Samsung S3C8275X - Manual (Page 9)

vi S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X MICROCONTROLLER
Table of Contents
(Continued)
Chapter 4 Control Registers
Overview ....................................................................................................................................................... 4-1
Chapter 5 Interrupt Structure
Overview ....................................................................................................................................................... 5-1
Interrupt Types ..................................................................................................................................... 5-2
S3C8275X/C8278X/C8274X Interrupt Structure ................................................................................. 5-3
Interrupt Vector Addresses .................................................................................................................. 5-4
Enable/Disable Interrupt Instructions (EI, DI) ...................................................................................... 5-6
System-Level Interrupt Control Registers............................................................................................ 5-6
Interrupt Processing Control Points ..................................................................................................... 5-7
Peripheral Interrupt Control Registers ................................................................................................. 5-8
System Mode Register (SYM) ............................................................................................................. 5-9
Interrupt Mask Register (IMR) ............................................................................................................. 5-10
Interrupt Priority Register (IPR)............................................................................................................ 5-11
Interrupt Request Register (IRQ)......................................................................................................... 5-13
Interrupt Pending Function Types........................................................................................................ 5-14
Interrupt Source Polling Sequence ...................................................................................................... 5-15
Interrupt Service Routines ................................................................................................................... 5-15
Generating Interrupt Vector Addresses ............................................................................................... 5-16
Nesting of Vectored Interrupts ............................................................................................................. 5-16
Instruction Pointer (IP) ......................................................................................................................... 5-16
Fast Interrupt Processing..................................................................................................................... 5-16
Chapter 6 Instruction Set
Overview ....................................................................................................................................................... 6-1
Data Types........................................................................................................................................... 6-1
Register Addressing............................................................................................................................. 6-1
Addressing Modes ............................................................................................................................... 6-1
Flags Register (FLAGS)....................................................................................................................... 6-6
Flag Descriptions ................................................................................................................................. 6-7
Instruction Set Notation........................................................................................................................ 6-8
Condition Codes .................................................................................................................................. 6-12
Instruction Descriptions........................................................................................................................ 6-13