PIC12F752 datasheet(89/204 Pages) MICROCHIP

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Preliminary

DS41576A-page 89

PIC12F752/HV752

11.8.3

AUTO-SHUTDOWN RESTART

After an auto-shutdown event has occurred, there are

two ways to have the module resume operation:

• Software controlled

• Auto-restart

The restart method is selected with the GxARSEN bit

of the COGxASD register. Waveforms of a software

controlled automatic restart are shown in Figure 11-4.

11.8.3.1

Software Controlled Restart

When the GxARSEN bit of the COGxASD register is

cleared,

the

COG

must be restarted after

auto-shutdown event by software.

The COG will resume operation on the first rising edge

event after the GxASDE bit is cleared. Clearing the

shutdown state requires all selected shutdown inputs

to be low, otherwise, the GxASDE bit will remain set.

11.8.3.2

Auto-Restart

When the GxARSEN bit of the COGxASD register is

set then the COG will restart from the auto-shutdown

state automatically.

The GxASDE bit will clear automatically and the COG

will resume operation on the first rising edge event

after all selected shutdown inputs go low.

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