9
9-7
Rev.1.0
9.2.1 DMA Channel Control Registers
■
DMA0 Channel Control Register (DM0CNT)
<Address: H'0080 0410>
D0
1
2
3
4
5
6
D7
MDSEL0
TREQF0
REQSL0
TENL0
TSZSL0
SADSL0
DADSL0
<When reset: H'00>
D
Bit Name
Function
R
W
0
MDSEL0
0: Normal mode
(Selects DMA0 transfer mode)
1: Ring buffer mode
1
TREQF0
0: Not requested
(DMA0 transfer request flag)
1: Requested
2, 3
REQSL0
00: Software start or one DMA2
(Selects cause of DMA0 request)
transfer completed
01: A-D0 conversion completed
10: Timer (TOM00_udf)
11: Extended request cause (Note)
4
TENL0
0: Disables transfer
(DMA0 transfer enable)
1: Enables transfer
5
TSZSL0
0: 16 bits
(Selects DMA0 transfer size)
1: 8 bits
6
SADSL0
0: Fixed
(Selects DMA0 source address direction) 1: Increment
7
DADSL0
0: Fixed
(Selects DMA0 destination
1: Increment
address direction)
W= : Only writing 0 is effective. Writing 1 has no effect, the bit retains the value it had before writing.
Note: When "Extended request cause" is selected, be sure to set the DMA0 Request Extended Cause
Register (DM0REQ).
DMAC
9.2 DMAC Related Registers
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 ...