Microchip Technology dsPIC33F Family Manuel d'utilisateur télécharger pdf (Page 2)

dsPIC33F/PIC24H Family Reference Manual

11.1 INTRODUCTION

The dsPIC33F/PIC24H device family offers several 16-bit Timer modules. With certain

exceptions, all 16-bit timers have the same functional circuitry, and are classified into three types

according to their functional differences:

• Type A timer (Timer1)

• Type B timer (Timer2, Timer4, Timer6 and Timer8)

• Type C timer (Timer3, Timer5, Timer7 and Timer9)

The Type B and Type C timers can be combined to form a 32-bit timer.

Each Timer module is a 16-bit timer/counter consisting of the following readable/writable

registers:

• TMRx: 16-bit Timer Count register

• PRx: 16-bit Timer Period register associated with the timer

• TxCON: 16-bit Timer Control register associated with the timer

Each Timer module also has these associated bits for interrupt control:

• Interrupt Enable Control bit (TxIE)

• Interrupt Flag Status bit (TxIF)

• Interrupt Priority Control bits (TxIP<2:0>)

Note: This family reference manual section is meant to serve as a complement to device

data sheets. Depending on the device variant, this manual section may not apply

to all dsPIC33F/PIC24H devices.

Please consult the note at the beginning of the “Timers” chapter in the current

device data sheet to check whether this document supports the device you are

using.

Device data sheets and family reference manual sections are available for

download from the Microchip Worldwide Web site at: http://www.microchip.com

Note 1: Each dsPIC33F/PIC24H device variant can have one or more Timer modules. For

more details, refer to the specific device data sheets.

2: An ‘x’ used in the names of pins, control/status bits and registers denotes the

particular timer number (x = 1 to 9).

3: A ‘y’ used in the names of pins, control/status bits and registers denotes the

particular Type C timer number (y = 3, 5, 7 and 9).

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Microchip Technology dsPIC33F Family Manuel d'utilisateur Page 2