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STFLSTUDIO2/KIT

8-BIT FUZZY CO-PROCESSOR

STMicroelectronics 

W.A.R.P.2.0

Figure 3. Pin Connections

VSS

VDD

MCLK

PRESET

OFL

AUTO

LASTIN

OE

RD

TEST

DS

ENDOFL

ERR

BUSY

READY

VSS

VDD

9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61

W.A.R.P. 2.0

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

nc

nc

nc

VDD

VSS

O0

O1

O2

O3

O4

O5

O6

VDD

VSS

nc

nc

nc

Note: nc = Not Connected.

GENERAL DESCRIPTION

W.A.R.P.2.0 is a member of the W.A.R.P. family of

fuzzy microprocessors, completely developed and

produced by SGS-THOMSON Microelectronics us-

ing the high performance, reliable HCMOS4T

(O.7µm) process.

W.A.R.P.2.0 can be used both as a Fuzzy Co-proc-

essor or as a stand-alone microcontroller. In the

former case, it can work together with standard

micros which shall perform normal control tasks

while W.A.R.P.2.0 will be indipendentlyresponsible

for all the fuzzy related computing.

W.A.R.P.2.0 core includes the fuzzifier (ALPHA

calculator), the inference unit, and the defuzzifier.

The I/O capabilities demanded by microprocessor

applications are fulfilled by W.A.R.P.2.0 with 8 Input

and 4 Output lines which can be supported by

handshaking signals.

The capability of preset the polarity of the hand-

shaking signals simplifies the interface with the

host processor.

An internal Start Conversion pulse is provided to

allow simple use for waveform generation which

can be directly applied to drive an A/D converter.

The output 3-STATE buffer can be temporarily

frozen in order to synchronize W.A.R.P.2.0 with

slower devices.

2/28

Running W.A.R.P.2.0 involves a downloading

phase and an On-Line phase. The downloading

phase allows the setting of the processor, in terms

of I/O number, universe of discourse, Membership

Functions (MFs) and rules. During this phase

W.A.R.P.2.0 prepares its internal memories for the

On-Line elaboration phase and loads the micro-

code in its program memory. This microcode, which

drives the On-Line phase, is generated by the

Compiler (see FUZZYSTUDIO™ 2.0 User Man-

ual). After that W.A.R.P.2.0 is ready to run (On-Line

phase) processing inputs and producing the re-

lated outputs according to the configuration loaded

in the downloading phase. It is also possible to

provide the processor with inputs in any order by

specifying their identification numbers.

Two basic memories are available in W.A.R.P.2.0 :

the Antecedent Memory (AM) and the Pro-

gram/Consequent Memory (PCM). The antece-

dent MFs, portrayed by a resolution of 28 elements,

are stored in the AM (256 bytes). W.A.R.P.2.0

exploits a SGS-THOMSON patented strategy to

store the MFs in the AM.

The information about Rules and Consequent MFs

are stored in the PCM (1.4 Kbyte).

FUZZYSTUDIO™ 2.0 is a powerful development

environment consisting of board and software al-

lows an easy configuration and use of W.A.R.P.2.0.

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