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參數(shù)資料
| 型號： | PDSP1601 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | ALU and Barrel Shifter |
| 中文描述： | ALU和桶式移位器 |
| 文件頁數(shù)： | 11/18頁 |
| 文件大?。?/td> | 142K |
| 代理商： | PDSP1601 |
PDSP1601 MC
11
Function
On the rising edge of CLK at the end of the cycle in which this instruction is executing, the
R1 register will be loaded with the data present on the SV port. The input to the Barrel
Shifter will be passed onto the output unshifted.
On the rising edge of CLK at the end of the cycle in which this instruction is executing, the
R2 register will be loaded with the data present on the SV port. The input to the Barrel
Shifter will be passed onto the output unshifted.
The 16 bit input to the Barrel Shifter is right shifted by the number of places indicated by
the magnitude of the four bit number present in the SV register. The LSBs are discarded,
and the vacant MSBs are filled with duplicates of the original MSB. (Sign Extension).
The 16 bit input to the Barrel Shifter is right shifted by the number of places indicated by
the magnitude of the four bit number resident within the R1 register. The LSBs are
discarded, and the vacant MSBs are filled with duplicates of the original MSB.
(Sign Extension).
The 16 bit input to the Barrel Shifter is right shifted by the number of places indicated by
the magnitude of the four bit number resident within the R2 register. The LSBs are
discarded, and the vacant MSBs are filled with duplicates of the original MSB.
(Sign Extension).
The 16 bit input to the Barrel Shifter is left shifted by the number of places indicated by the
magnitude of the four bit number output from the Priority Encoder. This value is also output
on the SV port (provided
SVOE
is low).
The effect of this operation is to left shift the input by the necessary amount
(max 15 places) to result in the MSB and the next most significant bit being different. This
has the effect of eliminating unnecessary Sign Bits, and hence Normalising the input data.
The MSBs shifted out to the left are discarded, and the vacant LSBs on the right are filled
with zeros.
The 16 bit input to the Barrel Shifter is left shifted by the number of places indicated by the
magnitude of the four bit number output from the Priority Encoder. This value is also loaded
into the R1 register at the end of the cycle, and is output on the SV port (provided
SVOE
is low).
The effect of this operation is to left shift the input by the necessary amount
(max 15 places) to result in the MSB and the next most significant bit being different. This
has the effect of eliminating unnecessary Sign Bits, and hence Normalising the input data.
The MSBs shifted out to the left are discarded, and the vacant LSBs on the right are filled
with zeros.
The 16 bit input to the Barrel Shifter is left shifted by the number of places indicated by the
magnitude of the four bit number output from the Priority Encoder. This value is also loaded
into the R2 register at the end of the cycle, and is output on the SV port (provided
SVOE
is low).
The effect of this operation is to left shift the input by the necessary amount
(max 15 places) to result in the MSB and the next most significant bit being different. This
has the effect of eliminating unnecessary Sign Bits, and hence Normalising the input data.
The MSBs shifted out to the left are discarded, and the vacant LSBs on the right are filled
with zeros.
Op Code
<8>
<9>
<A>
<B>
<C>
<D>
<E>
<F>
Mnemonic
LR1SV
LR2SV
ASRSV
ASRR1
ASRR2
NRMXX
NRMR1
NRMR2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PDSP1601A | ALU and Barrel Shifter |
| PDSP1601GC1R | ALU and Barrel Shifter |
| PDSP1601MC | ALU and Barrel Shifter |
| PDSP1601MCGGCR | ALU and Barrel Shifter |
| PDSP1601A | ALU and Barrel Shifter(高性能16位算術(shù)邏輯單元（帶一個獨立片上16位柱形移位器）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PDSP1601_96 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ALU and Barrel Shifter |
| PDSP1601_98 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:ALU and Barrel Shifter |
| PDSP1601A | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ALU and Barrel Shifter |
| PDSP1601A/B0/AC | 制造商:Microsemi Corporation 功能描述:20MHZ AUGMENTED ARITH LOGIC UNIT - Bulk 制造商:Zarlink Semiconductor Inc 功能描述:20MHZ AUGMENTED ARITH LOGIC UNIT - Bulk |
| PDSP1601A0/AC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Fixed Point ALU |
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