VSC6134
Datasheet
Figure 18. RS Encoder Block Diagram with the Data Inputs and Outputs
Codeword Generator
Coefficients
Parity Symbol Calculation
Parity Length
Codeword Length
Data_Out
Data_In
FStart_Out
I_PO
FStart_In
Count and Control
Data_Valid_In
Data_Valid_Out
Clk
Resn
The following table lists the descriptions of the input and output ports of the Reed Solomon encoder.
Unless otherwise stated, all signals are active high and bit 0 is the least significant bit.
Table 36. RS Encoder Block I/O Description
Name
DATA_IN[7:0]
Direction
IN
Function
Input data symbol, 8-bits wide
Start of new input block
FRAME_START_IN
DATA_VALID_IN
IN
IN
Signifies that the signal at the Data_In port contains valid
information
CLK
IN
IN
Symbol rate clock, rising edge active
Asynchronous master reset, active high
Start of new output block
RESN
FRAME_START_OUT
DATA_VALID_OUT
OUT
OUT
Signifies that the signal at the Data_Out port contains valid
information
DATA_OUT[7:0]
I_PO
OUT
OUT
Output data symbol, 8-bits wide
Information/parity out is low when DATA_OUT reflects parity and
high when DATA_OUT reflects data.
101 of 438
VMDS-10185 Revision 4.0
July 2006
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
