SN8F5708 datasheet(56/204 Pages) SONIX

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SN8F5708 Series

System Operating Mode

Datasheet Rev. 2.4

9.3 IDLE Mode

The IDLE mode is another system ideal status not like STOP mode. In STOP mode, all functions and

hardware devices are disabled. But in IDLE mode, the system clock source keeps running, so the

power consumption of IDLE mode is larger than STOP mode. In IDLE mode, the program isn’t

executed, but the timer with wake-up function is active as enabled, and the timer clock source is

the non-stop system clock. The IDLE mode has 2 wake-up sources. One is the P0/P1 level change

trigger wake-up. The other one is any interrupt in EAL = 1 & function interrupt enable. That’s mean

users can setup any function with interrupt enable, and the system is waked up until the interrupt

issue. Inserting IDLE mode is controlled by idle bit of PCON register. When idle = 1, the system

inserts into IDLE mode. After system wake-up from IDLE mode, the idle bit is disabled (zero status)

automatically.



The program stops executing, and full functions are disabled.

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Only the timer with wake-up function is active.

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The oscillator to be the system clock source keeps running, and the other oscillators operation

is depend on system operation mode configuration.

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If inserting IDLE mode from normal mode, the system insets to normal mode after wake-up.

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The IDLE mode wake-up sources are P0/P1 level change trigger.

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If the function clock source is system clock, the functions are workable as enabled and under

IDLE mode, e.g. Timer, PWM, event counter…



All interrupt in EAL = 1 & function interrupt enable can wake-up in IDLE mode.

SN8F5708 Datasheet(PDF) 56 Page - SONiX Technology Company