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DSP56857 Fiches technique(PDF) 41 Page - Freescale Semiconductor, Inc

No de pièce DSP56857
Description  Digitial Signal Controller
PDF  662 Pages
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Fabricant  FREESCALE [Freescale Semiconductor, Inc]
Site Internet  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

DSP56857 Fiches technique(HTML) 41 Page - Freescale Semiconductor, Inc

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5685x Family Architectural Overview
5685X Overview, Rev. 4
Freescale Semiconductor
1-9
Figure 1-3. 56855 Functional Block Diagram
JTAG/
Enhanced
OnCE
Program Controller
and
Hardware Looping Unit
Data ALU
16 x 16 + 36
→ 36-Bit MAC
Three 16-bit Input Registers
Four 36-bit Accumulators
Address
Generation Unit
Bit
Manipulation
Unit
16-Bit
56800E Core
XTAL
EXTAL
Interrupt
Controller
Quad
Timer
or
GPIOG
4
CLKO
External Address
Bus Switch
External Bus
Interface Unit
RESET
IRQA
IRQB
VDD
VSSIO
VDDA VSSA
External Data
Bus Switch
Bus Control
WR Enable
RD Enable
CS0-CS3[3:0] or
A0-20 [20:0]
MODEA-C or
D0-D15 [15:0]
6
Program Memory
24,576 x 16 SRAM
Boot ROM
1024 x 16 ROM
Data Memory
24,576 x 16 SRAM
PDB
PDB
XAB1
XAB2
XDB2
CDBR
2 SCI
or
GPIOE
IPBus Bridge (IPBB)
3
(GPIOH0-H2)
4
10
VDDIO
10
Decoding
Peripherals
System
Bus
Control
Memory
PAB
PAB
CDBW
CDBR
CDBW
VSS
4
GPIOA0-GPIOA3[3:0]
6
ESSI0
or
GPIOC
RSTO
DMA
6 channel
POR
Integration
Module
System
COP/
Watch-
dog
Time
of
Day
Clock
Generator
OSC PLL
IPBus CLK
COP/TOD CLK
Core CLK



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