SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 199

• Manufacturer Part Number: SAF-C164SM
• Description: 16-Bit CMOS Microcontroller
• Manufacturer: Infineon Technologies

Timer 3 Output Toggle Latch
An overflow or underflow of timer T3 will clock the toggle bit T3OTL in control register
T3CON. T3OTL can also be set or reset by software.
Additionally, T3OTL can be used in conjunction with the timer over/underflows as an
input for the counter function or as a trigger source for the reload function of the auxiliary
timers T2 and T4. An internal connection is provided for this option.
Timer 3 in Timer Mode
Timer mode for the core timer T3 is selected by setting bit field T3M in register T3CON
to ‘000
by a programmable prescaler, which is selected by bit field T3I. The input frequency
for timer T3 and its resolution
as can be seen from the following formula:
Figure 10-3 Block Diagram of Core Timer T3 in Timer Mode
Timer input frequencies, resolution, and periods resulting from the selected prescaler
option are listed in
and to the auxiliary timers T2 and T4 in timer and gated timer mode. Note that some
numbers may be rounded to 3 significant digits.
User’s Manual
f
T3
T3EUD = P5.2
=
TxEUD
B
’. In this mode, T3 is clocked with the internal system clock (CPU clock) divided
8
f
f
CPU
CPU
2
<T3I>
TxUD
Table
2
XOR
Txl
n
: 1
,
10-2. This table also applies to the Gated Timer Mode of T3
r
TxUDE
0
1
T3
MUX
r
TxR
T3
[ s] =
are scaled linearly with lower clock frequencies
Core Timer Tx
f
8
CPU
10-5
2
[MHz]
<T3I>
Up/
Down
General Purpose Timer Unit
TxOTL
C164CM/C164SM
Interrupt
Request
(TxIR)
To auxiliary
Timers
Derivatives
MCB02028d
V1.0, 2002-02
n = 3 … 10
x = 3
f
CPU
f
T3
,