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參數(shù)資料
| 型號： | NS32FX16-15 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | FILM/M CAPACITANCE=0.001 VOLT=630 |
| 中文描述： | 影像/信號處理器 |
| 文件頁數(shù)： | 6/88頁 |
| 文件大?。?/td> | 902K |
| 代理商： | NS32FX16-15 |
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1.0 Product Introduction
The NS32FX16 is a high speed CMOS microprocessor in
the Series 32000/EP family.
It includes two main execution units: the NS32CG16 com-
patible CPU core and the DSP Module. The CPU core is
designed for general purpose computations and system
control functions. The DSP Module is tuned to perform the
DSP primitives needed in Voice Band Modems. The
NS32FX16 also incorporates a 384-byte RAM Array as a
shared resource for both the CPU core and the DSP Mod-
ule.
The NS32FX16 is software-compatible with all other CPUs
in the family.
The device incorporates all of the Series 32000 advanced
architectural features, with the exception of the virtual mem-
ory capability.
Brief descriptions of the NS32FX16 features that are shared
with other members of the family are provided below:
Powerful Addressing Modes.
Nine addressing modes
available to all instructions are included to access data
structures efficiently.
Data Types.
The architecture provides for numerous data
types, such as byte, word, doubleword, and BCD, which may
be arranged into a wide variety of data structures.
Symmetric Instruction Set.
While avoiding special case
instructions that compilers can’t use, the Series 32000 fami-
ly incorporates powerful instructions for control operations,
such as array indexing and external procedure calls, which
save considerable space and time for compiled code.
Memory-to-Memory Operations.
The Series 32000 CPUs
represent two-address machines. This means that each op-
erand can be referenced by any one of the addressing
modes provided.
This
memory locations to be treated as registers for all useful
operations. This is important for temporary operands as well
as for context switching.
powerful
memory-to-memory
architecture
permits
Large, Uniform Addressing.
The NS32FX16 has 24-bit ad-
dress pointers that can address up to 16 megabytes without
any segmentation; this addressing scheme provides flexible
memory management without add-on expense.
Modular Software Support.
Any software package for the
Series 32000 architecture can be developed independent of
all other packages, without regard to individual addressing.
In addition, ROM code is totally relocatable and easy to
access, which allows a significant reduction in hardware and
software cost.
Software Processor Concept.
The Series 32000 architec-
ture allows future expansions of the instruction set that can
be executed by special slave processors, acting as exten-
sions to the CPU. This concept of slave processors is
unique to the Series 32000 architecture. It allows software
compatibility even for future components because the slave
hardware is transparent to the software. With future ad-
vances in semiconductor technology, the slaves can be
physically integrated on the CPU chip itself.
To summarize, the architectural features cited above pro-
vide three primary performance advantages and character-
istics:
#
High-Level Language Support
#
Easy Future Growth Path
#
Application Flexibility
1.1 NS32FX16 SPECIAL FEATURES
In addition to the above Series 32000 features, the
NS32FX16 provides features that make the device extreme-
ly attractive for a wide range of applications where graphics
support, low chip count, and low power consumption are
required.
The most relevant of these features are the enhanced Digi-
tal Signal Processing performance which makes the chip
very attractive for facsimile applications, and the graphics
support capabilities, that can be used in applications such
as printers, CRT terminals, and other varieties of display
systems, where text and graphics are to be handled.
Graphics support is provided by eighteen instructions that
allow operations such as BITBLT, data compression/expan-
sion, fills, and line drawing, to be performed very efficiently.
In addition, the device can be easily interfaced to an exter-
nal BITBLT Processing Unit (BPU) for high BITBLT perform-
ance.
The NS32FX16 allows systems to be built with a relatively
small amount of random logic. The bus is highly optimized
to allow simple interfacing to a large variety of DRAMs and
peripheral devices. All the relevant bus access signals and
clock signals are generated on-chip. The cycle extension
logic is also incorporated on-chip.
The device is fabricated in a low-power, high speed CMOS
technology. It also includes a power-save feature that al-
lows the clock to be slowed down under software control,
thus minimizing the power consumption. This feature can be
used in those applications where power saving during peri-
ods of low performance demand is highly desirable.
The power save feature, the DSP Module and the Bus Char-
acteristics are described in the ‘‘Functional Description’’
section. A general overview of BITBLT operations and a
description of the graphics support instructions is provided
in Section 2.5. Details on all the NS32FX16 graphics in-
structions can be found in the NS32CG16 Printer/Display
Processor Programmer’s Reference Supplement.
6
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| NS32FX16-20 | Imaging/Signal Processor |
| NS32FX16-25 | Imaging/Signal Processor |
| NS32FX164-20 | Advanced Imaging/Communication Signal Processors(高級圖象/通訊信號處理器) |
| NS32FV16-25 | Advanced Imaging/Communication Signal Processors |
| NS32FX164-25 | Advanced Imaging/Communication Signal Processors(高級圖象/通訊信號處理器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NS32FX16-20 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Imaging/Signal Processor |
| NS32FX16-25 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Imaging/Signal Processor |
| NS32FX164 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| NS32FX164-20 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Advanced Imaging/Communication Signal Processors |
| NS32FX164-25 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Advanced Imaging/Communication Signal Processors |
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