參數(shù)資料
型號： AT75C
英文描述： AT75C DSP Subsystem [Updated . 171 Pages] The AT75C DSP subsystem is a fully autonomous DSP-based computation block. It is built around a 16-bit. fixed-point. industry standard OakDSPCore. Additionally. the DSP subsystem embeds all elements necessary to run complex DSP algorithms independently.
中文描述： AT75C DSP子系統(tǒng)[更新。 171頁]的AT75C DSP子系統(tǒng)是一個完全獨立的基于DSP的計算塊。這是圍繞一個16位。定點。行業(yè)標(biāo)準(zhǔn)OakDSPCore。此外。嵌入了DSP子系統(tǒng)的所有元素需要運(yùn)行復(fù)雜的DSP算法獨立。
文件頁數(shù)： 4/171頁
文件大?。?/td> 1288K
代理商： AT75C
101
AT75C DSP Subsystem
1368C–INTAP–08/02
REP – Repeat Next Instruction
Syntax:
rep operand
Operation:
Begins a single-word instruction loop that is to be repeated operand + 1
times. The repetition range is from 1 to 65536.
The repeat mechanism is interruptible and the interrupt service routine
can use another repeat (i.e., nested repeat). The nested repeat is unin-
terruptible.
Operands:
#unsigned short immediate
REG
Affected Flags:
Cycles:
1
Words:
1
Notes:
Interrupts are not accepted within
rep loops in the following places:
Between the
rep instruction and the first execution of the repeated
instruction
Between the last instruction repetition and the next sequential instruc-
tion
When using an unsigned short immediate operand, the number of repe-
titions is between 1 and 256. When transferring the #unsigned short
immediate number into the lc register, it is copied to the low-order 8 bits
of lc. The higher-order bits are zero-extended.
The REG cannot be aX, bX, p.
The instructions that break the pipeline cannot be repeated: brr; callr;
trap; ret; reti; retid; rets; rep; calla; mov operand, pc; pop pc; movp (aX),
pc; mov repc, ab.
Rep can be performed inside a block-repeat (bkrep).
Z
M
NVCE
L
R
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