SAB80515 Datasheet, PDF (82/270 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller Family

On-Chip Peripheral Components
7.5 Timer 2 with Additional Compare/Capture/Reload
The timer 2 with additional compare/capture/reload features is one of the most powerful peripheral
units of the SAB 80(C)515. lt is used for all kinds of digital signal generation and event capturing
like pulse generation, pulse width modulation, pulse width measuring etc.
This allows various automotive control applications (ignition/injection-control, anti-lock-brake …) as
well as industrial applications (DC-, three-phase AC- and stepper-motor control, frequency
generation, digital-to-analog conversion, process control …).
Please note that this timer is not equivalent to timer 2 of the SAB 80(C)52 (see section 7.5.1 ).
Timer 2 in combination with the compare/capture/reload registers allows the following modes:
Compare: up to 4 PWM signals with 65535 steps at maximum, and 1 µsec resolution
Capture: up to 4 high speed inputs with 1 µsec resolution
Reload: modulation of timer 2 cycle time
The block diagram in figure 7-33 a) shows the general configuration of timer 2 with the additional
compare/capture/reload registers.
The corresponding port functions are listed in table 7-8.
Table 7-9 shows the additional special function registers of timer 2.
Semiconductor Group
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