HT82K96E datasheet(15/44 Pages) HOLTEK

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HT82K96E

Rev. 2.00

October 11, 2007

Bit No.

Label

Function

0~2, 5

Unused bit, read as

²0²

3TE

To define the TMR0 active edge of Timer/Event Counter 0

(0=active on low to high; 1=active on high to low)

TON

To enable/disable timer 0 counting (0=disabled; 1=enabled)

TM0

TM1

To define the operating mode

01=Event count mode (external clock)

10=Timer mode (internal clock)

11=Pulse width measurement mode

00=Unused

TMR0C (0EH) Register

Bit No.

Label

Function

0~2, 5

Unused bit, read as

²0²

3TE

To define the TMR1 active edge of Timer/Event Counter 1

(0=active on low to high; 1=active on high to low)

TON

To enable/disable timer 1 counting (0=disabled; 1=enabled)

TM0

TM1

To define the operating mode

01=Event count mode (external clock)

10=Timer mode (internal clock)

11=Pulse width measurement mode

00=Unused

TMR1C (11H) Register

Timer/Event Counter

Two timer/event counters (TMR0, TMR1) are imple-

mented in the microcontroller. The Timer/Event Counter

0 contains an 8-bit programmable count-up counter and

the clock may comes from an external source or from

fSYS/4.

The Timer/Event Counter 1 contains an 16-bit program-

mable count-up counter and the clock may come from

an external source or from the system clock divided by

T M 1

T M 0

T M R 0

T E

T M 1

T M 0

T O N

P u l s e W i d t h

M e a s u r e m e n t

M o d e C o n t r o l

T i m e r / E v e n t C o u n t e r 0

P r e l o a d R e g i s t e r

T i m e r / E v e n t

C o u n t e r 0

D a t a B u s

R e l o a d

O v e r f l o w

t o I n t e r r u p t

f S Y S / 4

Timer/Event Counter 0

T M 1

T M 0

T M R 1

T E

T M 1

T M 0

T O N

P u l s e W i d t h

M e a s u r e m e n t

M o d e C o n t r o l

1 6 B i t s

T i m e r / E v e n t C o u n t e r

P r e l o a d R e g i s t e r

D a t a B u s

R e l o a d

O v e r f l o w

t o I n t e r r u p t

f S Y S / 4

1 6 B i t s

T i m e r / E v e n t C o u n t e r

( T M R 1 H / T M R 1 L )

L o w B y t e

B u f f e r

Timer/Event Counter 1

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