I2CCON datasheet(90/210 Pages) MICROCHIP

90 / 210 page

dsPIC30F2011/2012/3012/3013

DS70139G-page 90

12.5

Output Compare Operation During

CPU Sleep Mode

When the CPU enters Sleep mode, all internal clocks

are stopped. Therefore, when the CPU enters the

Sleep state, the output compare channel drives the pin

to the active state that was observed prior to entering

the CPU Sleep state.

For example, if the pin was high when the CPU entered

the Sleep state, the pin remains high. Likewise, if the

pin was low when the CPU entered the Sleep state, the

pin remains low. In either case, the output compare

module resumes operation when the device wakes up.

12.6

Output Compare Operation During

CPU Idle Mode

When the CPU enters the Idle mode, the output

compare module can operate with full functionality.

The output compare channel operates during the CPU

Idle mode if the OCSIDL bit (OCxCON<13>) is at logic

‘0’ and the selected time base (Timer2 or Timer3) is

enabled and the TSIDL bit of the selected timer is set

to logic ‘0’.

12.7

Output Compare Interrupts

The output compare channels have the ability to

generate an interrupt on a compare match, for

whichever Match mode has been selected.

For all modes except the PWM mode, when a compare

event occurs, the respective interrupt flag (OCxIF) is

asserted and an interrupt is generated if enabled. The

OCxIF bit is located in the corresponding IFS register

and must be cleared in software. The interrupt is

enabled via the respective compare interrupt enable

(OCxIE) bit located in the corresponding IEC Control

For the PWM mode, when an event occurs, the

respective timer interrupt flag (T2IF or T3IF) is asserted

and an interrupt is generated if enabled. The IF bit is

located in the IFS0 register and must be cleared in

software. The interrupt is enabled via the respective

timer interrupt enable bit (T2IE or T3IE) located in the

IEC0 Control register. The output compare interrupt

flag is never set during the PWM mode of operation.

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