5
5-11
Ver.0.10
W= : Can be set and cleared only when the type of input source is "Edge-recognized" type (with
only one interrupt source being input).
(1) IREQ (Interrupt Request) bit (D3 or D11)
When an interrupt request from some internal peripheral I/O occurs, the corresponding IREQ
(Interrupt Request) bit is set to 1.
This bit can be set and cleared in software for only edge-recognized interrupt sources (and not for
level-recognized interrupt sources). Also, when the IREQ bit is set by an interrupt request
generated by an edge-recognized interrupt source, it is automatically cleared to 0 by reading out
the Interrupt Vector Register (IVECT) (not cleared in the case of level-recognized interrupt
sources).
If the IREQ bit is cleared in software at the same time it is set by an interrupt request generated,
clearing in software has priority. Also, if the IREQ bit is cleared by reading out the IVECT register
at the same time it is set by an interrupt request generated, clearing by a read of IVECT has
priority.
<When reset: H''07>
D
Bit Name
Function
R
W
0 – 2
No functions assigned
0
–
(8-10)
3
IREQ (Interrupt request)
0 : Interrupt is not requested
(11)
1 : Interrupt is requested
4
No functions assigned
0
–
(12)
5-7
ILEVEL (Interrupt priority level) 000 : Interrupt priority level 0
(13-15)
001 : Interrupt priority level 1
010 : Interrupt priority level 2
011 : Interrupt priority level 3
100 : Interrupt priority level 4
101 : Interrupt priority level 5
110 : Interrupt priority level 6
111 : Interrupt priority level 7 (Interrupt-disabled state)
D0
1
2
3
4
5
6
D7
(
D8
9
10
11
12
13
14
D15)
IREQ
ILEVEL
INTERRUPT CONTROLLER (ICU)
5.3 ICU-Related Registers
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 ...