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UPD7720 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - DIGITAL SIGNAL PROCESSOR - NEC

भाग संख्या UPD7720
समारोह DIGITAL SIGNAL PROCESSOR
मैन्युफैक्चरर्स NEC 
लोगो NEC लोगो 
पूर्व दर्शन
1 Page
		
<?=UPD7720?> डेटा पत्रक पीडीएफ

UPD7720 pdf
p.PD7720
NC
~
ORa
PO
P1
DO
01
02'
03
O~
05
06
07
GNO
2
3
4
5
6
71lPD7720D
8
9
vcc
AO
~
lfD'
WFf
SORa
SO
SI
'MElir
'SJ'EN"
SCK
INT
RST
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PIN CONFIGURATION
Fabricated in high speed NMOS, the JlPD.7720 SPI is a complete 16-bit microcomputer
on a single chip. ROM space is provided for program and coefficient storage, while
the on-chip RAM may be used for temporary data, coefficients and results. Computa-
tional power is provided by a 16-bit Arithmetic/Logic Unit (ALU) and a separate
16 x 16 bit fully parallel multiplier. This combination allows the implementation of a
"sum of products" operation in a single 250 nsec instruction cycle. In addition, each
arithmetic instruction provides for a number of data movement operations to further
increase throughput. Two serial I/O po'rts are provided for interfacing to codecs and
other serially-oriented devices while a parallel port provides both data and status
information to conventional JlP for more sophisticated applications. Handshaking
signals, including DMA controls, allow the SPI to act as a sophisticated programmable
peripheral as well as a stand alone microcomputer.
FUNCTIONAL DESCRIPTION
Memory is divided into three types, Program ROM, Data ROM, and Data RAM.
MEMORY
The 512 x 23 bit words of Program ROM are addressed by a 9-bit Program Counter
which can be modified by an external reset, interrupt, call, jump, or return instruction.
The Data ROM is organized in 512 x 13 bit words and is also addressed through a 9-bit
ROM pointer (RP Reg,) which may be modified as part of an arithmetic instruction
so that the next value is available for the next instruction. The Data ROM is ideal
for storing the necessary coefficients, conversion tables and other constants for all
your processing needs.
The Data RAM is 128 x 16 bit words and is addressed through a 7-bit Data Pointer
(DP Reg.). The DP has extensive addressing features that operate simultaneously with
arithmetic instructions so that no added time is taken for addressing or address
modification.
BLOCK DIAGRAM
,aRAxM'.
MULTIPL.IER
STACK
.
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विन्यास 17 पेज
डाउनलोड[ UPD7720 Datasheet.PDF ]


शेयर लिंक


अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
UPD7720DIGITAL SIGNAL PROCESSORNEC
NEC
UPD7720ADigital Signal ProcessorsNEC
NEC


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