T89C5115-RATIM datasheet(81/113 Pages) ATMEL

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AT89C5115

4128G–8051–02/08

Table 57. CCAPMn Registers

CCAPM0 (S:DAh)

CCAPM1 (S:DBh)

PCA Compare/Capture Module n Mode registers (n=0..1)

Reset Value = X000 0000b

ECOMn

CAPPn

CAPNn

MATn

TOGn

PWMn

ECCFn

Bit Number

Bit Mnemonic

Description

Reserved

The Value read from this bit is indeterminate. Do not set this bit.

ECOMn

Enable Compare Mode Module x bit

Clear to disable the Compare function.

Set to enable the Compare function.

The Compare function is used to implement the software Timer, the

high-speed output, the Pulse Width Modulator (PWM) and the

Watchdog Timer (WDT).

CAPPn

Capture Mode (Positive) Module x bit

Clear to disable the Capture function triggered by a positive edge

on CEXx pin.

Set to enable the Capture function triggered by a positive edge on

CEXx pin

CAPNn

Capture Mode (Negative) Module x bit

Clear to disable the Capture function triggered by a negative edge

on CEXx pin.

Set to enable the Capture function triggered by a negative edge on

CEXx pin.

MATn

Match Module x bit

Set when a match of the PCA Counter with the Compare/Capture

TOGn

Toggle Module x bit

The toggle mode is configured by setting ECOMx, MATx and TOGx

bits.

Set when a match of the PCA Counter with the Compare/Capture

PWMn

Pulse Width Modulation Module x Mode bit

Set to configure the module x as an 8-bit Pulse Width Modulator

with output waveform on CEXx pin.

ECCFn

Enable CCFx Interrupt bit

Clear to disable CCFx bit in CCON register to generate an interrupt

request.

Set to enable CCFx bit in CCON register to generate an interrupt

request.

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