參數(shù)資料
型號(hào): D950-CORE
廠商: 意法半導(dǎo)體
元件分類: 數(shù)字信號(hào)處理
英文描述: 16-Bit Fixed Point Digital Signal Processor DSP Core
中文描述: 16位定點(diǎn)數(shù)字信號(hào)處理器DSP核
文件頁(yè)數(shù): 20/89頁(yè)
文件大小: 560K
代理商: D950-CORE
20/89
D950-Core
4.2 Address Calculation Unit (ACU)
4.2.1 Introduction
The D950-Core ACU includes two identical address generators (one for each data memory
space), each containing:
2 x 16-bit address registers
4 x 16-bit index registers
Adder for address register update
2 x 16-bit base and maximum address registers for modulo addressing. There
is dedicated logic for address comparison and calculation.
Figure 4.6
D950-Core Address Calculation Unit
In addition to these two address generators, the D950-Core ACU includes:
16-bit Stack Pointer (SPX) register for the X-memory space mapped stack
16-bit Stack Pointer (SPY) register for the Y-memory space mapped stack
6 bits of STA register for addressing modes
VR02017E
STA
6
AY0
AY1
SPY
BY
MY
MODULUS
LOGIC
16-bit ADDER
IY0
IY1
IY2
IY3
6
16
16
16
16
AX0
AX1
BX
MX
MODULUS
LOGIC
16-bit ADDER
IX0
IX1
IX2
IX3
SPX
XD
XA
YD
YA
5
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