Section 10 Interrupt Controller (INTC)
Rev.1.00 Dec. 13, 2005 Page 314 of 1286
REJ09B0158-0100
IRQ interrupt requests held in the detection circuit are not cleared even if a 0 is written to the
corresponding bit in INTPRI. The IRQ interrupt sources detected by the INTC (which will be
cleared when they are accepted by the CPU) can be confirmed by reading INTREQ.
When not using holding function (ICR0.LSH = 1), the interrupt request is not held but the
interrupt source is set to the corresponding bit in INTREQ that is to be cleared when the CPU
accepts it.
•
To clear IRQ edge-detection interrupt requests
To clear an IRQ edge-detection interrupt request from the IRQ/
IRL[7:0]
pins, read the value 1
from the corresponding IRn (n = 0 to 7) bit in INTREQ and then write a 0 to the same bit.
An IRQ interrupt request detected by the INTC is not cleared even if a 1 is written to the
corresponding bit in INTMSK0.
Содержание SH7780 Series
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Страница 292: ...Section 9 L Memory Rev 1 00 Dec 13 2005 Page 242 of 1286 REJ09B0158 0100 ...
Страница 450: ...Section 11 Local Bus State Controller LBSC Rev 1 00 Dec 13 2005 Page 400 of 1286 REJ09B0158 0100 ...
Страница 492: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Dec 13 2005 Page 442 of 1286 REJ09B0158 0100 ...
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Страница 692: ...Section 16 Watchdog Timer and Reset Rev 1 00 Dec 13 2005 Page 642 of 1286 REJ09B0158 0100 ...
Страница 726: ...Section 18 Timer Unit TMU Rev 1 00 Dec 13 2005 Page 676 of 1286 REJ09B0158 0100 ...
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Страница 1032: ...Section 25 Audio Codec Interface HAC Rev 1 00 Dec 13 2005 Page 982 of 1286 REJ09B0158 0100 ...
Страница 1070: ...Section 26 Serial Sound Interface SSI Module Rev 1 00 Dec 13 2005 Page 1020 of 1286 REJ09B0158 0100 ...
Страница 1104: ...Section 27 NAND Flash Memory Controller FLCTL Rev 1 00 Dec 13 2005 Page 1054 of 1286 REJ09B0158 0100 ...
Страница 1150: ...Section 28 General Purpose I O GPIO Rev 1 00 Dec 13 2005 Page 1100 of 1286 REJ09B0158 0100 ...
Страница 1184: ...Section 29 User Break Controller UBC Rev 1 00 Dec 13 2005 Page 1134 of 1286 REJ09B0158 0100 ...
Страница 1266: ...Section 31 Electrical Characteristics Rev 1 00 Dec 13 2005 Page 1216 of 1286 REJ09B0158 0100 ...
Страница 1328: ...Appendix Rev 1 00 Dec 13 2005 Page 1278 of 1286 REJ09B0158 0100 ...
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