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PDF 56853 Data sheet ( Hoja de datos )
| Número de pieza | 56853 | |
| Descripción | 16-bit Digital Signal Controllers | |
| Fabricantes | Freescale Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 56853 (archivo pdf) en la parte inferior de esta página. Total 60 Páginas | ||
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56853
Data Sheet
Technical Data
56800E
16-bit Digital Signal Controllers
www.DataSheet4U.com
DSP56853
Rev. 6
01/2007
freescale.com
1 page  
56853 Description
• Watchdog Timer
• JTAG/Enhanced On-Chip Emulation (OnCE) for unobtrusive, real-time debugging
• Six (6) independent channels of DMA
• 8-bit Parallel Host Interface*
• Time-of-Day (TOD)
• 128 LQFP package
• Up to 41 GPIO
* Each peripheral I/O can be used alternately as a General Purpose I/O if not needed
1.1.4 Energy Information
• Fabricated in high-density CMOS with 3.3V, TTL-compatible digital inputs
• Wait and Stop modes available
1.2 56853 Description
The 56853 is a member of the 56800E core-based family of controllers. It combines, on a single chip, the
processing power of a Digital Signal Processor (DSP) and the functionality of a microcontroller with a
flexible set of peripherals to create an extremely cost-effective solution. Because of its low cost,
configuration flexibility, and compact program code, the 56853 is well-suited for many applications. The
56853 includes many peripherals that are especially useful for low-end Internet appliance applications
and low-end client applications such as telephony; portable devices; Internet audio and point-of-sale
systems, such as noise suppression; ID tag readers; sonic/subsonic detectors; security access devices;
remote metering; sonic alarms.
The 56800E core is based on a Harvard-style architecture consisting of three execution units operating in
parallel, allowing as many as six operations per instruction cycle. The microprocessor-style programming
model and optimized instruction set allow straightforward generation of efficient, compact DSP and
control code. The instruction set is also highly efficient for C Compilers, enabling rapid development of
optimized control applications.
The 56853 supports program execution from either internal or external memories. Two data operands can
be accessed from the on-chip Data RAM per instruction cycle. The 56853 also provides two external
dedicated interrupt lines, and up to 41 General Purpose Input/Output (GPIO) lines, depending on
peripheral configuration.
The 56853 controller includes 12K words of Program RAM, 4K words of Data RAM, and 1K words of
Boot ROM. It also supports program execution from external memory. The 56800 core can access two data
operands from the on-chip Data RAM per instruction cycle.
This controller also provides a full set of standard programmable peripherals that include an 8-bit parallel
Host Interface, Enhanced Synchronous Serial Interface (ESSI), one Serial Peripheral Interface (SPI), the
option to select a second SPI or two Serial Communications Interfaces (SCIs), and Quad Timer. The Host
Interface, ESSI, SPI, SCI, four chip selects and quad timer can be used as General Purpose Input/Outputs
(GPIOs) if its primary function is not required.
Freescale Semiconductor
56853 Technical Data, Rev. 6
5
5 Page 
Introduction
Table 3-1. 56853 Signal and Package Information for the 128-pin LQFP (Continued)
Pin No.
5
18
41
55
61
72
91
92
100
114
124
6
19
42
56
62
74
93
102
115
125
22
23
Signal Name
VDDIO
VDDIO
VDDIO
VDDIO
VDDIO
VDDIO
VDDIO
VDDIO
VDDIO
VDDIO
VDDIO
VSSIO
VSSIO
VSSIO
VSSIO
VSSIO
VSSIO
VSSIO
VSSIO
VSSIO
VSSIO
VDDA
VSSA
Type
VDDIO
Description
Power (VDDIO)—These pins provide power for all I/O and ESD
structures of the chip, and should all be attached to VDDIO (3.3V).
VSSIO
Ground (VSSIO)—These pins provide grounding for all I/O and ESD
structures of the chip and should all be attached to VSS.
VDDA
VSSA
Analog Power (VDDA)—These pins supply an analog power source.
Analog Ground (VSSA)—This pin supplies an analog ground.
Freescale Semiconductor
56853 Technical Data, Rev. 6
11
11 Page | ||
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