifies the symbol width.
fpoly
This parameter specifies the decimal value of the field polynomial.
Table 2-1 on page 12
defines the default field
polynomial parameter values for different symbol widths.
gstart
This parameter specifies the offset value of the generator polynomial. The starting value for the first root of the gen-
erator polynomial is calculated as rootspace * gstart.
rootspace
This parameter specifies root spacing of the generator polynomial. The value of rootspace must satisfy the follow-
ing equation: GCD(rootspace, 2wsymb-1) = 1. GCD is Greatest Common Divisor.
IPUG40_03.6, August 2010
18 Dynamic Block Reed-Solomon Encoder User’s Guide