8.3 Input/Output Port Related Registers ....................................................................... 8-6
8.3.1 Port Data Registers ............................................................................. 8-8
8.3.2 Port Direction Registers ...................................................................... 8-9
8.3.3 Port Operation Mode Registers ........................................................... 8-10
8.4 Port Peripheral Circuits .......................................................................................... 8-31
8.5 Precautions on Input/Output Ports ......................................................................... 8-39
CHAPTER 9 DMAC
9.1 Outline of DMAC .................................................................................................... 9-2
9.2 DMAC Related Registers ....................................................................................... 9-5
9.2.1 DMA Channel Control Registers ........................................................ 9-7
9.2.2 DMA Request Extended Cause Register ........................................... 9-18
9.2.3 DMA Software Request Generation Registers ................................... 9-29
9.2.4 DMA Source Address Registers ......................................................... 9-30
9.2.5 DMA Destination Address Registers .................................................. 9-31
9.2.6 DMA Transfer Count Registers .......................................................... 9-32
9.2.7 DMA Interrupt Request Status Registers ........................................... 9-33
9.2.8 DMA Interrupt Mask Registers ........................................................... 9-35
9.3 Functional Description of DMAC ............................................................................ 9-39
9.3.1 Cause of DMA Request ...................................................................... 9-39
9.3.2 DMA Transfer Processing Procedure ................................................. 9-49
9.3.3 Starting DMA ...................................................................................... 9-50
9.3.4 Priority of DMA Channels ................................................................... 9-50
9.3.5 Gaining and Releasing Control of the Internal Bus ............................ 9-51
9.3.6 Transfer Unit ....................................................................................... 9-51
9.3.7 Transfer Count ................................................................................... 9-51
9.3.8 Address Space ................................................................................... 9-52
9.3.9 Transfer Operation ............................................................................. 9-52
9.3.10 End of DMA and Interrupt ................................................................. 9-55
9.3.11 Register Status after End of DMA Transfer ...................................... 9-55
9.4 Precautions on Using DMAC ................................................................................. 9-56
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Summary of Contents for 32172
Page 20: ... This is a blank page 16 ...
Page 21: ...1 1 Overview 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Layout CHAPTER 1 CHAPTER 1 OVERVIEW ...
Page 44: ...1 1 24 Rev 1 0 This is a blank page Overview 1 4 Pin Layout ...
Page 58: ...2 2 14 Rev 1 0 This is a blank page CPU 2 6 Data Formats ...
Page 122: ...4 4 26 Rev 1 0 This is a blank page EIT 4 13 Precautions on EIT ...
Page 200: ...7 7 6 Rev 1 0 This is a blank page RESET 7 4 Precautions to Be Taken Immediately after Reset ...
Page 298: ...9 9 58 Rev 1 0 This is a blank page DMAC 9 4 Precautions on Using DMAC ...
Page 776: ...19 19 10 Rev 1 0 RAM BACKUP MODE 19 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Page 782: ...20 20 6 Rev 1 0 OSCILLATION CIRCUIT 20 2 Clock Generator Circuit This is a blank page ...
Page 856: ...23 23 26 Rev 1 0 This is a blank page ELECTRICAL CHARACTERISTICS 23 6 AC Characteristics ...
Page 857: ...24 1 A D Conversion Characteristics CHAPTER 24 CHAPTER 24 STANDARD CHARACTERISTICS ...
Page 859: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Page 865: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...