Section 5 Interrupt Controller (INTC)
Rev. 2.00 Mar 09, 2006 page 159 of 906
REJ09B0292-0200
5.3
Register Descriptions
5.3.1
Interrupt Priority Level Setting Register A (IPRA)
Interrupt priority level setting register A (IPRA) is a 16-bit read/write register that assigns priority
levels from 0 to 15 to on-chip peripheral module interrupts. IPRA is initialized to H'0000 by a
reset. It is not initialized in standby mode. Unless otherwise specified, ‘reset’ refers to both power-
on and manual resets throughout this manual.
Bit:
15
14
13
12
11
10
9
8
—
—
—
—
DMAC
IP3
DMAC
IP2
DMAC
IP1
DMAC
IP0
Initial value:
0
0
0
0
0
0
0
0
R/W:
R
R
R
R
R/W
R/W
R/W
R/W
Bit:
7
6
5
4
3
2
1
0
WDT
IP3
WDT
IP2
WDT
IP1
WDT
IP0
—
—
—
—
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/W
R/W
R/W
R/W
R
R
R
R
Bits 15 to 12—Reserved: These bits are always read as 0. The write value should always be 0.
Bits 11 to 8—Direct Memory Access Controller (DMAC) Interrupt Priority Level 3 to 0
(DMACIP3–DMACIP0): These bits set the direct memory access controller (DMAC) interrupt
priority level. There are four bits, so levels 0–15 can be set. The same level is set for both two
DMAC channels. When interrupts occur simultaneously, channel 0 has priority.
Bits 7 to 4—Watchdog Timer (WDT) Interrupt Priority Level 3 to 0 (WDTIP3–WDTIP0): These
bits set the watchdog timer (WDT) interrupt priority level and bus state controller (BSC) interrupt
priority level. There are four bits, so levels 0–15 can be set. When WDT and BSC interrupts occur
simultaneously, the WDT interrupt has priority.
Bits 3 to 0—Reserved: These bits are always read as 0. The write value should always be 0.
Содержание SH7616
Страница 10: ...Rev 2 00 Mar 09 2006 page x of xxvi ...
Страница 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Страница 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Страница 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Страница 662: ...Section 14 Serial Communication Interface with FIFO SCIF Rev 2 00 Mar 09 2006 page 636 of 906 REJ09B0292 0200 ...
Страница 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Страница 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Страница 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Страница 935: ...SH7616 Hardware Manual ...