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4
]-.
SINGLE OTERATION
r{':: f'r
'r..:..Ä
., flr,-.!.,
.- .... * : rr T
i:i y:j i
(iT
-i/.r i
8 , 5 ( i i i - : .
* ' G
' e .
: ; ' / ' i | ' /
T / H f
i i e + " , . ;
r i
f ' ' # L 5 :
. : l i u - ' ' : ' 1 ; , i i ' i
L $ a l { " ' i } i
, ' . ' ' l
EACH T]]VIER OIERATES I}'IDEF!]NDSNTIY
FROM OTIIERS hIITH IIRUNII SIGNAT.
T]]VMR GEIIEFATES IIOI{II STGNAL FOR
T}IE TER]OD OF SET TN4E.
IICIEATiII SIGNAL TN O}ERATTON
IERIOD MAKES TIMER OIEnATION
O F F .
IISTOPII SIGNAT, DOES NOI ACTUATE L
]N SINGI,E OTERATION.
rN GRoUP oIERATION, nENDrr
SIGNAI RUNS NE]CI TN4ER, AND
TIRUNII SIGNAT, SHOUID BE A?PT]ED
i
TO fMO IN T}IIS GROUP OIERATION.:
IISTOP'I SIGNAI IN A TIMER
OIERATION ?OST?ONES TIü
I Z
T]MER OTERATTON TO TIIE
T
TIME TMO rtONrr SIGNAI, ],/'iILL
BE AP?T,]ED.
CONTINUOUS ÜSTOPII A]dD TMO ''ON'I
S]GNALS WITHIN AN OTERATION
TnlA 0F A TII,ER IIILL N0[ AFI1ECT
TI]B TX4ER O?ERATES TMN AS TF
NO S]GNAI TS ADDED.
I
srr rn'n-l
l-ir-r-l
I
TI,to
I
cFr
I
nlro
RUN
l--
sEr rxE-l
T1,10
OFF
(coue rlt.o.rroN ) orERATroN
TMO
11,11
Tlil2
TM1
STOP
rMO ON
FIGURE 2.13-2
TIMER OIERATTON
l
I
RUN
2
ßpnTTp
l-sET__J
TIjE I,AST TI],ER RUNS THE FIRST
i___-+lgg_l
TIMER. THUS Tifim TII,f'T:S
|
0N
I
oo
oTERATE SERIALIY UNLESS 'rSTOp'f
|
0R ff CLEAR'! SICNÄ-L fS A?PLIED.
l-
TMO
J
l
l
CLEAR
l*snr !
I
T]ME I
- 1 0 1 -
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