C515 Datasheet, PDF (26/55 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

C515
Timer/Counter 2 with Compare/Capture/Reload
The timer 2 of the C515 provides additional compare/capture/reload features. which allow the
selection of the following operating modes:
– Compare : up to 4 PWM signals with 16-bit/500 ns resolution
– Capture : up to 4 high speed capture inputs with 500 ns resolution
– Reload : modulation of timer 2 cycle time
The block diagram in figure 10 shows the general configuration of timer 2 with the additional
compare/capture/reload registers. The I/O pins which can used for timer 2 control are located as
multifunctional port functions at port 1.
P1.5/
T2EX
Sync.
P1.7/
T2
Sync.
OSC ^{f OSC}
÷ 12 ¹²
÷ 24
T2PS
24
T2I0
T2I1
&
EXF2
EXEN2
Reload ^Reload
Timer 2
TL2 TH2
1
Interrupt
Request
TF2
Compare
16 Bit
Comparator
16 Bit
Comparator
16 Bit
Comparator
16 Bit
Comparator
Capture
CCL3/CCH3
CCL2/CCH2
CCL1/CCH1
CRCL/CRCH
Figure 10
Timer 2 Block Diagram
Input/
Output
Control
P1.0/
INT3/
CC0
P1.1/
INT4/
CC1
P1.2/
INT5/
CC2
P1.2/
INT6/
CC3
MCB03205
Semiconductor Group
26
1997-08-01