SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 211

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

Auxiliary Timer in Reload Mode
Reload mode for the auxiliary timers T2 and T4 is selected by setting bit field TxM in the
respective register TxCON to ‘100
the contents of an auxiliary timer register, triggered by one of two different signals. The
trigger signal is selected the same way as the clock source for counter mode (see
Table
may trigger the reload.
Note: When programmed for reload mode, the respective auxiliary timer (T2 or T4) stops
Figure 10-12 GPT1 Auxiliary Timer in Reload Mode
Upon a trigger signal, T3 is loaded with the contents of the respective timer register (T2
or T4) and the interrupt request flag (T2IR or T4IR) is set.
Note: When a T3OTL transition is selected for the trigger signal, the interrupt request
User’s Manual
*) Note: Line only affected by over/underflows of T3, but NOT by software modifications of T3OTL.
TxIN
independently of its run flag T2R or T4R.
flag T3IR will also be set upon a trigger, indicating T3’s overflow or underflow.
Modifications of T3OTL via software will NOT trigger the counter function of T2/T4.
10-8), i.e. a transition of the auxiliary timer’s input or the output toggle latch T3OTL
*)
Source/Edge
Select
TxI
Input
Clock
Reload Register Tx
Core Timer T3
B
Up/Down
’. In reload mode, the core timer T3 is reloaded with
10-17
T3OTL
General Purpose Timer Unit
Interrupt
Request
(TxIR)
Interrupt
Request
(T3IR)
C164CM/C164SM
Derivatives
V1.0, 2002-02
MCB02035b
x = 2, 4