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