st10f273m STMicroelectronics, st10f273m Datasheet - Page 67

• Manufacturer Part Number: st10f273m
• Description: 16-bit Mcu With 512 Kbyte Flash Memory And 36 Kbyte Ram
• Manufacturer: STMicroelectronics

ST10F273M
12
PWM modules
Two pulse width modulation modules are available on ST10F273M: standard PWM0 and
XBUS PWM1. They can generate up to four PWM output signals each, using edge-aligned
or center-aligned PWM. In addition, the PWM modules can generate PWM burst signals and
single shot outputs.
of the output signals is selectable and the PWM modules can generate interrupt requests.
Figure 13. Block diagram of PWM module
Table 37.
CPU Clock/64
CPU Clock/64
Clock 1
Clock 2
* User readable / writeable register
CPU Clock/1
CPU Clock/1
Mode 0
Mode 1
PWM unit frequencies and resolutions at 40 MHz CPU clock
control
Input
Resolution
Resolution
1.6µs
1.6µs
25ns
25ns
Table 37
Run
156.25 kHz
shows the PWM frequencies for different resolutions. The level
78.12 kHz
2.44 kHz
1.22 kHz
8-bit
8-bit
PWx pulse width register *
16-bit up/down counter
PPx period register *
Shadow register
Comparator
Comparator
PTx
19.53 kHz
305.17Hz
39.1 kHz
610 Hz
10-bit
10-bit
*
Match
152.6 Hz
76.29 Hz
9.77 kHz
4.88 kHz
Match
12-bit
12-bit
Output control
Write control
clear control
Up/down/
38.15 Hz
19.07 Hz
1.22 kHz
2.44 Hz
14-bit
14-bit
Enable
PWM modules
305.2 Hz
POUTx
9.54 Hz
4.77 Hz
610 Hz
16-bit
16-bit
67/182