Samsung C8274X User Manual

Overview ....................................................................................................................................................... 4-1

 

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

 

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