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D950-CORE 데이터시트(PDF) 67 Page - STMicroelectronics

부품명 D950-CORE
상세설명  16-Bit Fixed Point Digital Signal Processor DSP Core
PDF  89 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

D950-CORE 데이터시트(HTML) 67 Page - STMicroelectronics

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D950-Core
7.2
BUS SWITCH UNIT (BSU)
7.2.1 Introduction
The D950-Core Bus Switch Unit (BSU) is a multiplexed interface between the D950-Core and
external memory. It enables extension of X, Y and I memories off-chip, allowing multiple
possible configurations for an AS-DSP built around the D950-Core. The figure below shows
the layout of the D950-Core BSU.
Figure 7.1
D950-Core Bus Switch Unit
EA
ED
ID
IA
YD
YA
XA
XD
D950-CORE
BUS
SWITCH
UNIT
DTACK
AS-DSP
BSU_CLK
RESET
IRD/XRD/YRD
IWR/XWR/YWR
IBS/XBS/YBS
16
16
16
16
INTERNAL MEMORIES
& PERIPHERALS
16
16
16
16
P
MEM.
X
MEM.
Y
MEM.
2
2
2
DTACKin
EYRD/DS
EYWR/RD
EIRD/DS
EIWR/RD
EXRD/DS
EXWR/RD
VR02020A
INTERNAL MEMORIES
& PERIPHERALS
INTERNAL MEMORIES
& PERIPHERALS
DEID/DEXD/DEYD
IID/IXD/IYD
IDT_EN
8



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