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參數(shù)資料
| 型號： | FIR Filters |
| 廠商： | Altera Corporation |
| 英文描述： | FIR Compiler(有限的脈沖響應(yīng)濾波器) |
| 中文描述： | 飛行編譯器（有限的脈沖響應(yīng)濾波器） |
| 文件頁數(shù)： | 17/19頁 |
| 文件大?。?/td> | 323K |
| 代理商： | FIR FILTERS |
Altera Corporation
17
FS 1: FIR Filters
Parameters
Parameters for the
fir_3x3
function design are provided in
Table 6
.
Ports
Input and output ports for the
fir_3x3
function are provided in
Table 7
.
Block Diagram
Figure 14
shows the block diagram of the
fir_3x3
video filter. One
input to the vector multiplier is zero and the other three inputs are
the sums of the symmetric taps. The
n
-bit value from pixel 1 is
stuffed with two leading zeroes so that all inputs to the parallel
vector multiplier are
n
+ 2 bits wide.
Table 6. fir_3x3 Parameters
Name
Default
Value
Description
width
8
Integers
Integers
"yes"
or
"no"
Integers
Input word width (in bits)
Coefficient precision
Symmetrical/antisymmetrical
Output precision (in bits)
Pipelined/non-pipelined
rom_p
8
"
yes
"
width+2+rom_p
pipelined
output_p
internal_p
= output_p
= output_p
Table 7. Input & Output Ports
Port Type
Name
Description
Input
Input
Input
Output
xin[3..1][8..1]
Data input
Clock input
Asynchronous Clear
Data output
clk
aclr
y[output_p..1]
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