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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 13/19頁(yè) |
| 文件大小： | 323K |
| 代理商： | FIR FILTERS |
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Altera Corporation
13
FS 1: FIR Filters
Function Prototype
The AHDL Function Prototype for the
fir_16ts
function is shown
below and is the same for all other serial FIR filters in the Altera DSP
Design Kit:
FUNCTION fir_16ts (xin[width..1] clk, aclr)
WITH (width, pipelined, sym, rom_p, output_p)
RETURNS (y[output_p..1]);
Parameters
Parameters for the serial FIR filter functions are provided in
Table 4
.
In the default value for the
output_p
parameter, the constant
blocks
refers to the number of 8-tap blocks in the filter.
Ports
Input and output ports for the serial FIR filter functions are provided
in
Table 5
.
Table 4. Serial FIR Filter Parameters
Name
Default
Value
Description
width
8
Integers
Integers
"
yes
" or "
no
"
"
sym
" or "
anti
"
Integers
Input word width (in bits)
Coefficient precision
Pipelined/non-pipelined
Symmetrical/antisymmetrical
Output precision (in bits)
rom_p
8
"
yes
"
"
sym
"
pipelined
sym
output_p
width+blocks+rom_p
Table 5. Input & Output Ports
Port Type
Name
Description
Input
Input
Input
Output
xin[width..1]
Data input
Clock input
Asynchronous Clear
Data output
clk
aclr
y[output_p..1]
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