SN8P2318 Series
C-type LCD, RFC 8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 60
Version 1.5
6
6
6
INTERRUPT
6.1 OVERVIEW
This MCU provides 5 interrupt sources, including 3 internal interrupt (T0/TC0/T1) and 2 external interrupt (INT0/INT1).
The external interrupt can wake-up 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 registe
r 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. The interrupt request signals are stored in INTRQ register.
INTEN Interrupt Enable Register
Interrupt
Enable
Gating
INTRQ
8-Bit
&
CMnM
2-Bit
Latchs
P00IRQ
P01IRQ
T0IRQ
Interrupt Vector Address (0008H)
Global Interrupt Request Signal
INT0 Trigger
T1 Time Out
TC0IRQ
T0 Time Out
T1IRQ
TC0 Time Out
INT1 Trigger
Note: The GIE bit must enable during all interrupt operation.