JP7215262B2 - Information processing device and program - Google Patents

Description

The present invention relates to an information processing device and program.

Patent Document 1 discloses a system that has a main CPU and a sub CPU, and when the main CPU receives an incoming call from an external line while in sleep mode, the sub CPU responds to the incoming call and activates the main CPU to provide modem control authority. is disclosed in a facsimile machine that transfers to a main CPU.

In Patent Document 2, the main controller prohibits acceptance of interrupt signals during the transition period of the device from the first power mode to the second power mode with low power consumption, and completes the transition to the second power mode. Then, the interrupt prohibition is released, and when an interrupt signal is generated from the load during the transition period, the microcomputer repeatedly notifies the main controller unit of the interrupt signal as a pulse signal. An image processing apparatus is disclosed that changes to a signal and notifies it.

JP 2014-158129 A JP 2018-061167 A

It is an object of the present invention to detect whether or not the detection unit has detected a change in the external factor during the transition period, when the detection unit detects a change in the external factor. It is an object of the present invention to provide an information processing device and a program capable of detecting that a detection unit has detected a change in an external factor after the end of a transition period even when a change is received.

[Information processing device]
In the present invention according to claim 1, when an incoming call from the outside is detected, a detection unit for changing the logic of an interrupt signal for notifying the presence or absence of the incoming call ;
a first control unit that performs control to execute processing corresponding to an incoming call detected by the detection unit when a logic change in the interrupt signal is detected;
controlling the first control unit and changing a detection method of the logic change of the interrupt signal from edge detection to level detection when transitioning from the first control unit to monitoring processing of the logic change of the interrupt signal; and after the first control unit disallows interrupt processing associated with a logic change of the interrupt signal, when the transition period ends, interrupt processing associated with a logic change of the interrupt signal is permitted, and a second control unit that performs control such that processing corresponding to an incoming call detected by the detection unit is executed in accordance with the logic state of an interrupt signal.

In the present invention according to claim 2, the information according to claim 1, wherein the second control unit performs control to switch the detection method of the logic change of the interrupt signal from level detection to edge detection after the transition period ends. processing equipment.

According to a third aspect of the present invention, the second control section temporarily clears the detection state of the logic change of the interrupt signal during the transition period before the end of the transition period. It is an information processing device.

According to the fourth aspect of the present invention, the second control unit controls the logic of the interrupt signal from the first control unit when the operation mode of the device is switched from the normal operation mode to the power saving mode. 4. The information processing apparatus according to any one of claims 1 to 3, wherein the change monitoring process is shifted and the operation of the first control unit is stopped.

In the present invention according to claim 5, the first control unit controls the detection unit to be in a power saving state before entering an operation stop state,
5. The information processing apparatus according to claim 4, wherein the detection unit changes the logic of the interrupt signal due to internally generated noise when shifting from the normal operation state to the power saving state.

In the present invention according to claim 6, the second control unit is transferred from the first control unit to monitoring the logic change of the interrupt signal, and the interrupt caused by the logic change of the interrupt signal is permitted. switch the operation mode of the device from the power saving mode to the normal operation mode when detecting a logic change of the interrupt signal, activate the first control unit, and detect the incoming call detected by the detection unit. 6. The information processing apparatus according to claim 4 or 5, wherein a process according to the condition is executed.

[program]
The present invention according to claim 7 is the step of detecting an incoming call from the outside and changing the logic of an interrupt signal for notifying the presence or absence of the incoming call;
a first control unit, upon detecting a logic change of the interrupt signal, performing control to execute processing according to the detected incoming call ;
In a second control unit that controls the first control unit, when transitioning from the first control unit to monitoring processing of a logic change in the interrupt signal, a method for detecting a logic change in the interrupt signal is provided. switching from edge detection to level detection;
In the second control unit, when the transition period ends after the first control unit disallows the interrupt processing associated with the logic change of the interrupt signal, interrupt processing associated with the logic change of the interrupt signal is performed. and performing control such that processing corresponding to the detected incoming call is executed according to the logic state of the interrupt signal.

According to the first aspect of the present invention, when the detection unit shifts the monitoring process of whether or not the detection unit has detected a change in the external factor from the first control unit to the second control unit, detection is performed during the transition period. It is possible to provide an information processing apparatus capable of detecting that the detection unit has detected a change in the external factor after the transition period has ended even when the unit receives the change in the external factor.

According to the second aspect of the present invention, the second control unit detects the logic change of the interrupt signal, compared to the case where the logic change of the interrupt signal is detected while the level is detected even after the transition period ends. It is possible to provide an information processing apparatus capable of reducing the processing load for processing.

According to the third aspect of the present invention, it is possible to prevent unnecessary processing from being executed after the end of the transition period even if a logic change occurs in the interrupt signal due to malfunction of the detection unit during the transition period. It is possible to provide a sophisticated information processing apparatus.

According to the fourth aspect of the present invention, it is possible to provide an information processing apparatus capable of reducing the power consumption of the apparatus as compared with the case where the first control unit is not put in the operation stop state.

According to the fifth aspect of the present invention, it is possible to provide an information processing apparatus capable of reducing the power consumption of the apparatus as compared with the case where the detection unit is not placed in the power saving state.

According to the sixth aspect of the present invention, even if the second control unit does not have a function of executing processing according to changes in external factors detected by the detection unit, the first control unit stops operating. It is possible to provide an information processing apparatus capable of executing processing according to the change in the external factor detected by the detection unit when the change in the external factor is detected in the state detection.

According to the seventh aspect of the present invention, when the monitoring process of whether or not the detection unit detects a change in the external factor is transferred from the first control unit to the second control unit, detection is performed during the transition period. It is possible to provide a program capable of detecting that the detection unit has detected a change in the external factor after the transition period has ended even when the unit receives the change in the external factor.

1 is a diagram showing the system configuration of an image forming system according to one embodiment of the present invention; FIG. 2 is a block diagram showing the hardware configuration in the normal operation mode of image forming apparatus 10 according to one embodiment of the present invention; FIG. 2 is a block diagram showing the hardware configuration in sleep mode of the image forming apparatus 10 according to one embodiment of the present invention; FIG. FIG. 2 is a diagram for explaining a configuration for detecting a logic change of a modem signal 110 by edge detection in CPUs 10 and 20; 2 is a diagram for explaining a configuration for detecting a logic change of a modem signal 110 by level detection in CPUs 10 and 20; FIG. 4 is a flow chart for explaining processing when the modem signal 110 monitoring processing is transferred from the CPU 10 to the CPU 20 in the image forming apparatus 40 according to the embodiment of the present invention. FIG. 7 is a diagram for explaining an operation during transition of monitoring processing from the CPU 10 to the CPU 20 explained in the flowchart of FIG. 6; FIG. 11 is a timing chart showing a case where there is no incoming call when the detection trigger of the modem signal 110 remains edge detection even during transition to monitoring processing. FIG. 10 is a timing chart showing a case where there is an incoming call when the detection trigger of the modem signal 110 remains edge detection even during transition to monitoring processing. FIG. 10 is a timing chart showing a case where there is no incoming call when the detection trigger of the modem signal 110 is switched from edge detection to level detection during transition of monitoring processing. FIG. 10 is a diagram showing a timing chart when there is an incoming call when the detection trigger of the modem signal 110 is switched from edge detection to level detection during transition of monitoring processing;

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing the configuration of an image forming system according to one embodiment of the present invention.

An image forming system according to one embodiment of the present invention comprises an image forming apparatus 40 and a terminal device 50 interconnected by a network 60, as shown in FIG. The terminal device 50 generates print data and transmits the generated print data to the image forming device 40 via the network 60 . The image forming device 40 receives the print data transmitted from the terminal device 50 and outputs an image corresponding to the print data on paper. Note that the image forming apparatus 40 is a so-called multifunction machine having multiple functions such as a printing function, a scanning function, a copying function, and a facsimile function. A telephone line 70 is connected to the image forming apparatus 40 for facsimile transmission/reception.

Next, the hardware configuration of the image forming apparatus 40 in the image forming system of this embodiment is shown in the block diagram of FIG.

The image forming apparatus 40 includes a hardware control CPU 10, a main CPU 20, and a FAX modem 30, as shown in FIG. In addition to the components shown in FIG. 2, the image forming apparatus 40 includes various components such as a printer unit, a scanner unit, an operation unit, and a display unit. In order to mainly describe the operation, description of other components is omitted.

The main CPU 20 controls the operation of the image forming apparatus 40 as a whole. The hardware control CPU 10 controls operations of various devices such as the FAX modem 30 . In the following description, the main CPU 20 is simply referred to as CPU20, and the hardware control CPU 10 is simply referred to as CPU10.

The FAX modem 30 transmits and receives FAX data to and from an external facsimile device or the like via the telephone line 70 . When the FAX modem 30 detects an incoming call from the outside via the telephone line 70, it changes the logic of the output modem signal 110. FIG.

In this embodiment, the FAX modem 30 sets the modem signal 110 to low level (hereinafter abbreviated as L level) when an incoming call from the outside is detected, and when an incoming call from the outside is not detected. In this case, the modem signal 110 is set to high level (hereinafter abbreviated as H level).

That is, the FAX modem 30 outputs the modem signal 110 as an interrupt signal to the CPUs 10 and 20, respectively, and notifies the presence or absence of an incoming call by changing the logic of the output modem signal 110. FIG.

When the CPU 10 detects a logic change in the modem signal 110, the CPU 10 controls the FAX modem 30 to execute processing according to the incoming call detected.

The block diagram of the image forming apparatus 40 shown in FIG. 2 shows the state in the normal operation mode.

The image forming apparatus 40 of the present embodiment has a function of operating in a sleep mode (or a power saving mode) in addition to the normal operating mode in order to reduce power consumption. The image forming apparatus 40 is configured to reduce power consumption by automatically shifting from a normal operation mode to a sleep mode, for example, when no operation has been performed for a preset time or longer.

FIG. 2 shows the state in the normal operation mode, and the CPU 10, CPU 20 and FAX modem 30 are all operating in the normal state. In the normal operation mode, the CPU 10 sets the interrupt detection state when detecting a logic change of the modem signal 110 to an enable state, that is, an interrupt permission state in terms of software.

Conversely, in the normal operation mode, the CPU 20 sets the state of interrupt detection when detecting a logic change in the modem signal 110 to a disabled state by software, that is, a state in which interrupts are not permitted, or a state in which interrupts are masked. have set.

Therefore, in this normal operation mode, the CPU 10 performs the process of detecting logic changes in the modem signal 110 from the FAX modem 30 .

Next, FIG. 3 shows the state of the image forming apparatus 40 in sleep mode.

In FIG. 3, the CPU 10 is in a power off state to reduce power consumption, and the FAX modem 30 is in a power saving state. In the FAX modem 30, the function of detecting the presence or absence of an incoming call from the telephone line 70 and changing the logic of the modem signal 110 by detecting the presence or absence of an incoming call from the telephone line 70 operates effectively even in the power saving state. If not, it cannot be executed.

In this sleep mode, the CPU 20 sets the interrupt detection state when detecting a logic change of the modem signal 110 to the enable state by software. In other words, in the sleep mode, the CPU 20 performs processing for detecting logic changes in the modem signal 110 from the FAX modem 30 .

That is, when shifting from the normal operation mode as shown in FIG. 2 to the sleep mode as shown in FIG. There is a need.

Then, when the CPU 20 shifts from the CPU 10 to the monitoring process of the logic change of the modem signal 110, the CPU 20 switches the detection method of the logic change of the modem signal 110 from edge detection to level detection, and detects the logic change of the modem signal 110 in the CPU 10. When the transition period ends after the interrupt processing is disabled, the interrupt processing associated with the logic change of the modem signal 110 is enabled, and the incoming call detected by the FAX modem 30 is responded to according to the logic state of the modem signal 110. Control the execution of processing.

Specifically, when the CPU 20 detects a logic change in the modem signal 110 after transitioning from the CPU 10 to monitoring processing for a logic change in the modem signal 110 and allowing an interrupt due to a logic change in the modem signal 110, the CPU 20 automatically detects a logic change in the modem signal 110. The operating mode of the device is switched from the sleep mode to the normal operating mode, and the CPU 10 is activated to process the incoming call detected by the FAX modem 30. FIG.

It should be noted that the CPU 20 controls the method of detecting a logic change in the modem signal 110, that is, switching the detection trigger from level detection to edge detection after the end of the transition period of the monitoring process.

Then, when the operation mode of the device itself is switched from the normal operation mode to the power saving mode, the CPU 20 shifts the monitoring processing of the logic change of the modem signal 110 from the CPU 10, and puts the CPU 10 into an operation stop state, that is, a power off state. and

Note that the CPU 10 controls the FAX modem 30 to be in the power saving state before the power is turned off.

Here, when the FAX modem 30 shifts from the normal operation state to the power saving state, the logic of the modem signal 110 is changed due to internally generated noise. This noise is called modem sleep noise. When modem sleep noise occurs, the modem signal 110 malfunctions and changes from H level to L level, indicating that there is an incoming call, even though there is no incoming call. .

Therefore, the CPU 10 controls the FAX modem 30 during the transition period of the management process so as to return the modem signal 110 output from the FAX modem 30 from the L level to the H level. This control is called modem clear, and the modem signal 110, which has malfunctioned due to modem stream noise, becomes H level and returns to a normal state.

Then, the CPU 10 once clears the detection state of the logic change of the modem signal 110 during the transition period of the monitoring process before the end of the transition period. Similarly, the CPU 20 once clears the detection state of the logic change of the modem signal 110 during the transition period of the monitoring process before the end of the transition period.

Next, a configuration for detecting a logic change of modem signal 110 in CPUs 10 and 20 will be described with reference to FIGS. 4 and 5. FIG.

Since the basic configurations of the CPUs 10 and 20 are the same, the CPUs 10 and 20 will be described simultaneously with reference to FIGS. 4 and 5. FIG.

The CPU 10 has an arithmetic processing section 11 , a detection section 12 and a register 13 , and the CPU 20 has an arithmetic processing section 21 , a detection section 22 and a register 23 .

FIG. 4 is a diagram for explaining a case where the detection units 12 and 22 are set to detect logic changes in the modem signal 110 by edge detection. However, it is a diagram for explaining a case where a setting is made to detect a logic change of the modem signal 110 by level detection.

When detecting a logic change of the modem signal 110 by the set detection method, the detection units 12 and 22 store the detection result in the registers 12 and 23 .

Specifically, as shown in FIG. 4, when the detection trigger is set to edge detection, the detection units 12 and 22 detect the falling edge of the modem signal 110 that changes from H level to L level. , 23 are stored with "1".

As shown in FIG. 5, the detection units 12 and 22 determine the level of the modem signal 110 when the detection trigger is set to level detection, and when the determination result is L level, the registers 12 and 23 stores "1" in

The registers 13 and 23 output an L-level detection signal when "0" is stored, and output an H-level detection signal when "1" is stored.

The arithmetic processing units 11 and 21 can be set by software as to whether to permit or not to permit interrupt processing when the detection signal changes from the L level to the H level. In the following description, as described above, a state in which interrupt processing is permitted is referred to as an Enable state, and a state in which interrupt processing is not permitted is referred to as a Disable state.

In other words, when the interrupt process is set to the Enable state and the detection signal is at H level, the arithmetic processing units 11 and 21 detect that the modem signal 110 has become L level, that is, that the FAX modem 30 has received a call. A state is detected.

Next, the processing when the monitoring processing of the modem signal 110 is shifted from the CPU 10 to the CPU 20 in the image forming apparatus 40 of this embodiment will be described with reference to the flowchart of FIG.

First, in the case of the normal operation mode, as shown in FIG. 2, the CPU 10 is set to enable interrupt detection, and the CPU 20 is set to disable interrupt detection.

Then, when the conditions for shifting the image forming apparatus 40 from the normal operation mode to the power saving mode are satisfied, the CPUs 10 and 20 change the modem signal 110 detection trigger from edge detection to level detection in step S101.

Then, when the CPU 20 instructs the CPU 10 to shift to the power saving mode, the CPU 10 changes the interrupt detection of the modem signal 110 from the Enable state to the Disable state in step S102.

Then, in step S103, the CPU 10 shifts the FAX modem 30 to the power saving state. At this time, in the FAX modem 30, modem sleep noise as described above occurs, and the modem signal 110 becomes L level.

Therefore, in step S104, the CPU 10 executes modem clear for the FAX modem 30 to return the modem signal 110 to H level.

The CPU 10 clears the detection signal in step S105, and the CPU 20 clears the detection signal in step S106.

In step S107, the CPU 20 changes the interrupt detection of the modem signal 110 from the disabled state to the enabled state.

Finally, in step S108, the CPU 20 turns off the power of the CPU 10 to complete the transition process.

After that, the CPU 20 executes processing for returning the detection trigger of the modem signal 110 from level detection to edge detection.

By executing such a transfer process, the transition process from the normal operation mode as shown in FIG. 2 to the sleep mode as shown in FIG. 3 is completed.

FIG. 7 shows the operation during the transfer of the monitoring process from the CPU 10 to the CPU 20 described in the flowchart of FIG.

(1) First, the CPU 20 instructs the CPU 10 to shift to the power saving state. At this time, the CPUs 10 and 20 switch the modem signal 110 detection trigger from edge detection to level detection.
(2) Then, the CPU 10 changes the interrupt detection from the Enable state to the Disable state.
(3) Then, the CPU 10 instructs the FAX modem 30 to shift to the power saving state, whereby the FAX modem 30 enters the power saving state. At that time, the modem signal 110 changes from H level to L level due to modem sleep noise.
(4) Therefore, the CPU 10 clears the FAX modem 30 . As a result, the modem signal 110 returns from L level to H level.

After that, the respective detection signals are cleared in the CPUs 10 and 20, and the CPU 20 changes the interrupt detection from the disabled state to the enabled state. Then, the CPU 10 is turned off, and the shift of the monitoring process ends. Note that the CPU 20 changes the modem signal 110 detection trigger from level detection to edge detection.

Next, the reason why the modem signal 110 detection trigger is switched from edge detection to level detection when the monitoring process of the modem signal 110 is transferred from the CPU 10 to the CPU 20 will be described with reference to the timing charts of FIGS. do.

First, FIGS. 8 and 9 show timing charts when the modem signal 110 detection trigger remains edge detection even during the transition to the monitoring process.

FIG. 8 shows a case where there is no incoming call during transition of the monitoring process, and FIG. 9 shows a case where there is an incoming call during transition of the management process.

First, the timing chart of FIG. 8 will be described. When the CPU 10 changes interrupt detection to the disabled state at time T2 and puts the FAX modem 30 into the power saving state at time T4, modem sleep noise generated in the FAX modem 30 causes the modem signal 110 to go low. .

Then, the CPUs 10 and 20 detect the logic change of the modem signal 110, and the respective detection signals are also in the detection state, ie, H level.

After that, at time T5, when the CPU 10 clears the FAX modem 30, the modem signal 110 returns to H level, which is an undetected state.

At time T6, the CPU 10 clears the detection signal, and at time T7, the CPU 20 clears the detection signal.

After that, at time T8, the CPU 20 changes the interrupt detection from the disabled state to the enabled state to complete the shift of the monitoring process.

In the timing chart of FIG. 8, no particular problem occurs because there is no incoming call during the transition period.

Next, the timing chart of FIG. 9 will be described. The CPU 10 changes interrupt detection to the disabled state at time T2.

In FIG. 9, at time T3, FAX modem 30 detects an incoming call from telephone line 70, and modem signal 110 becomes L level.

Then, the CPUs 10 and 20 detect the logic change of the modem signal 110, and the respective detection signals are also in the detection state, ie, H level.

At time T4, the CPU 10 puts the FAX modem 30 into the power saving state, so that modem sleep noise occurs in the FAX modem 30, but since the modem signal 110 has already taken L level, no logic change occurs.

After that, at time T5, the CPU 10 clears the FAX modem 30, but the modem signal 110 temporarily returns to H level, which is an undetected state. 110 remains at L level.

At time T6, the CPU 10 clears the detection signal, and at time T7, the CPU 20 clears the detection signal.

After that, at time T8, the CPU 20 changes the interrupt detection from the disabled state to the enabled state to complete the shift of the monitoring process. Even if it does, the CPU 20 cannot detect the incoming call state.

That is, in the timing chart of FIG. 9, the CPU 20 cannot detect the incoming call that occurred at time T3 during the transition period after the transition period is completed. Therefore, the image forming apparatus 40 remains in sleep mode, and incoming calls that occur during the transition period are not properly processed.

Next, FIGS. 10 and 11 show timing charts in the image forming apparatus 40 of the present embodiment in which the detection trigger of the modem signal 110 is switched from edge detection to level detection during transition of monitoring processing.

FIG. 10 shows a case where there is no incoming call during transition of the monitoring process, and FIG. 11 shows a case where there is an incoming call during transition of the management process.

First, the timing chart of FIG. 10 will be described. At time T1, the CPUs 10 and 20 perform processing for switching the modem signal 110 detection trigger from edge detection to level detection.

When the CPU 10 changes interrupt detection to the disabled state at time T2 and puts the FAX modem 30 into the power saving state at time T4, modem sleep noise generated in the FAX modem 30 causes the modem signal 110 to go low. becomes.

Then, the CPUs 10 and 20 detect the logic change of the modem signal 110, and the respective detection signals are also in the detection state, ie, H level.

After that, at time T5, when the CPU 10 clears the FAX modem 30, the modem signal 110 returns to H level, which is an undetected state.

At time T6, the CPU 10 clears the detection signal, and at time T7, the CPU 20 clears the detection signal. In the flowchart of FIG. 9, at times T6 and T7, the detection trigger of the modem signal 110 is edge detection. remain. That is, when a logic change of a certain signal is detected by edge detection, it is not detected as a logic change unless level inversion occurs such that the signal changes from H level to L level (or vice versa).

Thereafter, at time T8, the CPU 20 changes interrupt detection from the Disable state to the Enable state. Then, at time T9, the CPU 20 changes the detection trigger from level detection to edge detection, and the transition to the monitoring process is completed.

In the timing chart of FIG. 10, there is no incoming call during the transition period, so there is no big difference from the timing chart shown in FIG.

Next, the timing chart of FIG. 11 will be described. At time T1, the CPUs 10 and 20 perform processing for switching the modem signal 110 detection trigger from edge detection to level detection. Then, the CPU 10 changes interrupt detection to the disabled state at time T2.

Here, in FIG. 11, the FAX modem 30 detects an incoming call from the telephone line 70 at time T3, and the modem signal 110 becomes L level.

Then, the CPUs 10 and 20 detect the logic change of the modem signal 110, and the respective detection signals are also in the detection state, ie, H level.

At time T4, the CPU 10 puts the FAX modem 30 into the power saving state, so that modem sleep noise occurs in the FAX modem 30, but since the modem signal 110 has already taken L level, no logic change occurs.

After that, at time T5, the CPU 10 clears the FAX modem 30, but the modem signal 110 temporarily returns to H level, which is an undetected state. 110 remains at L level.

At time T6, the CPU 10 clears the detection signal, and at time T7, the CPU 20 clears the detection signal. In the timing chart of FIG. 11, at times T6 and T7, the modem signal 110 detection trigger is level detection. As a result, the detection signal becomes the detection state again, that is, the state of H level. That is, in this embodiment, when the logic state of the modem signal 110 is detected by level detection, it is possible to detect that the modem signal 110 has changed from the H level to the L level as long as the modem signal 110 is in the L level state. This is because

After that, at time T8, the CPU 20 changes the interrupt detection from the disabled state to the enabled state, and completes the transition of the monitoring process. At this time, since the detection signal of the CPU 20 is at the H level and the interrupt detection of the CPU 20 is in the Enable state, the CPU 20 can detect that the modem signal 110 is at the L level, that is, the incoming call state. is made of.

That is, in the timing chart of FIG. 11, the CPU 20 can detect the incoming call that occurred at time T3 during the transition period after the transition period is completed. Therefore, the image forming apparatus 40 cancels the sleep mode, shifts to the normal operation mode, and activates the CPU 10, so that an incoming call that occurs during the transition period is appropriately processed.

[Modification]
In the above embodiment, the case of using the FAX modem 30 that changes the logic of the output modem signal 110 upon detection of an incoming FAX call via the telephone line 70 has been described, but the present invention is limited to this. Instead, the present invention can be applied in the same manner even when a detection unit that changes the logic of the output interrupt signal upon detection of a change in an external factor is used.

10 hardware control CPU
11 arithmetic processing unit 12 detection unit 13 register 20 main CPU
21 arithmetic processing unit 22 detection unit 23 register 30 FAX modem 40 image forming apparatus 50 terminal device 60 network 70 telephone line 110 modem signal

Claims (7)

a detection unit that, when detecting an incoming call from the outside , changes the logic of an interrupt signal for notifying the presence or absence of the incoming call ;
a first control unit that performs control to execute processing corresponding to an incoming call detected by the detection unit when a logic change in the interrupt signal is detected;
controlling the first control unit and changing a detection method of the logic change of the interrupt signal from edge detection to level detection when transitioning from the first control unit to monitoring processing of the logic change of the interrupt signal; and after the first control unit disallows interrupt processing associated with a logic change of the interrupt signal, when the transition period ends, interrupt processing associated with a logic change of the interrupt signal is permitted, a second control unit that performs control such that processing corresponding to the incoming call detected by the detection unit is executed according to the logic state of the interrupt signal;
Information processing device with 2. The information processing apparatus according to claim 1, wherein said second control unit performs control to switch a method of detecting a logic change of said interrupt signal from level detection to edge detection after a transition period ends. 3. The information processing apparatus according to claim 1, wherein said second control unit once clears the detection state of the logic change of said interrupt signal during the transition period before the end of the transition period. When the operation mode of the device is switched from the normal operation mode to the power saving mode, the second control unit shifts the monitoring process of the logic change of the interrupt signal from the first control unit, 4. The information processing apparatus according to any one of claims 1 to 3, wherein the first control unit is in an operation stop state. The first control unit controls the detection unit to be in a power saving state before entering the operation stop state,
5. The information processing apparatus according to claim 4, wherein the detection unit changes the logic of the interrupt signal due to internally generated noise when shifting from the normal operation state to the power saving state. In the second control unit, the monitoring of the logic change of the interrupt signal is transferred from the first control unit, the interrupt accompanying the logic change of the interrupt signal is permitted, and the logic change of the interrupt signal is permitted. is detected, the operation mode of the device is switched from the power saving mode to the normal operation mode, and the first control unit is activated to execute processing according to the incoming call detected by the detection unit. 6. The information processing device according to 4 or 5. detecting an incoming call from the outside and changing the logic of an interrupt signal for notifying the presence or absence of the incoming call;
a first control unit, upon detecting a logic change of the interrupt signal, performing control to execute processing according to the detected incoming call ;
In a second control unit that controls the first control unit, when transitioning from the first control unit to monitoring processing of a logic change in the interrupt signal, a method for detecting a logic change in the interrupt signal is provided. switching from edge detection to level detection;
In the second control unit, when the transition period ends after the first control unit disallows the interrupt processing associated with the logic change of the interrupt signal, interrupt processing associated with the logic change of the interrupt signal is performed. and performing control so that processing corresponding to the detected incoming call is executed according to the logic state of the interrupt signal;
A program that causes a computer to run

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