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
Содержание M32170F3VFP
Страница 19: ...CHAPTER 1 CHAPTER 1 OVERVIEW 1 1 Outline of the 32170 1 2 Block Diagram 1 3 Pin Function 1 4 Pin Layout ...
Страница 42: ...1 1 24 Ver 0 10 OVERVIEW 1 4 Pin Layout This is a blank page ...
Страница 56: ...2 2 14 Ver 0 10 This is a blank page ...
Страница 88: ...3 3 32 Ver 0 10 ADDRESS SPACE 3 7 Notes on Address Space This is a blank page ...
Страница 192: ...6 6 58 Ver 0 10 INTERNAL MEMORY 6 9 Precautions to Be Taken When Rewriting Flash Memory This is a blank page ...
Страница 270: ...9 9 40 Ver 0 10 DMAC 9 4 Precautions about the DMAC This is a blank page ...
Страница 498: ...10 10 228 Ver 0 10 MULTIJUNCTION TIMERS 10 9 TOM Output related 16 bit Timer This is a blank page ...
Страница 550: ...11 11 52 Ver 0 10 A D CONVERTERS 11 4 Precautions on Using A D Converters This is a blank page ...
Страница 614: ...12 12 64 Ver 0 10 This is a blank page SERIAL I O 12 9 Precautions on Using UART Mode ...
Страница 710: ...14 14 16 Ver 0 10 REAL TIME DEBUGGER RTD 14 4 Typical Connection with the Host This is a blank page ...
Страница 746: ...16 16 20 Ver 0 10 WAIT CONTROLLER 16 3 Typical Operation of the Wait Controller This is a blank page ...
Страница 756: ...17 17 10 Ver 0 10 RAM BACKUP MODE 17 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Страница 757: ...CHAPTER 18 CHAPTER 18 OSCILLATION CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit ...
Страница 762: ...18 18 6 Ver 0 10 OSCILLATION CIRCUIT 18 2 Clock Generator Circuit This is a blank page ...
Страница 798: ...19 19 36 Ver 0 10 JTAG 19 6 Precautions about Board Design when Connecting JTAG This is a blank page ...
Страница 830: ...21 21 24 Ver 0 10 PRELIMINARY PRELIMINARY This is a blank page ELECTRICAL CHARACTERISTICS 21 5 AC Characteristics ...
Страница 831: ...CHAPTER 22 CHAPTER 22 TYPICAL CHARACTERISTICS 22 1 A D Conversion Characteristics ...
Страница 833: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Страница 837: ...Appendix 2 1 32170 Instruction Processing Time APPENDIX 2 APPENDIX 2 INSTRUCTION PROCESSING TIME ...
Страница 841: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...