
vi
S3C880A/F880A MICROCONTROLLER
Table of Contents
(Continued)
Chapter 4
Control Registers
Overview.............................................................................................................................................4-1
Chapter 5
Interrupt Structure
Overview.............................................................................................................................................5-1
Interrupt Types ............................................................................................................................5-1
S3C880A/F880A Interrupt Structure ..............................................................................................5-2
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) ...................................................................................................5-12
Interrupt Pending Function Types..................................................................................................5-13
Interrupt Source Polling Sequence................................................................................................5-14
Interrupt Service Routines.............................................................................................................5-14
Generating Interrupt Vector Addresses ..........................................................................................5-15
Nesting of Vectored Interrupts.......................................................................................................5-15
Instruction Pointer (IP).................................................................................................................5-15
Fast Interrupt Processing.............................................................................................................5-16
Chapter 6
SAM8 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