9
9-32
DMAC
32180 Group User’s Manual (Rev.1.0)
Table 9.3.10 DMA Transfer Request Sources and Generation Timings on DMA9
REQSL9
DMA Transfer Request Source
DMA Transfer Request Generation Timing
0 0
Software start
When any data is written to the DMA9 Software Request Generation Register
0 1
Serial I/O3 (transmit buffer empty) When serial I/O3 transmit buffer is empty
1 0
MJT (TIN8 input signal)
When MJT TIN8 input signal is generated
1 1
Extended DMA9 transfer request
The source selected by the DMA9 Channel Control Register 1 (DM9CNT1)
source selected
REQESEL9 bits (see below)
REQESEL9 DMA Transfer Request Source
DMA Transfer Request Generation Timing
0000
One DMA8 transfer completed
When one DMA8 transfer is completed (cascade mode)
0001
MJT (TOU0_7irq)
MJT TOU0_7 interrupt source
0010
A-D0 conversion completed
When A-D0 conversion is completed
0011
MJT (input event bus 1)
When MJT input event bus 1 signal is generated
0100
MJT (input event bus 3)
When MJT input event bus 3 signal is generated
0101
MJT (output event bus 2)
When MJT output event bus 2 signal is generated
0110
MJT (output event bus 3)
When MJT output event bus 3 signal is generated
0111
A-D0 conversion completed
When A-D0 conversion is completed
1000
MJT (TIN0 input signal)
When MJT TIN0 input signal is generated
1001
MJT (TIO8_udf)
When MJT TIO8 underflow occurs
1010
|
Settings inhibited
–
1111
9.3 Functional Description of the DMAC
Summary of Contents for M32R/ECU Series
Page 17: ...12 This page is blank for reasons of layout...
Page 712: ...CHAPTER 18 OSCILLATOR CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit...
Page 794: ...CHAPTER 22 TYPICAL CHARACTERISTICS...
Page 796: ...APPENDIX 1 MECHANICAL SPECIFICAITONS Appendix 1 1 Dimensional Outline Drawing...
Page 798: ...APPENDIX 2 INSTRUCTION PROCESSING TIME Appendix 2 1 32180 Instruction Processing Time...
Page 802: ...APPENDIX 3 PROCESSING OF UNUSED PINS Appendix 3 1 Example Processing of Unused Pins...
