HT82K96E 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT82K96E Datasheet PDF : 44 Pages
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HT82K96E
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
4.
Bit No. Label
Function
0~2, 5
¾
Unused bit, read as ²0²
3
TE
To define the TMR0 active edge of Timer/Event Counter 0
(0=active on low to high; 1=active on high to low)
4
TON To enable/disable timer 0 counting (0=disabled; 1=enabled)
To define the operating mode
6
7
TM0
TM1
01=Event count mode (external clock)
10=Timer mode (internal clock)
11=Pulse width measurement mode
00=Unused
TMR0C (0EH) Register
Bit No.
0~2, 5
3
4
6
7
Label
¾
TE
TON
TM0
TM1
Function
Unused bit, read as ²0²
To define the TMR1 active edge of Timer/Event Counter 1
(0=active on low to high; 1=active on high to low)
To enable/disable timer 1 counting (0=disabled; 1=enabled)
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
fS Y S /4
TM R 0
TM 1
TM 0
TE
D a ta B u s
T im e r /E v e n t C o u n te r 0 R e lo a d
P r e lo a d R e g is te r
TM 1
TM 0
P u ls e W id th
M e a s u re m e n t
M o d e C o n tro l
TO N
T im e r /E v e n t
C o u n te r 0
Timer/Event Counter 0
O v e r flo w
to In te rru p t
f S Y S /4
TM R 1
TM 1
TM 0
TO N
TM 1
TM 0
TE
P u ls e W id th
M e a s u re m e n t
M o d e C o n tro l
D a ta B u s
1 6 B its
T im e r /E v e n t C o u n te r
P r e lo a d R e g is te r
1 6 B its
T im e r /E v e n t C o u n te r
(T M R 1 H /T M R 1 L )
Timer/Event Counter 1
L o w B y te
B u ffe r
R e lo a d
O v e r flo w
to In te rru p t
Rev. 2.00
15
October 11, 2007
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