ST10F269Z2QX datasheet(54/161 Pages) STMICROELECTRONICS

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ST10F269Z2Qx

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11 - PWM MODULE

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 13 shows the PWM

frequencies for different resolutions. The level of

the output signals is selectable and the PWM

module can generate interrupt requests.

Figure 17 : Block Diagram of PWM Module

Table 13 : PWM Unit Frequencies and Resolution at 40MHz CPU Clock

Mode 0

Resolution

8-bit

10-bit

12-bit

14-bit

16-bit

CPU Clock/1

25ns

156.25kHz

39.1kHz

9.77kHz

2.44Hz

610Hz

CPU Clock/64

1.6

µs

2.44Hz

610Hz

152.6Hz

38.15Hz

9.54Hz

Mode 1

Resolution

8-bit

10-bit

12-bit

14-bit

16-bit

CPU Clock/1

25ns

78.12kHz

19.53kHz

4.88kHz

1.22kHz

305.17Hz

CPU Clock/64

1.6

µs

1.22kHz

305.17Hz

76.29Hz

19.07Hz

4.77Hz

PPx Period Register

Comparator

PTx

16-bit Up/Down Counter

Shadow Register

PWx Pulse Width Register

Input

Run

Control

Clock 1

Clock 2

Comparator

Up/Down/

Clear Control

Match

Output Control

Match

Write Control

* User readable / writeable register

Enable

POUTx

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