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DSP56857 bảng dữ liệu(PDF) 131 Page - Freescale Semiconductor, Inc

tên linh kiện DSP56857
Giải thích chi tiết về linh kiện  Digitial Signal Controller
PDF  662 Pages
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nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

DSP56857 bảng dữ liệu(HTML) 131 Page - Freescale Semiconductor, Inc

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Block Diagram
External Memory Interface (EMI), Rev. 4
Freescale Semiconductor
5-5
5.4 Block Diagram
A simplified block diagram illustrating the connections to the EMI is illustrated in Figure 5-1.
The left side of the figure shows connections to the 56800E core buses and clocks. All available
external EMI signals are shown on the right side of the figure. In some cases, pin count
restrictions may limit the number of EMI signals brought out of the package.
Figure 5-1. EMI Block Diagram
XAB1[23:0]
CBW[31:0]
CDBR_M[31:0]
PRIMARY DATA ACCESS
SECONDARY DATA READ
XAB2[23:0]
XDB2_M[15:0]
PROGRAM MEMORY ACCESS
PAB[20:0]
CDBW[15:0]
PDB_M[31:0]
XAB1[23:0]
CDBW[31:0]
CDBR_M[31:0]
XAB2[23:0]
XDB2_m[15:0]
PAB[20:0]
PDB_M[31:0]
C7WAITST
HOLDOFF
CLK
A[23:0]
D[16:0]
CS[7:0]
RD
WR
FLASH_SECURITY_EN
OPTIONAL
EMI
56800E CORE
CLOCK
GEN.



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