DSPIC33EP128GS708 datasheet(180/484 Pages) MICROCHIP

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dsPIC33EPXXXGS70X/80X FAMILY

DS70005258C-page 180

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14.2

Input Capture Registers

ICxCON1: INPUT CAPTURE x CONTROL REGISTER 1

U-0

R/W-0

U-0

—

ICSIDL

ICTSEL2

ICTSEL1

ICTSEL0

—

bit 15

bit 8

U-0

R/W-0

HC/HS/R-0

R/W-0

—

ICI1

ICI0

ICOV

ICBNE

ICM2

ICM1

ICM0

bit 7

bit 0

Legend:

HC = Hardware Clearable bit

HS = Hardware Settable bit

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 15-14

Unimplemented: Read as ‘0’

bit 13

ICSIDL: Input Capture x Stop in Idle Control bit

1 = Input capture will halt in CPU Idle mode

0 = Input capture will continue to operate in CPU Idle mode

bit 12-10

ICTSEL<2:0>: Input Capture x Timer Select bits

111 = Peripheral clock (FP) is the clock source of the ICx

110 = Reserved

101 = Reserved

100 = T1CLK is the clock source of the ICx (only the synchronous clock is supported)

011 = T5CLK is the clock source of the ICx

010 = T4CLK is the clock source of the ICx

001 = T2CLK is the clock source of the ICx

000 = T3CLK is the clock source of the ICx

bit 9-7

Unimplemented: Read as ‘0’

bit 6-5

ICI<1:0>: Number of Captures per Interrupt Select bits (this field is not used if ICM<2:0> = 001 or 111)

11 = Interrupt on every fourth capture event

10 = Interrupt on every third capture event

01 = Interrupt on every second capture event

00 = Interrupt on every capture event

bit 4

ICOV: Input Capture x Overflow Status Flag bit (read-only)

1 = Input capture buffer overflow has occurred

0 = No input capture buffer overflow has occurred

bit 3

ICBNE: Input Capture x Buffer Not Empty Status bit (read-only)

1 = Input capture buffer is not empty, at least one more capture value can be read

0 = Input capture buffer is empty

bit 2-0

ICM<2:0>: Input Capture x Mode Select bits

111 = Input Capture x functions as an interrupt pin only in CPU Sleep and Idle modes (rising edge

detect only, all other control bits are not applicable)

110 = Unused (module is disabled)

101 = Capture mode, every 16th rising edge (Prescaler Capture mode)

100 = Capture mode, every 4th rising edge (Prescaler Capture mode)

011 = Capture mode, every rising edge (Simple Capture mode)

010 = Capture mode, every falling edge (Simple Capture mode)

001 = Capture mode, every rising and falling edge (Edge Detect mode, ICI<1:0> is not used in this mode)

000 = Input Capture x is turned off

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