SN8P275X Series
8-bit micro-controller build-in 12-bit ADC
SONiX TECHNOLOGY CO., LTD
Page 64
Version 0.7
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INTERRUPT
6.1 OVERVIEW
This MCU provides nine interrupt sources, including six internal interrupt (T0/TC0/TC1/SIO/ADC/MSP) and three
external interrupt (INT0/INT1/INT2). The external interrupt can wakeup the chip while the system is switched from
power down mode to high-speed normal mode, and interrupt request is latched until return to normal mode. Once
interrupt service is executed, the GIE bit in STKP register will clear to “0” for stopping other interrupt request. On the
contrast, when interrupt service exits, the GIE bit will set to “1” to accept the next interrupts’ request. All of the interrupt
request signals are stored in INTRQ register.
Note: The GIE bit must enable during all interrupt operation.
