S3C8285 View Datasheet(PDF) - Samsung

Part Name

Description

Manufacturer

S3C8285

8-BIT CMOS MICROCONTROLLERS

Samsung 

Table of Contents (Continued)

Chapter 3

Addressing Modes

Overview ....................................................................................................................................................... 3-1

Register Addressing Mode (R) ..................................................................................................................... 3-2

Indirect Register Addressing Mode (IR) ....................................................................................................... 3-3

Indexed Addressing Mode (X) ...................................................................................................................... 3-7

Direct Address Mode (DA)............................................................................................................................ 3-10

Indirect Address Mode (IA)........................................................................................................................... 3-12

Relative Address Mode (RA) ........................................................................................................................ 3-13

Immediate Mode (IM).................................................................................................................................... 3-14

Chapter 4

Control Registers

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

Chapter 5

Interrupt Structure

Overview ....................................................................................................................................................... 5-1

Interrupt Types ..................................................................................................................................... 5-2

S3C828B/C8289/C8285 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

Instruction Pointer (IP) ......................................................................................................................... 5-17

Fast Interrupt Processing..................................................................................................................... 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

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S3C828B/F828B/C8289/F8289/C8285/F8285 MICROCONTROLLER

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