Section 9 Interrupt Controller (INTC)
Rev. 1.00 Oct. 01, 2007 Page 310 of 1956
REJ09B0256-0100
INTMSK0/INTMSK1 and INTMSKCLR0/INTMSKCLR1 and reading from
INTMSK0/INTMSK1 should be consecutively executed.
9.7.2
Notes on Setting IRQ7/
IRL7
to IRQ0/
IRL0
Pin Function
When switching the IRQ7/
IRL7
to IRQ0/
IRL0
pin function, it is possible that the INTC may hold
an interrupt by mistake. Therefore, to prevent detecting unintentional interrupts, mask both all
IRQ and IRL interrupts and then switch the IRQ7/
IRL7
to IRQ0/
IRL0
pin function.
Table 9.9
Switching Sequence of IRQ7/
IRL7
to IRQ0/
IRL0
Pin Function
Sequence ITEM
PROCEDURE
1
IRL interrupt request and IRQ interrupt
request masking
Write 1 to all bits in INTMSK0 and
INTMSK1
2 IRQ7/
IRL7
to IRQ4/
IRL4
pins setting to
IRL7 to IRL4 interrupt request input
Write 010 to the PTSEL3[14:12] bits and
the PTSEL3[2:0] bits in PSEL3 of GPIO
Write 00 to the PL3MD[1:0], PL1MD[1:0],
PL0MD[1:0] bits in PLCR
3 IRQ7/
IRL7
to IRQ0/
IRL0
pins setting to
IRL or IRQ interrupt request input
Set the IRLM[1:0] bit in ICR0
4
IRL and IRQ interrupt detection start
Write 1 to the corresponding bit in
INTMSKCLR0 and INTMSKCLR1
9.7.3
To Clear IRQ and IRL Interrupt Requests
Clearing procedure of the interrupt held in the INTC is as follows
•
To clear IRL interrupt requests
To clear an IRL interrupt request from the IRQ3/
IRL3
to IRQ0/
IRL0
pins, write 1 to the IM10
bit in INTMSK1, and to clear an IRL interrupt request from the IRQ7/
IRL7
to IRQ4/
IRL4
pins, write 1 to the IM11 bit in INTMSK1. The IRL interrupt requests detected by the INTC is
not cleared even if each of the corresponding interrupt level is masked by setting INTMSK2.
•
To clear IRQ level-sense interrupt requests
To clear an IRQ level-sense interrupt request from the IRQ7/
IRL7
to IRQ0/
IRL0
pins, write 1
to the corresponding mask bit (IM07 to IM00) in INTMSK0.
The IRQ interrupt requests detected by the INTC is not cleared even if 0 is written to a
corresponding bit in INTPRI. The IRQ interrupt sources detected by the INTC (be cleared)
Содержание SH7763
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Страница 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Страница 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Страница 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Страница 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Страница 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Страница 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Страница 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Страница 686: ...Section 14 Direct Memory Access Controller DMAC Rev 1 00 Oct 01 2007 Page 620 of 1956 REJ09B0256 0100 ...
Страница 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Страница 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Страница 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Страница 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Страница 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Страница 1060: ...Section 23 Gigabit Ethernet Controller GETHER Rev 1 00 Oct 01 2007 Page 994 of 1956 REJ09B0256 0100 ...
Страница 1062: ...Section 24 IP Security Accelerator SECURITY Rev 1 00 Oct 01 2007 Page 996 of 1956 REJ09B0256 0100 ...
Страница 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Страница 1184: ...Section 27 Serial Communication Interface with FIFO SCIF Rev 1 00 Oct 01 2007 Page 1118 of 1956 REJ09B0256 0100 ...
Страница 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Страница 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Страница 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Страница 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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Страница 2026: ...SH7763 Hardware Manual ...