RSDEC-DBLK-XM-U3 Lattice, RSDEC-DBLK-XM-U3 Datasheet - Page 20

• Manufacturer Part Number: RSDEC-DBLK-XM-U3
• Description: Encoders, Decoders, Multiplexers & Demultiplexers Dynamic Block Reed Solomon Decoder
• Manufacturer: Lattice

Specifications of RSDEC-DBLK-XM-U3

• Factory Pack Quantity: 1

IPUG52_01.6, December 2010
The IPexpress™ tool is used to create IP and architectural modules in the Diamond and ispLEVER software. Refer
to
The RS Decoder IP core Configuration GUI allows the user to create a custom configuration or to select one of the
standard configurations: OC-192, CCSDS, DVB, ATSC, IEEE 802.16-2004 WirelessMAN-SCa/OFDM and IEEE
802.16-2004 WirelessMAN-SC.
core.
“IP Core Generation” on page 24
Table 3-1. User Configurable Parameters
Core Configuration
Core configuration
Connect reset port to GSR
RS Parameters
wsymb
fpoly
gstart
rootspace
Check Symbols
Variable check symbols
Number of check symbols
Max. number of check symbols
Block Size Type
Block size type
Block size(n)
Information symbols(k)
Puncturing
Number of puncture patterns
Puncture pattern file
Decoding Mode
Decoding mode
Memory Type
Memory type
Optional Ports
ce
sr
errcnt
ddel
fail
erscnt
Parameter
Table 3-1
for a description on how to generate the IP.
Variable} if Variable check symbols is not checked. {Constant}
Edit field to enter the file name directly or indirectly by using
1 - (n-k) when Block size is Constant. 1 - (Number of check
Custom, OC-192, CCSDS, DVB, ATSC, IEEE 802.16-2004
Variable} if Variable check symbols is checked. {Constant,
provides the list of user configurable parameters for the RS Decoder IP
4 - ((2
4 - ((2
if wsymb is 3 and Decoding mode is Erasure.
5 - ((2
symbols) when Block size is Variable.
wsymb
wsymb
{Automatic, Block, Distributed}
wsymb
SCa, IEEE 802.16-2004 SC
{Error, Erasure, Puncturing}
)-2). Maximum value is limited to 256.
)-2). Maximum value is limited to 128.
20 Dynamic Block Reed-Solomon Decoder User’s Guide
)-1) Default value is ((2
the browse button.
Range/Options
3 - 12 bits
0 - 65535
1 - 65535
5 - 8191
1 - (n-4)
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Parameter Settings
wsymb
)-1)
Automatic
Constant
OC-192
Default
8 bits
Error
285
255
239
Yes
Yes
Yes
No
No
No
No
16
32
0
1
1
Chapter 3: