SAK-C504 Infineon Technologies AG, SAK-C504 Datasheet - Page 26

• Manufacturer Part Number: SAK-C504
• Description: 8-Bit Single-Chip Microcontroller
• Manufacturer: Infineon Technologies AG

Timer/Counter 0 and 1
Timer/Counter 0 and 1 can be used in four operating modes as listed in Table 4.
Table 4
Mode Description
0
1
2
3
In the “timer” function (C/
Therefore the count rate is
In the “counter” function the register is incremented in response to a 1-to-0 transition at
its corresponding external input pin (P3.4/T0, P3.5/T1). Since it takes two machine
cycles to detect a falling edge the max. count rate is
INT1
measurements. Figure 10 illustrates the input clock logic.
Figure 10
Data Sheet
(P3.2, P3.3) can be programmed to function as a gate to facilitate pulse width
8-bit timer/counter with a
divide-by-32 prescaler
16-bit timer/counter
8-bit timer/counter with
8-bit auto-reload
Timer/counter 0 used as one
8-bit timer/counter and one
8-bit timer
Timer 1 stops
P3.4/T0
P3.5/T1
max
P3.2/INT0
P3.3/INT1
f
OSC
Timer/Counter 0 and 1 Operating Modes
Timer/Counter 0 and 1 Input Clock Logic
/24
TR 0/1
TCON
TMOD
Gate
f
OSC
T
f
OSC
= ‘0’), the register is incremented every machine cycle.
/12.
=1
÷
12
Gate C/
X
X
X
X
<
_
22
1
TMOD
X
X
X
X
0
1
T
TMOD
C/T
M1 M0 internal
0
1
0
1
MCS01768
&
f
OSC
1
0
0
1
/24. External inputs INT0 and
Control
f
f
f
f
OSC
OSC
OSC
OSC
/12
/12
/12
/12
Input Clock
32
f
Timer 0/1
Input Clock
OSC
external
(max.)
f
f
f
f
/12
OSC
OSC
OSC
OSC
/24
/24
/24
/24
2000-05
C504
32