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How do i confirm completion of transmit operation without an interrupt

Latest Updated:12/01/2011

Question:

How can I confirm the completion of a transmit/receive operation, without using an interrupt?

Answer:

If IE of M_CTRLn is cleared or a mask is set for CANIC, no interrupt occurs in the CPU.
At this point, check the pending interrupts using the CnINT1/0 bit of CnINTP.
If the bit is set, clear it. In this case, E_INT0 and E_INT1 of CnIE must be enabled.
Suitable Products
V850ES/Fx
V850/SF1