TMP92CZ26A

92CZ26A-32

(2) Reduced drivability for low-fr equency oscilla tor circuit
(Purpose)
Reduces noise and p ow er for oscillator when a resonator is used.
(Block diagram)
XT1 pin
Resonator
C2
C1 En able oscillation
EMCCR0<DRVOSCL>
fS
XT2 pin
(Setting method)
The drivabili ty of the oscillator is reduc ed by writing 0 to the EMCCR0<DR VOSCL >
register. By Reset, <DRV OSCL> is initialized to “1”.
(3) Single drive for high-freq uency oscillator circuit
(Purpose)
Not need twin-driv e and protect mistake-operati on by inputted noise to X2 pin when
the external-oscilla tor is used.
(Block diagram)
X1 pin
X2 pin
Enable oscillation
EMCCR0<DRVOSCH>
fOSCH
(Setting method)
The oscillator is disabled and starts operation as buffer by writing “1” to
EMCCR0<EXTIN> register. X2-pin is always outputted”1”.
By reset,<EXTIN> is ini tialized to “0”.
Note: Do not write EMCCR0<EXTIN> = “1” when using external resonator.