HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 129
HD6417144
Manufacturer Part Number
HD6417144
Description
32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417144.pdf
(930 pages)
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6.3.4
Interrupt priority registers are ten 16-bit readable/writable registers that set priority levels from 0
to 15 for interrupts except NMI. For the correspondence between interrupt request sources and
IPR, refer to table 6.2. Each of the corresponding interrupt priority ranks are established by setting
a value from H'0 to H'F in each of the four-bit groups 15 to 12, 11 to 8, 7 to 4 and 3 to 0. Reserved
bits that are not assigned should be set H'0 (B'0000.)
Bit
15
14
13
12
11
10
9
8
Bit Name Initial Value
IPR15
IPR14
IPR13
IPR12
IPR11
IPR10
IPR9
IPR8
Interrupt Priority Registers A to J (IPRA to IPRJ)
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
These bits set priority levels for the corresponding
interrupt source.
0000: Priority level 0 (lowest)
0001: Priority level 1
0010: Priority level 2
0011: Priority level 3
0100: Priority level 4
0101: Priority level 5
0110: Priority level 6
0111: Priority level 7
1000: Priority level 8
1001: Priority level 9
1010: Priority level 10
1011: Priority level 11
1100: Priority level 12
1101: Priority level 13
1110: Priority level 14
1111: Priority level 15 (highest)
These bits set priority levels for the corresponding
interrupt source.
0000: Priority level 0 (lowest)
0001: Priority level 1
0010: Priority level 2
0011: Priority level 3
0100: Priority level 4
0101: Priority level 5
0110: Priority level 6
0111: Priority level 7
1000: Priority level 8
1001: Priority level 9
1010: Priority level 10
1011: Priority level 11
1100: Priority level 12
1101: Priority level 13
1110: Priority level 14
1111: Priority level 15 (highest)
Rev.4.00 Mar. 27, 2008 Page 85 of 882
6. Interrupt Controller (INTC)
REJ09B0108-0400
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