vi S3C84E5/C84E9/P84E9 MICROCONTROLLER
Table of Contents (Continued)
Chapter 4 Control Registers
Overview.............................................................................................................................................4-1
Chapter 5 Interrupt Structure
Overview.............................................................................................................................................5-1
Interrupt Types............................................................................................................................5-2
S3C84E5/C84E9/P84E9 Interrupt Structure...................................................................................5-3
Interrupt Vector Addresses...........................................................................................................5-5
Enable/Disable Interrupt Instructions (EI, DI)..................................................................................5-7
System-Level Interrupt Control Registers .......................................................................................5-7
Interrupt Processing Control Points...............................................................................................5-8
Peripheral Interrupt Control Registers ............................................................................................5-9
System Mode Register (SYM)......................................................................................................5-10
Interrupt Mask Register (IMR).......................................................................................................5-11
Interrupt Priority Register (IPR).....................................................................................................5-12
Interrupt Request Register (IRQ)...................................................................................................5-14
Interrupt Pending Function Types..................................................................................................5-15
Interrupt Source Polling Sequence................................................................................................5-16
Interrupt Service Routines.............................................................................................................5-16
Generating Interrupt Vector Addresses..........................................................................................5-17
Nesting of Vectored Interrupts.......................................................................................................5-17
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