參數(shù)資料
型號： AT75C1010
英文描述： AT75C1010 Telephony Software Module [Updated 11/01. 29 Pages] This software module runs on the OakDSPCore subsystem of the AT75 series SIAP. expanding its capabilities and making the processor flexible and east to integrate into most operating systems.
中文描述： AT75C1010電話軟件模塊[更新11/01。 29頁]本軟件模塊上運行的AT75系列OakDSPCore子系統(tǒng)統(tǒng)計所。擴大其能力，使處理器的靈活和東部地區(qū)融入大多數(shù)操作系統(tǒng)。
文件頁數(shù)： 143/171頁
文件大?。?/td> 1288K
代理商： AT75C1010
73
AT75C DSP Subsystem
1368C–INTAP–08/02
MACUU – Multiply Unsigned by Unsigned and Accumulate
Previous Product
Syntax:
macuu operand1, operand2, aX
Operation:
aX + shifted p –> aX
operand1 –> y
operand2 –> x
unsigned y unsigned x –> p
Operands:
y, (rN)
y, REG
(rJ), (rI)
(rN), ##long immediate
Affected Flags:
Cycles:
1
2 when the second operand is ##long immediate
Words:
1
2 when the second operand is ##long immediate
Notes:
Shifted p means that the previous product is sign-extended into 36 bits,
then shifted as defined by the PS field of status register st1.
y –> y means that y retains its value.
The REG cannot be aX, bX, p.
The multiplication in
macus (rJ), (rI), aX is between X-RAM and Y-RAM
only, where rJ points to Y-RAM and rI points to X-RAM.
After using this instruction, the P register cannot be reconstructed. Dur-
ing an interrupt service routine that uses the P register, the P register
should be saved before it is used, and restored before returning.
It is also recommended to disable the interrupts before a
macuu instruc-
tion and to enable the interrupts after the instruction using the result of
the unsigned product.
The instruction that uses the P register or the shifted P register as a
source operand after a macuu instruction uses the unsigned result in
the P register is zero extended into 36 bits and then shifted as defined
by the PS field. This behavior will be in effect until a new signed product
is generated or a new value is written in ph.
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NVCE
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AT75C1212 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AT75C1212 G.723.1 Voice Processing and Multi-way Conferencing Software Module [Updated 7/02. 41 Pages] This software module provides G.723.1 voice processing and multi-way conferencing. including algorithms for silence compression. tone generation. DTMF detection and echo cancellation that run on the OakDSPCore subsystem of the AT75C SIAP. All these algorithms have a number of parameters that can be programmed at run time.
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