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參數(shù)資料
| 型號(hào)： | DSP1620 |
| 英文描述： | TVS 400W 6.0V BIDIRECT SMA |
| 中文描述： | 澄清，串行I /設(shè)備的DSP1620/27/28/29 O控制注冊(cè)說明 |
| 文件頁(yè)數(shù)： | 50/114頁(yè) |
| 文件大小： | 804K |
| 代理商： | DSP1620 |
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Preliminary Data Sheet
February 1997
DSP1628 Digital Signal Processor
48
Lucent Technologies Inc.
5 Software Architecture
(continued)
Special Function Instructions
All forms of the special function require one word of program memory and execute in one instruction cycle. (If PC
points to external memory, add programmed wait-states.)
aD = aS >> 16
}
aD = aS
—
Load destination accumulator from source accumulator
aD = –aS
—
2's complement
aD = ~aS
—
1's complement
aD = rnd(aS)
—
Round upper 20 bits of accumulator
aDh = aSh + 1 —
Increment upper half of accumulator (lower half cleared)
aD = aS + 1
—
Increment accumulator
aD = y
—
Load accumulator with 32-bit
y
register value with sign extend
aD = p
—
Load accumulator with 32-bit
p
register value with sign extend
The above special functions can be conditionally executed, as in:
if CON instruction
and with an event counter
ifc CON instruction
which means:
if CON is true then
c1 = c1 + 1
instruction
c2 = c1
else
c1 = c1 + 1
The above special function statements can be executed unconditionally by writing them directly, e.g.,
a0
=
a1
.
This function is not available for the DSP16A.
aD = aS >> 1
aD = aS >> 4
aD = aS >> 8
Arithmetic right shift (sign preserved) of 36-bit accumulators
aD = aS << 1
aD = aS << 4
aD = aS << 8
aD = aS << 16
}
Arithmetic left shift (sign not preserved) of the lower 32 bits of accumulators
(upper 4 bits are sign-bit-extended from bit 31 at the completion of the shift)
Table 19. Replacement Table for Special Function Instructions
Replace
aD
aS
CON
Value
Meaning
a0, a1
One of two DAU accumulators.
mi, pl, eq, ne, gt, le, lvs, lvc, mvs, mvc, c0ge, c0lt,
c1ge, c1lt, heads, tails, true, false, allt, allf,
somet, somef, oddp, evenp, mns1, nmns1,
npint, njint, lock, ebusy
See Table 21 for definitions of mnemonics.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DSP1628 | TVS 400W 60V BIDIRECT SMA |
| DSP16210 | TVS 400W 6.5V UNIDIRECT SMA |
| DSP1627 | TVS 400W 6.5V BIDIRECT SMA |
| DSP1629 | TVS 400W 64V UNIDIRECT SMA |
| DSP16410C | TVS 400W 7.0V UNIDIRECT SMA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DSP16210 | 制造商:AGERE 制造商全稱:AGERE 功能描述:DSP16210 Digital Signal Processor |
| DSP1627 | 制造商:AGERE 制造商全稱:AGERE 功能描述:DSP1627 Digital Signal Processor |
| 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 |
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