ST10R172L - PWM MODULE
of external memory space, the address space can be restricted to 1 MByte, 256 KByte or to 64
KByte.
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PWM MODULE
A 1-channel Pulse Width Modulation (PWM) Module operates on channel 3. The pulse width
modulation module can generate up to four PWM output signals using edge-aligned or centre-
aligned PWM. In addition, the PWM module can generate PWM burst signals and single shot
outputs. The table below shows the PWM frequencies for different resolutions. The level of
the output signals is selectable and the PWM module can generate interrupt requests.
Mode 0
edge aligned
Resolution 8-bit
10-bit
12-bit
14-bit
16-bit
CPU clock/1
CPU clock/64
20ns
1.28ns
195.3 KHz 48.83KHz 12.21KHz 3.052KHz 762.9Hz
3.052KHz 762.9Hz 190.7Hz 47.68Hz 11.92Hz
Mode 1
center aligned
Resolution 8-bit
10-bit
12-bit
14-bit
16-bit
CPU clock/1
20ns
97.66KHz 24.41KHz 6.104KHz 1.525KHz 381.5Hz
CPU clock/64
1.28ns
1.525Hz 381.5 Hz 95.37Hz 23.84Hz 0Hz
Table 4 PWM unit frequencies and resolution at 50MHz CPU clock
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