12
12-52
Ver.0.10
SERIAL I/O
12.6 Transmit Operation in UART Mode
Figure 12.6.4 Transmit Operation during UART Mode (Hardware Processing)
Note : This applies when transmit interrupt has been enabled by SIO Interrupt Mask Register.
The following processing is
automatically executed in hardware
• Transfer content of transmit buffer to
transmit shift register
• Set transmit buffer empty bit to 1
Transmit data
Y (Successive
transmission)
Transmit
conditions
met?
Y
N
N
Clear transmit status bit to 0
Transmit DMA
transfer request
Transmit interrupt
request
(Note)
UART transmit
operation starts
UART transmit
operation completed
Transmit
conditions
met?
Summary of Contents for M32170F3VFP
Page 42: ...1 1 24 Ver 0 10 OVERVIEW 1 4 Pin Layout This is a blank page ...
Page 56: ...2 2 14 Ver 0 10 This is a blank page ...
Page 88: ...3 3 32 Ver 0 10 ADDRESS SPACE 3 7 Notes on Address Space This is a blank page ...
Page 270: ...9 9 40 Ver 0 10 DMAC 9 4 Precautions about the DMAC This is a blank page ...
Page 614: ...12 12 64 Ver 0 10 This is a blank page SERIAL I O 12 9 Precautions on Using UART Mode ...
Page 756: ...17 17 10 Ver 0 10 RAM BACKUP MODE 17 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Page 762: ...18 18 6 Ver 0 10 OSCILLATION CIRCUIT 18 2 Clock Generator Circuit This is a blank page ...
Page 831: ...CHAPTER 22 CHAPTER 22 TYPICAL CHARACTERISTICS 22 1 A D Conversion Characteristics ...
Page 833: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Page 841: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...