ST10F276 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST10F276' PDF : 229 Pages View PDF
PWM modules
11 PWM modules
ST10F276
Two pulse width modulation modules are available on ST10F276: standard PWM0 and
XBUS PWM1. They can generate up to four PWM output signals each, using edge-aligned
or centre-aligned PWM. In addition, the PWM modules can generate PWM burst signals and
single shot outputs. The Table 50 and Table 51 show the PWM frequencies for different
resolutions. The level of the output signals is selectable and the PWM modules can
generate interrupt requests.
Figure 19. Block diagram of PWM module
PPx Period Register *
Comparator
Match
Clock 1
Clock 2
Input
Control
PTx
*
16-bit Up/Down Counter
Run
Up/Down/
Clear Control
Comparator
Match
Output Control
POUTx
Enable
Shadow Register
Write Control
* User readable / writeable register PWx Pulse Width Register *
Table 50. PWM unit frequencies and resolutions at 40 MHz CPU clock
Mode 0 Resolution
8-bit
10-bit
12-bit
14-bit
CPU Clock/1
CPU
Clock/64
25ns
1.6µs
156.25 kHz 39.1 kHz
2.44 kHz
610Hz
9.77 kHz
152.6Hz
2.44Hz
38.15Hz
Mode 1 Resolution
8-bit
10-bit
12-bit
14-bit
CPU Clock/1
CPU
Clock/64
25ns
1.6µs
78.12 kHz
1.22 kHz
19.53 kHz
305.17Hz
4.88 kHz
76.29Hz
1.22 kHz
19.07Hz
Table 51. PWM unit frequencies and resolutions at 64 MHz CPU clock
Mode 0 Resolution
8-bit
10-bit
12-bit
14-bit
CPU Clock/1
CPU
Clock/64
15.6ns
1.0µs
250 kHz
3.91 kHz
62.5 kHz
976.6Hz
15.63 kHz
244.1Hz
3.91Hz
61.01Hz
Mode 1 Resolution
8-bit
10-bit
12-bit
14-bit
CPU Clock/1
CPU
Clock/64
15.6ns
1.0µs
125 kHz
1.95 kHz
31.25 kHz
488.28Hz
7.81 kHz
122.07Hz
1.95 kHz
30.52Hz
16-bit
610Hz
9.54Hz
16-bit
305.2Hz
4.77Hz
16-bit
977Hz
15.26Hz
16-bit
488.3Hz
7.63Hz
88/229
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