DSPIC30F2010 datasheet(67/202 Pages) MICROCHIP

67 / 202 page

DS70118J-page 67

dsPIC30F2010

11.0

INPUT CAPTURE MODULE

This section describes the Input Capture module and

associated operational modes. The features provided

by this module are useful in applications requiring Fre-

quency (Period) and Pulse measurement. Figure 11-1

depicts a block diagram of the Input Capture module.

Input capture is useful for such modes as:

• Frequency/Period/Pulse Measurements

• Additional sources of External Interrupts

The key operational features of the Input Capture

module are:

• Simple Capture Event mode

• Timer2 and Timer3 mode selection

• Interrupt on input capture event

These operating modes are determined by setting the

appropriate bits in the ICxCON register (where

x = 1,2,...,N). The dsPIC DSC devices contain up to

eight capture channels, (i.e., the maximum value of

N is 8).

FIGURE 11-1:

INPUT CAPTURE MODE BLOCK DIAGRAM

Note:

This data sheet summarizes features of

this group of dsPIC30F devices and is not

intended to be a complete reference

source. For more information on the CPU,

peripherals,

descriptions

and

general device functionality, refer to the

“dsPIC30F Family Reference Manual”

(DS70046).

Note:

The

dsPIC30F2010

device

has

four

capture inputs – IC1, IC2, IC7 and IC8.

The naming of these four capture chan-

nels is intentional and preserves software

compatibility

with

other

dsPIC

DSC

devices.

ICxBUF

Prescaler

ICx

ICM<2:0>

Mode Select

Note:

Where ‘x’ is shown, reference is made to the registers or bits associated to the respective input capture channels 1 through N.

Set Flag

ICxIF

ICTMR

T2_CNT

T3_CNT

Edge

Detection

Logic

Clock

Synchronizer

1, 4, 16

From General Purpose Timer Module

FIFO

R/W

Logic

ICI<1:0>

ICBNE, ICOV

ICxCON

Interrupt

Logic

Set Flag

ICxIF

Data Bus

DSPIC30F2010 датащи(PDF) 67 Page - Microchip Technology

DSPIC30F2010 датащи(HTML) 67 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL