Altera Integer Arithmetic IP User Manual download pdf (Page 51)

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Table 5-12: Design Example 2: Arrangement of Parity Bits and Data Bits in Code Word 14F0

MSB LSB

P5* P4 P3 P2 P1 D7 D6 D5 D4 D3 D2 D1 D0

1 0 1 0 0 1 1 1 1 0 0 0 0

The ECC decoder decodes the code word based on the Hamming Code scheme. The following steps

describe the Hamming Code algorithm and explain how the ECC decoder decodes input code word

14F0 to generate output data F0:

UG-01063

2014.12.19

Understanding the Simulation Results

5-13

ALTECC (Error Correction Code: Encoder/Decoder)

Altera Corporation

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1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 156 157

101 Innovation Drive 1
San Jose, CA 95134 1
Contents 2
IP Cores Function Overview 6
Design Example Files 7
Using the Parameter Editor 9
UG-01063 10
2014.12.19 10
Legacy parameter 12
Upgrading IP Cores 13
Related Information 16
Quartus II 17
Design Flow 17
Gate-Level Simulation 17
RTL Simulation 17
Simulating Altera Designs 18
LPM_COUNTER (Counter) 19
LPM_DIVIDE (Divider) 26
LPM_MULT (Multiplier) 32
LPM_MULT Ports 34
LPM_MULT Parameters 35
Decoder) 39
ALTECC_ENCODER Features 40
Ports (ALTECC_ENCODER) 45
Ports (ALTECC_DECODER) 45
Parameters (ALTECC_ENCODER) 46
Parameters (ALTECC_DECODER) 46
ALTERA_MULT_ADD 54
ALTERA_MULT_ADD Parameters 65
Coefficient Multiplier) 74
ALTMULT_ACCUM 82
ALTMULT_ACCUM Ports 85
ALTMULT_ACCUM Parameters 87
Altera Corporation 101
Send Feedback 101
ALTMULT_ADD (Multiply-Adder) 102
ALTMULT_ADD 103
Features 104
Pre-adder 105
Pre-adder Input Mode 106
Pre-adder Square Mode 106
Pre-adder Constant Mode 107
Systolic Delay Register 108
Pre-load Constant 111
Double Accumulator 111
Verilog HDL Prototype 112
VHDL Component Declaration 112
VHDL LIBRARY_USE Declaration 113
ALTMULT_ADD Ports 113
ALTMULT_ADD Parameters 115
Parameter Name Type Requi 116
Description 116
Subscribe 138
Complex Multiplication 139
Canonical Representation 139
Conventional Representation 140
ALTMULT_COMPLEX Ports 143
ALTMULT_COMPLEX Parameters 143
ALTSQRT (Integer Square Root) 147
Parameters 149
PARALLEL_ADD (Parallel Adder) 151
Document Revision History 156
Date Version Changes 157

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