9
9-6
DMAC
32180 Group User’s Manual (Rev.1.0)
9.2.1 DMA Channel Control Registers
DMA0 Channel Control Register 0 (DM0CNT0)
<Address: H’0080 0410>
1
2
3
4
5
6
b7
b0
SADSL0 DADSL0
MDSEL0
TREQF0
REQSL0
TENL0
TSZSL0
0
0
0
0
0
0
0
0
<After reset: H’00>
b
Bit Name
Function
R
W
0
MDSEL0
0: Normal mode
R
W
DMA0 transfer mode select bit
1: Ring buffer mode
1
TREQF0
0: Transfer not requested
R(Note 1)
DMA0 transfer request flag bit
1: Transfer requested
2, 3
REQSL0
00: Software start or one DMA2 transfer completed
R
W
DMA0 transfer request source select bit
01: A-D0 conversion completed
10: MJT (TIO8_udf)
11: Extended DMA0 transfer request source select
(DMA0 Channel Control Register 1)
4
TENL0
0: Disable transfer
R
W
DMA0 transfer enable bit
1: Enable transfer
5
TSZSL0
0: 16 bits
R
W
DMA0 transfer size select bit
1: 8 bits
6
SADSL0
0: Fixed
R
W
DMA0 source address direction select bit
1: Increment
7
DADSL0
0: Fixed
R
W
DMA0 destination address direction select bit
1: Increment
Note 1: Only writing "0" is effective. Writing "1" has no effect; the bit retains the value it had before the write.
DMA0 Channel Control Register 1 (DM0CNT1)
<Address: H’0080 0411>
9
10
11
12
13
14
b15
b8
REQESEL0
0
0
0
0
0
0
0
0
<After reset: H’00>
b
Bit Name
Function
R
W
8–11
No function assigned. Fix to "0".
0
0
12–15
REQESEL0
0000: MJT (input event bus 2)
R
W
Extended DMA0 transfer request source select bit
0001: MJT (TID0_udf/ovf)
0010: CAN (CAN0_S0/S15)
0011: Common 1) MJT (input event bus 1)
0100: Common 2) MJT (input event bus 3)
0101: Common 3) MJT (output event bus 2)
0110: Common 4) MJT (output event bus 3)
0111: Common 5) AD0 conversion completed
1000: Common 6) MJT (TIN0S)
1001: Common 7) MJT (TIO8_udf)
1010: Settings inhibited
1111: Settings inhibited
9.2 DMAC Related Registers
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Содержание M32R/ECU Series
Страница 17: ...12 This page is blank for reasons of layout...
Страница 18: ...CHAPTER 1 OVERVIEW 1 1 Outline of the 32180 Group 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Assignments...
Страница 712: ...CHAPTER 18 OSCILLATOR CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit...
Страница 794: ...CHAPTER 22 TYPICAL CHARACTERISTICS...
Страница 795: ...22 22 2 32180 Group User s Manual Rev 1 0 TYPICAL CHARACTERISTICS To be written at a later time...
Страница 796: ...APPENDIX 1 MECHANICAL SPECIFICAITONS Appendix 1 1 Dimensional Outline Drawing...
Страница 798: ...APPENDIX 2 INSTRUCTION PROCESSING TIME Appendix 2 1 32180 Instruction Processing Time...
Страница 802: ...APPENDIX 3 PROCESSING OF UNUSED PINS Appendix 3 1 Example Processing of Unused Pins...