h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 579
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h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
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15.2.11 Interrupt Register (IRR)
The interrupt register (IRR) is a 16-bit readable/writable register containing status flags for the
various interrupt sources.
Note: * Only a write of 1 is permitted, to clear the flag.
Bit 15—Overload Frame Interrupt Flag: Status flag indicating that the HCAN has transmitted
an overload frame.
Bit 14—Bus Off Interrupt Flag: Status flag indicating the bus off state caused by the transmit
error counter.
Bit 15
IRR7
0
1
Bit 14
IRR6
0
1
Initial value:
Initial value:
IRR
Description
[Clearing condition]
Writing 1
Overload frame transmission
[Setting conditions]
When overload frame is transmitted
Description
[Clearing condition]
Writing 1
Bus off state caused by transmit error
[Setting condition]
When TEC ≥ 256
R/W:
R/W:
Bit:
Bit:
R/(W) *
IRR7
15
—
—
0
7
0
R/(W) *
IRR6
14
—
—
0
6
0
R/(W) *
IRR5
13
—
—
0
5
0
R/(W) *
R/(W) *
IRR12
IRR4
12
Section 15 Controller Area Network (HCAN)
0
4
0
Rev. 5.00 Sep 22, 2005 page 553 of 1136
R/(W) *
IRR3
11
—
—
0
3
0
IRR2
10
—
—
R
0
2
0
REJ09B0257-0500
IRR1
IRR9
R
R
9
0
1
0
(Initial value)
(Initial value)
R/(W) *
R/(W) *
IRR0
IRR8
8
1
0
0
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