12
12-63
Rev.1.0
SERIAL I/O
12.7 Receive Operation in UART Mode
Figure 12.7.4 Example of UART Reception (When Overrun Error Occurred)
Note 1 : Change of the Interrupt Controller "SIO Receive Interrupt Control Register" interrupt request bit
Note 2 : When receive-finished interrupt is enabled
Note 3 : When receive error interrupt is enabled
Note 4 : This is done by clearing the receive enable bit to 0.
Note 5 : The Interrupt Controller IVECT register is read or "SIO Receive Interrupt Control Register" interrupt
request bit cleared
First data reception
completed
Overrun error bit
Receive buffer not read
during this interval
Overrun error bit cleared
(Note 4)
Receive error interrupt
(Note 3)
<UART on transmit side>
RXD
TXD
Set
<UART on receive side>
<UART on receive side>
ST
D7
SP
ST
D7
SP
RXD
Set
SIO receive interrupt
(Note 1)
(When receive-finished
interrupt is selected)
(When receive error
interrupt is selected)
Receive-finished interrupt
(Note 2)
Interrupt request accepted (Note 5)
Interrupt request accepted (Note 5)
: Processing by software
: Interrupt generation
Next data reception
completed
(Note 5)
Receive enable bit
(SIO Receive
Control Register)
Receive-finished bit
Содержание 32172
Страница 20: ... This is a blank page 16 ...
Страница 21: ...1 1 Overview 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Layout CHAPTER 1 CHAPTER 1 OVERVIEW ...
Страница 44: ...1 1 24 Rev 1 0 This is a blank page Overview 1 4 Pin Layout ...
Страница 58: ...2 2 14 Rev 1 0 This is a blank page CPU 2 6 Data Formats ...
Страница 122: ...4 4 26 Rev 1 0 This is a blank page EIT 4 13 Precautions on EIT ...
Страница 200: ...7 7 6 Rev 1 0 This is a blank page RESET 7 4 Precautions to Be Taken Immediately after Reset ...
Страница 240: ...8 8 40 Rev 1 0 This is a blank page INPUT OUTPUT PORTS AND PIN FUNCTIONS 8 5 Precautions on Input Output Ports ...
Страница 298: ...9 9 58 Rev 1 0 This is a blank page DMAC 9 4 Precautions on Using DMAC ...
Страница 416: ...10 10 118 Rev 1 0 This is a blank page INPUT OUTPUT TIMERS 10 6 TOM Output Related 16 bit Timers ...
Страница 658: ...14 14 16 Rev 1 0 REAL TIME DEBUGGER RTD 14 4 Typical Connection with the Host This is a blank page ...
Страница 718: ...16 16 16 Rev 1 0 This is a blank page D A CONVERTERS 16 3 Functional Description of the D A Converters ...
Страница 766: ...18 18 22 Rev 1 0 WAIT CONTROLLER 18 3 Typical Operation of the Wait Controller This is a blank page ...
Страница 776: ...19 19 10 Rev 1 0 RAM BACKUP MODE 19 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Страница 777: ...CHAPTER 20 CHAPTER 20 OSCILLATION CIRCUIT 20 1 Oscillator Circuit 20 2 Clock Generator Circuit ...
Страница 782: ...20 20 6 Rev 1 0 OSCILLATION CIRCUIT 20 2 Clock Generator Circuit This is a blank page ...
Страница 856: ...23 23 26 Rev 1 0 This is a blank page ELECTRICAL CHARACTERISTICS 23 6 AC Characteristics ...
Страница 857: ...24 1 A D Conversion Characteristics CHAPTER 24 CHAPTER 24 STANDARD CHARACTERISTICS ...
Страница 859: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Страница 861: ...Appendix 2 1 M32R E Instruction Processing Time APPENDIX 2 APPENDIX 2 INSTRUCTION PROCESSING TIME ...
Страница 865: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...