HD64F2638F20J Datasheet, PDF (681/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 16 Controller Area Network (HCAN)
16.2.11 Interrupt Register (IRR)
The interrupt register (IRR) is a 16-bit readable/writable register containing status flags for the
various interrupt sources.
IRR
Bit:
Initial value:
R/W:
15
IRR7
0
R/(W)^*
14
IRR6
0
R/(W)^*
13
IRR5
0
R/(W)^*
12
IRR4
0
R/(W)^*
11
IRR3
0
R/(W)^*
10
IRR2
0
R
9
IRR1
0
R
8
IRR0
1
R/(W)^*
Bit: 7
6
5
4
3
2
1
0
—
—
— IRR12 —
—
IRR9 IRR8
Initial value: 0
0
0
0
0
0
0
0
R/W: —
—
— R/(W)^* —
—
R
R/(W)^*
Note: * Only a write of 1 is permitted, to clear the flag.
Bit 15—Overload Frame Interrupt Flag (IRR7): Status flag indicating that the HCAN has
transmitted an overload frame.
Bit 15: IRR7
0
1
Description
[Clearing condition]
• Writing 1
Overload frame transmission
[Setting condition]
• When overload frame is transmitted
(Initial value)
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 631 of 1458