Altera FIR Compiler II MegaCore Function User Manual

Page 51

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background image

Figure 4-23: Correct Input Format (11 valid cycles, 9 invalid cycles)

areset

clk

xin_v[0]

xin_c[7:0]

xin_0[7:0]

xin_1[7:0]

xout_v[0]

xout_c[7:0]

xout_0[17:0]

xout_1[17:0]

xout_2[17:0]

xout_3[17:0]

xout_4[17:0]

xout_5[17:0]

xout_6[17:0]

xout_7[17:0]

xout_8[17:0]

xout_9[17:0]

xout_10[17:0]

1

0

1

1

2

3

4

5

6

7

8

9

10

11

4

1

2

3

4

5

6

7

12

13

14

15

16

17

18

19

20

21

22

15

12

13

14

15

16

17

18

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

8

16

6

12

0

24

32

18

24

0

40

48

30

36

0

56

64

42

48

0

72

80

54

60

0

88

96

66

72

0

104

112

78

84

0

120

128

90

96

0

136

144

102

108

0

152

160

114

120

0

168

176

126

132

0

Figure 4-24: Incorrect Input Format (11 valid cycles, 0 invalid cycles)If the number of invalid cycles is

less than 17, the output format is incorrect.

areset

clk

xin_v[0]

xin_c[7:0]

xin_0[7:0]

xin_1[7:0]

xout_v[0]

xout_c[7:0]

xout_0[17:0]

xout_1[17:0]

xout_2[17:0]

xout_3[17:0]

xout_4[17:0]

xout_5[17:0]

xout_6[17:0]

xout_7[17:0]

xout_8[17:0]

xout_9[17:0]

xout_10[17:0]

1 2

3 4 5

6 7

8 9 10 11 1 2

3 4 5

6 7 8

9 10 11

0

150 186 177 92 178 50 112 220 132 3 111 100 215 142

12 13 14 15 16 17 18 19 20 21 22 12 13 14 15 16 17 18 19 20 21 22

0

206 172 212 214 18 255 190 91 36 129 163 193 149 0

0

1

00 01 00 01 00 01 00 01 00 01

0

1 0 1

6

12 0

18

24 0

30

36 0

42

48 0

54

60 0

66

72 0

78

84 0

90

96 0

102

108 0

114

120 0

126

132 0

4-18

22 Channels with 11 Valid Cycles and 9 Invalid Cycles

UG-01072

2014.12.15

Altera Corporation

FIR II IP Core Functional Description

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