Section 10 Interrupt Controller (INTC)
Rev.1.00 Dec. 13, 2005 Page 259 of 1286
REJ09B0158-0100
Note: When an IRQ pin is set for level input (IRQnS1 = 1), the interrupt source is held until the
CPU accepts the interrupt (this is also true for other interrupts). Therefore, even if an
interrupt source is disabled before this LSI returns from sleep mode, branching of
processing to the interrupt handler when this LSI returns from sleep mode is guaranteed. A
held interrupt can be cleared by setting the corresponding interrupt mask bit (the IM bit in
the interrupt mask register) to 1.
10.3.3 Interrupt
Priority Register (INTPRI)
INTPRI is a 32-bit readable/writable register used to set the priorities of IRQ[7:0] (as levels from
15 to 0). These settings are only valid for IRQ/
IRL7
to IRQ/
IRL4
or IRQ/
IRL3
to IRQ/
IRL0
when
set up as individual IRQ interrupts by setting the IRLM0 or IRLM1 bit in ICR0 to 1.
16
17
18
19
20
21
22
23
24
25
26
27
28
29
31
30
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
IP3
IP2
IP1
IP0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
Initial value:
R/W:
0
1
2
3
4
5
6
7
8
9
10
11
12
13
15
14
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
IP7
IP6
IP5
IP4
Bit:
Initial value:
R/W:
Bit Name
Initial
Value R/W Description
31 to 28
IP0
H'0
R/W
Set the priority of IRQ0 as an individual pin interrupt request.
27 to 24
IP1
H'0
R/W
Set the priority of IRQ1 as an individual pin interrupt request.
23 to 20
IP2
H'0
R/W
Set the priority of IRQ2 as an individual pin interrupt request.
19 to 16
IP3
H'0
R/W
Set the priority of IRQ3 as an individual pin interrupt request.
15 to 12
IP4
H'0
R/W
Set the priority of IRQ4 as an individual pin interrupt request.
11 to 8
IP5
H'0
R/W
Set the priority of IRQ5 as an individual pin interrupt request.
7 to 4
IP6
H'0
R/W
Set the priority of IRQ6 as an individual pin interrupt request.
3 to 0
IP7
H'0
R/W
Set the priority of IRQ7 as an individual pin interrupt request.
Interrupt priorities should be established by setting values from H'F to H'1 in each of the 4-bit
fields. A larger value corresponds to a higher priority. When the value H'0 is set in a field, the
corresponding interrupt is masked (initial value).
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 ...
Страница 674: ...Section 15 Clock Pulse Generator CPG Rev 1 00 Dec 13 2005 Page 624 of 1286 REJ09B0158 0100 ...
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 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 ...
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Страница 1266: ...Section 31 Electrical Characteristics Rev 1 00 Dec 13 2005 Page 1216 of 1286 REJ09B0158 0100 ...
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