s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 213
s3c72m9
Manufacturer Part Number
s3c72m9
Description
The S3c72m5/s3c72m7/s3c72m9 Single-chip Cmos Microcontroller Has Been Designed For High Performance Using Samsung S
Manufacturer
Samsung Semiconductor, Inc.
Datasheet
1.S3C72M9.pdf
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S3C72M5/C72M7/C72M9/P72M9 (Preliminary Spec)
7
OVERVIEW
The S3C72M5/C72M7/C72M9 interrupt control circuit has five functional components:
— Interrupt enable flags (IEx)
— Interrupt request flags (IRQx)
— Interrupt master enable register (IME)
— Interrupt priority register (IPR)
— Power-down release signal circuit
Three kinds of interrupts are supported:
— Internal interrupts generated by on-chip processes
— External interrupts generated by external peripheral devices
— Quasi-interrupts used for edge detection and as clock sources
External interrupts
Internal interrupts
Quasi-interrupts
Interrupt Type
INTERRUPTS
Table 7-1. Interrupt Types and Corresponding Port Pin(s)
INT0, INT1, INT4, INTK
INTB, INTT0, INTT1 (INTT1A, INTT1B), INTS
INT2
INTW
Interrupt Name
P1.0, P1.1, P1.3, K0–K7
Not applicable
P1.2
Not applicable
Corresponding Port Pins
INTERRUPTS
7-1
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