Europaisches Patentamt
J
European Patent Office
0
Qy Publication number:
Office europeen des brevets
EUROPEAN
257
776
A3
PATENT
© Application number: 87306376.2
APPLICATION
© int. CIA G06F
13/38
(§) Date of filing: 17.07.87
® Priority: 31.07.86 CA 515108
Applicant: TRW Canada Ltd.,
P.O. Box 9900
Stoney Creek Ontario L8G 3Y4(CA)
@ Date of publication of application:
02.03.88 Bulletin 88/09
© Designated Contracting States:
DE GB SE
® Date of deferred publication of the search report:
19.07.89 Bulletin 89/29
Inventor: Polkinghorne, John
41 Fairwood Place East
Burlington Ontario L7T 2B7(CA)
Inventor: Desnoyers, Michael
106 Oneida Blvd.
Ancaster Ontario L9G 3C8(CA)
© Representative: Abbie, Andrew Kenneth et al
R.G.C. Jenkins & Co. 26 Caxton Street
London SW1H ORJ(GB)
Application specific integrated circuit for cooperation with microprocessor equipment.
© An application specific integrated circuit device
for cooperating with a microprocessor and in input
and read out station, providing timing functions, input
data receipt and storage for transmition to the microprocessor, and for receiving, storing and acting upon
information received from the microprocessor. The
several functions which can be achieved by the
circuit are carried out on command from the microprocessor using a single serial data path. The circuit
comprises a terminal for data path connection therewith, a register for serially receiving data from, and
for serially feeding data to the terminal, and a storlatch means for data in the register. There is
ey* age or
^also a means for feeding local data into the register
for its subsequent feeding to the terminal. A tinning
^oscillator generates a shift clock signal to step the
^ register synchronously with the serially received data
from the terminal, and for serially stepping the regisrjiter at a predetermined rate when serially feeding
(^jdata stored in it to the terminal. A validating means
detects presence of start and stop bit data in pre° determined locations in the
register thereby defining
Q. presence of a data phrase received at the terminal.
Ul Additional means detects command bit data in the
phrase, and further means responsive to simultaneous output of the validating means and the com-
mand bit data detector switches the data storage
means and the register in accordance with the command bit data.
Xerox Copy Centre
RESET
RST/TESTdt
start:
stop;
START2:
1
vvrol
oo I—'
VSSC3-;
FIG.Io
EP 0 257 776 A3
RESET)
1
CLKRST
cruEcccc tr
LCD
.LA
TCH
EDM
> VALID
37-,
COMM2>—\ _ )
'
COMM)—
FIG.Ib
1a
J
European Patent
Office
)
Application Number
EUROPEAN SEARCH R E P O R T
EP
D O C U M E N T S C O N S I D E R E D TO BE R E L E V A N T
Citation of document with indication, where appropriate,
Category
Relevant
of relevant passages
to claim
US-A-4 130 883 (D. HAZELTON)
1-15
* Figures 1-5; column
2, line 24 column 4, l i n e 2; column 4, line 41 column 6, l i n e 44; column 7, line 67 column 8, l i n e 39; column 10, line 43 ■
column 12, l i n e ! 62; column 13, line 51
- column 14, line 38 *
P,X
NEW ELECTRONICS, vol. 19, no. 14, 8 t h
July 1986, pages 29-33, London, GB; C.
MASON et a l . : "CMOS s i n g l e chip m i c r o s
with b u i l t - i n f e a t u r e s s i m p l i f y d e s i g n "
* Page 29, l e f t - h a n d
column, l i n e s
12-31; r i g h t - h a n d column, line 36 page 30; page 31, l e f t - h a n d column,
l i n e s 1-20; f i g u r e s 1,3 *
1-15
MICROELECTRONICS JOURNAL, vol. 17, no.
1, J a n u a r y / F e b r u a r y 1986, pages 5 - 1 4 ,
Benn E l e c t r o n i c s P u b l i c a t i o n s L t d ,
Luton, Beds., GB; D.R. GONZALES:
"Serial pheripheral i n t e r f a c i n g
techniques"
* Paragraph 1: "' i n t r o d u c t i o n " ;
!
p a r a g r a p h 2.1: !SRI
philosophy";
'
p a r a g r a p h 3.3: "SPI
level t r a d e - o f f " ;
figures 1,2,4 *
1-15
ELEKTRONIK, vol. 36, no. 1, 9th J a n u a r y
1987, pages 51-58, Munich, DE; H.
REICHMEYER et a l . : "ASIC-Modulkonzept
mit g r o s s e r A n w e n d u n g s f l e x i b i l i t a t "
* Paragraph 1: "Das S 6 - M o d u l k o n z e p t " ;
paragraph 1.1.1.: " A r c h i t e k t u r " ;
p a r a g r a p h 1.4; pages 5 4 - 5 6 :
" P e r i p h e r i e m o d u l e " ; f i g u r e s la, lb, 2, 4 - 7
1-15
CLASSIFICATION OF THE
APPLICATION ant. CI.4)
G 06 F
2
o
o
CATEGORY OF CITED DOCUMENTS
X : particularly relevant if taken alone
Y : particularly relevant if combined with another
document of the same category
A : technological background
O : non-written disclosure
P : intermediate document
13/38
TECHNICAL FIELDS
SEARCHED (Int. CI.4)
G 06 F
-/-
The present search report has been drawn up for all claims
Place of search
Date of completion of the search
THE HAGUE
09-05-1989
87 30 6376
Examiner
SOLER J . M . B .
T : theory or principle underlying the invention
E : earlier patent document, but published on, or
after the filing date
D : document cited in the application
L : document cited for other reasons
&: member of the same patent family, corresponding
document
13
Page
J
)
European Patent
Office
2
Application Number
EUROPEAN SEARCH R E P O R T
EP
D O C U M E N T S C O N S I D E R E D TO BE R E L E V A N T
Citation of document with indication, where appropriate,
Relevant
Category
of relevant passages
to claim
US-A-4 173 790
(M. ABE)
1-15
* A b s t r a c t ; f i g u r e s 1-11; claims
1,6 *
87 30 6376
CLASSIFICATION OF THE
APPLICATION Ont. C1.4)
TECHNICAL FIELDS
SEARCHED (Int. C1.4)
The present search report has been drawn up for all claims
Place of search
Date of completion of the search
THE HAGUE
09-05-1989
CATEGORY OF CITED DOCUMENTS
S
ob
O
El
X : particularly relevant if taken alone
Y : particularly relevant if combined with another
document of the same category
A : technological background
O : non-written disclosure
P : intermediate document
Examiner
SOLER J . M . B .
T : theory or principle underlying the invention
E : earlier patent document, but published on, or
after the filing date
D : document cited in the application
L : document cited for other reasons
&: member of the same patent family, corresponding
document