SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 208

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

Timers T2 and T4 in Counter Mode
Counter mode for the auxiliary timers T2 and T4 is selected by setting bit field TxM in the
respective register TxCON to ‘001
either by a transition at the respective external input pin TxIN, or by a transition of timer
T3’s output toggle latch T3OTL.
Figure 10-10 Block Diagram of an Auxiliary Timer in Counter Mode
The event causing an increment or decrement of a timer can be a positive, a negative,
or both a positive and a negative transition at either the respective input pin or at the
toggle latch T3OTL.
Bit field TxI in the respective control register TxCON selects the triggering transition (see
Table
User’s Manual
10-8).
TxIN
TxEUD
TxU
D
Edge
Select
XOR
Txl
B
’. In counter mode, timers T2 and T4 can be clocked
TxUDE
0
1
MUX
TxR
10-14
Auxiliary Timer Tx
Up/
Dow
n
General Purpose Timer Unit
mcb02221.vsd
C164CM/C164SM
Interrupt
Request
(TxIR)
Derivatives
V1.0, 2002-02
x = 2.4