參數(shù)資料
型號： DSP1627
英文描述： TVS 400W 6.5V BIDIRECT SMA
中文描述： DSP1627數(shù)字信號處理器
文件頁數(shù)： 41/154頁
文件大小： 2365K
代理商： DSP1627
Data Sheet
March 2000
DSP1627 Digital Signal Processor
Lucent Technologies Inc.
41
5 Software Architecture
(continued)
F3 ALU Instructions
These instructions are implemented in the DSP1600 core. They allow accumulator two-operand operations with ei-
ther another accumulator, the p register, or a 16-bit immediate operand (IM16). The result is placed in a destination
accumulator that can be independently specified. All operations are done with the full 36 bits. For the accumulator
with accumulator operations, both inputs are 36 bits. For the accumulator with p register operations, the p register
is sign-extended into bits 35—32 before the operation. For the accumulator high with immediate operations, the im-
mediate is sign-extended into bits 35—32 and the lower bits 15—0 are filled with zeros, except for the AND opera-
tion, for which they are filled with ones. These conventions allow the user to do operations with 32-bit immediates
by programming two consecutive 16-bit immediate operations. The F3 ALU instructions are shown in Table 18.
Note: The F3 ALU instructions that do not have a destination accumulator are used to set flags for conditional
operations, i.e., bit test operations.
If PC points to external memory, add programmed wait-states.
The h and l are required notation in these instructions.
F4 BMU Instructions
The bit manipulation unit in the DSP1627 provides a set of efficient bit manipulation operations on accumulators. It
contains four auxiliary registers, ar<0—3> (arM, M = 0, 1, 2, 3), two alternate accumulators (aa0—aa1), which can
be shuffled with the working set, and four flags (oddp, evenp, mns1, and nmns1). The flags are testable by condi-
tional instructions and can be read and written via bits 4—7 of the alf register. The BMU also sets the LMI, LEQ,
LLV, and LMV flags in the psw register.
I
LMI = 1 if negative (i.e., bit 35 = 1)
I
LEQ = 1 if zero (i.e., bits 35—0 are 0)
I
LLV = 1 if (a) 36-bit overflow, or if (b) illegal shift on field width/offset condition
I
LMV = 1 if bits 31—35 are not the same (32-bit overflow)
The BMU instructions and cycle times follow. (If PC points to external memory, add programmed wait-states.) All
BMU instructions require 1 word of program memory unless otherwise noted. Please refer to the DSP1611/17/18/
27 Digital Signal Processor Information Manual or further discussion of the BMU instructions.
Table 18. F3 ALU Instructions
F3 ALU Instructions
Cachable (One-Cycle)
aD = aS + aT
aD = aS – aT
aD = aS & aT
aD = aS | aT
aD =aS ^ aT
aS – aT
aS & aT
aD = aS + p
aD = aS – p
aD = aS & p
aD = aS | p
aD = aS ^ p
aS – p
aS & p
Not Cachable (Two-Cycle)
aD = aSh + IM16
aD = aSh – IM16
aD = aSh & IM16
aD = aSh | IM16
aD = aSh ^ IM16
aSh – IM16
aSh & IM16
aD = aSl + IM16
aD = aSl – IM16
aD = aSl & IM16
aD = aSl | IM16
aD = aSl ^ IM16
aSl – IM16
aSl & IM16
相關PDF資料
PDF描述
DSP1629 TVS 400W 64V UNIDIRECT SMA
DSP16410C TVS 400W 7.0V UNIDIRECT SMA
DSP16410 16-bit fixed point DSP with Flash
DSP25-16AR Phase-leg Rectifier Diode
DSP25 Phase-leg Rectifier Diode
相關代理商/技術參數(shù)
參數(shù)描述
DSP1627F32K10IR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP|16-BIT|CMOS|QFP|100PIN|PLASTIC
DSP1627F32K10IT 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP|16-BIT|CMOS|QFP|100PIN|PLASTIC
DSP1627F32K11I 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Digital Signal Processor
DSP1627F32K11IR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP|16-BIT|CMOS|QFP|100PIN|PLASTIC
DSP1627F32K11IT 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP|16-BIT|CMOS|QFP|100PIN|PLASTIC
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*