SN8P2711A
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 60
Version 0.1
6
6
6
INTERRUPT
6.1 OVERVIEW
This MCU provides five interrupt sources, including three internal interrupt (TC0/TC1/ADC) and two external interrupt
(INT0/INT1). 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.
INTEN Interrupt Enable Register
Interrupt
Enable
Gating
INTRQ
5-Bit
Latchs
P00IRQ
P01IRQ
TC0IRQ
TC1IRQ
ADCIRQ
Interrupt Vector Address (0008H)
Global Interrupt Request Signal
INT0 Trigger
INT1 Trigger
TC0 Time Out
TC1 Time Out
ADC Converting Successfully
Note: The GIE bit must enable during all interrupt operation.