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Q67120-C1054 Просмотр технического описания (PDF) - Siemens AG
Номер в каталоге
Компоненты Описание
производитель
Q67120-C1054
8-Bit CMOS Microcontroller
Siemens AG
Q67120-C1054 Datasheet PDF : 48 Pages
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C501
Timer 2
Timer 2 is a 16-bit timer/counter with an up/down count feature. It can operate either as timer or as
an event counter which is selected by bit C/T2 (T2CON.1). It has three operating modes as shown
in
table 5
.
Table 5
Timer/Counter 2 Operating Modes
Mode
16-bit
Auto-
reload
16-bit
Cap-
ture
Baud
Rate
Gene-
rator
off
T2CON
R
×
CLK
or
T
×
CLK
CP/
RL2
0
0
0
0
0
0
0
0
0
1
0
1
1
X
1
X
X
X
T2MOD T2CON
TR2
DCEN
P1.1/
T2EX
Remarks
EXEN
Input Clock
internal
external
(P1.0/T2)
1
0
1
0
1
1
1
1
1
X
1
X
1
X
1
X
0
X
0
X reload upon
overflow
1
↓
reload trigger
(falling edge)
f
OSC
/12
max
f
OSC
/24
X
0 Down counting
X
1 Up counting
0
X 16 bit Timer/
Counter (only
1
up-counting)
↓
capture TH2,
f
OSC
/12
max
f
OSC
/24
TL2
→
RC2H,
RC2L
0
X no overflow
interrupt
1
request (TF2)
↓
extra external
f
OSC
/2
max
f
OSC
/24
interrupt
(“Timer 2”)
X
X Timer 2 stops
–
–
Note:
↓
=
falling edge
Semiconductor Group
20
1997-04-01
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