h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 111
h8s-2649
Manufacturer Part Number
h8s-2649
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2649.pdf
(766 pages)
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5.3.1
The IPR registers set priorities (levels 7 to 0) for interrupts other than NMI.
The correspondence between interrupt sources and IPR settings is shown in table 5.2. Setting a
value in the range from H'0 to H'7 in the 3-bit groups of bits 0 to 2 and 4 to 6 sets the priority of
the corresponding interrupt.
Bit
7
6
5
4
3
2
1
0
Bit Name
IPR6
IPR5
IPR4
IPR2
IPR1
IPR0
Interrupt Priority Registers A to H, J, K, M, and O (IPRA to IPRH, IPRJ, IPRK,
IPRM, and IPRO)
Initial
Value
0
1
1
1
0
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Sets the priority of the corresponding interrupt source.
000: Priority level 0 (Lowest)
001: Priority level 1
010: Priority level 2
011: Priority level 3
100: Priority level 4
101: Priority level 5
110: Priority level 6
111: Priority level 7 (Highest)
Sets the priority of the corresponding interrupt source.
000: Priority level 0 (Lowest)
001: Priority level 1
010: Priority level 2
011: Priority level 3
100: Priority level 4
101: Priority level 5
110: Priority level 6
111: Priority level 7 (Highest)
Description
Reserved
These bits are always read as 0.
Reserved
These bits are always read as 0.
Rev. 2.00 Dec. 05, 2005 Page 73 of 724
Section 5 Interrupt Controller
REJ09B0200-0200
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