Altera Reed-Solomon II MegaCore Function - Manual (Page 21)

Figure 3-6: Encoder Timing—Two Channels
For a two-channel codeword, the encoder asserts the
in_startofpacket
and
in_endofpacket
signals for
two consecutive cycles.
clk_clk
reset_reset_n
in_valid
in_startofpacket
in_endofpacket
in_data[7:0]
in_channel
in_ready
out_valid
out_startofpacket
out_endofpacket
out_data[7:0]
out_channel
out_ready
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 217218 219 220 221 222 223 224 225 226 227 228 229 230 231 232
0 1 2 3 4 5 6 7 8 9 10 11 12 13 215 216 217218 219 220 221 222 163 211 153 119 68 157 153239 209 70 223 224 225 226 227 228 229 230
223
Figure 3-7: Decoder Timing—Two Channels
For a two-channel codeword, the decoder asserts the
in_startofpacket
and
in_endofpacket
signals for
two consecutive cycles.
clk_clk
reset_reset_n
in_valid
in_startofpacket
in_endofpacket
in_data[7:0]
in_channel
in_ready
out_valid
out_startofpacket
out_endofpacket
out_data[7:0]
out_channel
out_ready
out_error
0 1 2 3 4 5 6 19 124 84 44 237174 55 192 193194195 196197 198 153154 155156 157158 159160161162 163 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101
0 X 1 2 3 4 5 6 19 124 84 44 237 174 55 192193 194195 196 197198 199200 1
status_error_value[7:0] 0 0 0 0
status_num_error_symbol[3:0] 0 0 8 9 0
status_num_error_bit[6:0] 0 0 0
Reed-Solomon II IP Core Parameters
Table 3-2: Parameters
Parameter Legal Values Default Value Description
Reed-Solomon Encoder or Decoder Encoder Specifies an encoder or a decoder.
Number of
channels
1 to 16 1 Specifies the number of input channels (C)
to process. The channel pattern is fixed.
UG-01090
2015.05.01
Reed-Solomon II IP Core Parameters 3-5
Reed-Solomon II IP Core Functional Description Altera Corporation
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