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SN8A1702AX Datasheet(PDF) 79 Page - SONiX Technology Company

Part # SN8A1702AX
Description  8-Bit Micro-Controller
PDF  112 Pages
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Manufacturer  SONIX [SONiX Technology Company]
Direct Link  http://www.sonix.com.tw
Logo SONIX - SONiX Technology Company

SN8A1702AX Datasheet(HTML) 79 Page - SONiX Technology Company

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Preliminary
SN8P1702A/SN8P1703A
8-bit micro-controller build-in 12-bit ADC
SONiX TECHNOLOGY CO., LTD
Page 79
Revision 0.5
9
9
9 INTERRUPT
OVERVIEW
The SN8P1702A/SN8P1703A provides 3 interrupt sources, including two internal interrupts (TC0, TC1) and one
external interrupts (INT0 ). The external interrupt can wakeup the chip from power down mode to high-speed normal
mode. The external clock input pins of INT0 are shared with P0.0 pins. Once interrupt service is executed, the GIE bit
in STKP register will clear to “0” for stopping other interrupt request. 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. The user can
program the chip to check INTRQ’s content for setting executive priority.
Figure 9-1. The 7 Interrupts
Note: The GIE bit must enable and all interrupt operations work.
INTRQ
3-bit
Latchs
TC0IRQ
TC1IRQ
P00IRQ
Interrupt
enable
gating
Global interrupt request signal
Interrupt vector address (0008H)
TC0 time out
TC1 time out
INTEN Interrupt enable reg ister
INT0 trigger
INTRQ
3-bit
Latchs
TC0IRQ
TC1IRQ
P00IRQ
Interrupt
enable
gating
Global interrupt request signal
Interrupt vector address (0008H)
TC0 time out
TC1 time out
INTEN Interrupt enable reg ister
INT0 trigger



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