Section 13 Controller Area Network (HCAN)
Rev. 3.00 Mar. 14, 2006 Page 501 of 804
REJ09B0104-0300
13.5 Interrupt
Sources
Table 13.4 lists the HCAN interrupt sources. These sources can be masked except the reset
processing interrupt by power-on reset (IRR0). Masking is implemented using the mailbox
interrupt mask register (MBIMR), interrupt mask register (IMR), and IRQ enable register (IER).
For details on the interrupt vector of each interrupt source, refer to section 5, Interrupt Controller.
Table 13.4 HCAN Interrupt Sources
Name Description
Interrupt
Flag
DMAC
Activation
ERS0/OVR0 Error
passive interrupt (TEC
≥
128 or REC
≥
128)
IRR5
Not possible
Bus off interrupt (TEC
≥
256)
IRR6
Reset processing interrupt by power-on reset
IRR0
Remote
frame
reception
IRR2
Error warning interrupt (TEC
≥
96)
IRR3
Error warning interrupt (REC
≥
96)
IRR4
Overload frame transmission interrupt
IRR7
Unread message overwrite
IRR9
Detection of CAN bus operation in HCAN sleep mode
IRR12
RM0
Mailbox 0 message reception
IRR1
Possible
RM1
Mailbox 1-15 message reception
IRR1
Not possible
SLE0
Message transmission/cancellation
IRR8
Not possible
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