SN8P2740 Series
ADC, OP-amp, Comparator 8-Bit Micro-Controller
6
INTERRUPT
6.1 OVERVIEW
This MCU provides 7 interrupt sources, including 6 internal interrupt (T0/TC0/CM0/CM1/CM2/ADC) and 1 external
interrupt (INT0). 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. Most of the interrupt request
signals are stored in INTRQ register.
INTEN Interrupt Enable Register
P00IRQ
INT0 Trigger
T0 Time Out
Interrupt Vector Address (0008H)
Global Interrupt Request Signal
T0IRQ
TC0IRQ
ADCIRQ
CM0IRQ
CM1IRQ
CM2IRQ
Interrupt
Enable
Gating
TC0 Time Out
INTRQ
7-Bit
Latchs
ADC Converting End
Comparator 0 Trigger
Comparator 1 Trigger
Comparator 2 Trigger
Note: The GIE bit must enable during all interrupt operation.
SONiX TECHNOLOGY CO., LTD
Page 57
Version 2.0
SONIX [ SONIX TECHNOLOGY COMPANY ]
