vi S3C84I8/F84I8/C84I9/F84I9 MICROCONTROLLER
Table of Contents
(Continued)
Chapter 4
Control Registers
Overview ....................................................................................................................................................... 4-1
Chapter 5
Interrupt Structure
Overview ....................................................................................................................................................... 5-1
Interrupt Types ..................................................................................................................................... 5-2
S3C84I8/F84I8/C84I9/F84I9 Interrupt Structure.................................................................................. 5-4
Interrupt Vector Addresses .................................................................................................................. 5-6
Enable/Disable Interrupt Instructions (EI, DI) ...................................................................................... 5-8
System-Level Interrupt Control Registers............................................................................................ 5-8
Interrupt Processing Control Points ..................................................................................................... 5-9
Peripheral Interrupt Control Registers ................................................................................................. 5-10
System Mode Register (SYM) ............................................................................................................. 5-11
Interrupt Mask Register (IMR) ............................................................................................................. 5-12
Interrupt Priority Register (IPR)............................................................................................................ 5-13
Interrupt Request Register (IRQ)......................................................................................................... 5-15
Interrupt Pending Function Types........................................................................................................ 5-16
Interrupt Source Polling Sequence ...................................................................................................... 5-17
Interrupt Service Routines ................................................................................................................... 5-17
Generating interrupt Vector Addresses ............................................................................................... 5-18
Nesting of Vectored Interrupts ............................................................................................................. 5-18
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