SH7052 Datasheet, PDF (544/919 Pages) Renesas Technology Corp – SuperHTM RISC engine

• Bit 15—Overload Frame/Bus Off Recovery Interrupt Flag (IRR7): Status flag indicating that
the HCAN has transmitted an overload frame or recovered from the bus off state.
Bit 15: IRR7
0
1
Description
[Clearing condition]
Writing 1
(Initial value)
Overload frame transmission or recovery from bus off state
[Setting conditions]
Error active/error passive state
• When overload frame is transmitted
Bus off state
• When 11 recessive bits is received 128 times (REC ≥ 128)
• Bit 14—Bus Off Interrupt Flag (IRR6): Status flag indicating the bus off state caused by the
transmit error counter.
Bit 14: IRR6
0
1
Description
[Clearing condition]
Writing 1
Bus off state caused by transmit error
[Setting condition]
When TEC ≥ 256
(Initial value)
• Bit 13—Error Passive Interrupt Flag (IRR5): Status flag indicating the error passive state
caused by the transmit/receive error counter.
Bit 13: IRR5
0
1
Description
[Clearing condition]
Writing 1
Error passive state caused by transmit/receive error
[Setting condition]
When TEC ≥ 128 or REC ≥ 128
(Initial value)
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