S3C8235 データシートの表示（PDF） - Samsung

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S3C8235

8-BIT CMOS MICROCONTROLLERS USERS MANUAL

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







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

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

S3C8238/C8235 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







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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