12
12-44
Rev.1.0
SERIAL I/O
12.4 Receive Operation in CSIO Mode
Figure 12.4.3 Example of CSIO Reception (When Received Normally)
12.4.6 Typical CSIO Receive Operation
The following shows a typical receive operation in CSIO mode.
Note 1 : Change of the Interrupt Controller "SIO Receive Interrupt Control Register" interrupt request bit
Note 2 : When receive-finished interrupt is enabled (DMA transfer can also be requested at the same
timing)
Note 3 : The Interrupt Controller IVECT register is read or "SIO Receive Interrupt Control Register" interrupt
request bit cleared
SIO receive interrupt
(Note 1)
(When receive-finished
interrupt is selected)
Clock stopped
Automatically
cleared for each
receive operation
performed
Receive-finished bit
Read from receive buffer
(When receive error
interrupt is selected)
Receive-finished interrupt
(Note 2)
Interrupt request accepted
(Note 3)
No interrupt request
Internal clock selected
External clock selected
<CSIO on transmit side>
SCLKO
RXD
SCLKI
TXD
Receive clock
(SCLKI)
Set
Receive enable bit
Cleared
Receive status bit
<CSIO on receive side>
<CSIO on receive side>
Set by a write to
transmit buffer
D7
D6
D5
D4
D3
D2
D1
D0
RXD
: Processing by software
: Interrupt generation
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 ...