Section 9 Interrupt Controller (INTC)
Rev. 1.00 Oct. 01, 2007 Page 264 of 1956
REJ09B0256-0100
Bit Bit
Name
Initial
Value R/W
Description
16
NMIFL
0
R/W
NMI Interrupt Request Signal Detection
Indicates whether an NMI interrupt request signal has
been detected. This bit is automatically set to 1 when
the INTC detects an NMI interrupt request. Write 0 to
clear the bit. Writing 1 is ignored.
[When reading]
1: NMI is detected
0: NMI is not detected
[When writing]
0: The NMI flag is cleared
1: Writing 1 is ignored
15 to 0
—
All 0
R
Reserved
These bits are always read as 0. The write value should
always be 0.
9.3.12
User Interrupt Mask Level Register (USERIMASK)
USERIMASK is a 32-bit readable and writable with conditions register that sets the acceptable
interrupt level. When addresses in area 7 are accessed using the MMU address translation
function, USERIMASK can be accessed in user mode. Since only USERIMASK is allocated in
the 64-Kbyte page (other INTC registers are allocated to a different area), it can be set to be
accessed in user mode.
Interrupts whose priority levels are lower than the level set in the UIMASK bit are masked. If the
value of H'F is set to the UIMASK bit, all interrupts other than the NMI are masked.
Interrupts whose priority levels are higher than the level set in the UIMASK bit are accepted under
the following conditions:
•
The corresponding interrupt mask bit in the interrupt mask register is cleared to 0 (the interrupt
is enabled).
•
The priority level set in the IMASK bit in SR is lower than that of the interrupt.
Even if interrupts are accepted, the UIMASK value is not changed.
USERIMASK is initialized to H'0000 0000 (all interrupts are enabled) when returning from a
power-on reset or a manual reset.
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 ...