Next 
  Introduction  
 
  Explanation of words 
  Documentation conventions  
  Chapter 1 Overview  
 
  1.1 SCU Overview 
 System configuration diagram 
 Block diagram 
  1.2 SCU mapping 
  1.3 SCU register map 
 Level 2-0 DMA set register 
 DMA forced stop register 
 DMA status register 
 DSP program control port 
 DSP program RAM data port 
 DSP data RAM address port 
 DSP data RAM data port 
 Timer 0 compare register 
 Timer 1 set data register 
 Timer 1 mode register 
 Interrupt mask register 
 Interrupt status register 
 A-Bus interrupt acknowledge register 
 A-Bus setting register 
 A-Bus refresh register 
 SCU SD-RAM selection register 
 SCU version register  
  Chapter 2 Operation  
 
  2.1 DMA transfer 
 Basic DMA operation 
 DMA mode 
 Specific usage examples 
  2.2 Interrupt control 
 Blanking interrupt 
 Timer interrupt 
 DSP end interrupt 
 Sound-Request interrupt 
 SMPC interrupt 
 PAD interrupt 
 DMA end interrupt 
 DMA-Illegal Interrupt 
 Sprite drawing end interrupt 
2.3 DSP
 DSP control from main CPU  
  Chapter 3 Register details  
 
  3.1 Register list 
  3.2 DMA control register 
 Level 2-0 DMA set register 
 DMA mode, address update, activation factor selection register 
 DMA forced stop register 
 DMA status register 
  3.3 DSP control port 
 DSP program control port 
 DSP program RAM data port 
 DSP data RAM address port 
 DSP data RAM data port 
  3.4 Timer register 
 Timer 0 compare register 
 Timer 1 set data register 
 Timer 1 mode register 
  3.5 Interrupt Control Register 
 Interrupt mask register 
 Interrupt status register 
  3.6 A-Bus control register 
 A-Bus interrupt acknowledge register 
 A-Bus setting register 
 A-Bus refresh register 
  3.7 SCU control register 
 SCU SDRAM selection register 
 SCU version register  
  Chapter 4 DSP control  
 
  4.1 DSP internal block diagram 
  4.2 Instruction list 
  4.3 Operand execution method 
 JUMP instruction execution 
 LOOP program execution 
 DMA instruction execution 
 Execute END instruction 
  4.4 Executing special processing 
 How to load a program by DMA instruction 
 Repeat one instruction 
 Subroutine program execution 
  4.5 Instruction details 
 Operation instruction 
 Load Immediate instruction 
 DMA instruction 
 JUMP instruction 
 LOOP BOTTOM instruction 
 END instruction  
  Appendix  

  SCU register map list 
  SCU DSP Assembler Instruction Manual 1994/7/8 Edition 
  SCU DSP Simulator Instruction Manual 1994/8/25 version