12
12-9
Ver.0.10
SERIAL I/O
12.2 Serial I/O Related Registers
D0
1
2
3
4
5
6
D7
IRQT2
IRQR2
IRQT3
IRQR3
<When reset : H'00>
D
Bit Name
Function
R
W
0 - 3
No functions assigned
0
—
4
IRQT2 (SIO2 transmit-finished
0 : Interrupt not requested
interrupt request status bit) 1 : Interrupt requested
5
IRQR2 (SIO2 receive interrupt
0 : Interrupt not requested
request status bit)
1 : Interrupt requested
6
IRQT3 (SIO3 transmit-finished
0 : Interrupt not requested
interrupt request status bit) 1 : Interrupt requested
7
IRQR3 (SIO3 receive interrupt
0 : Interrupt not requested
request status bit)
1 : Interrupt requested
W = : Only writing a 0 is effective; when you write a 1, the previous value is retained.
Transmit/receive interrupt requests from SIO2 and SIO3 are described below.
[Setting the interrupt request status bit]
This bit can only be set in hardware, and cannot be set in software.
[Clearing the interrupt request status bit]
This bit is cleared by writing a 0 in software.
Note : If the status bit is set in hardware at the same time it is cleared in software, the
former has priority and the status bit is set.
When writing to the SIO Interrupt Status Register, make sure the bits you want to clear are set to 0
and all other bits are set to 1. The bits which are thus set to 1 are unaffected by writing in software
and retain the value they had before you write.
12.2.2 SIO Interrupt Control Registers
■
SIO23 Interrupt Status Register (SI23STAT)
<Address: H'0080 0100>
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 ...