CHAPTER 19 IEBus CONTROLLER (V850/SB2)
User’s Manual U13850EJ4V0UM
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(1) Interrupt (INTIE1) occurrence
If NACK is transmitted (hardware processing) in the data field, an interrupt (INTIE1) is not issued to the CPU,
and the same data is retransmitted from the slave.
If the receive data is not read in time until the next data is received, the hardware automatically transmits
NACK.
(2) Frame end processing
The vector interrupt processing in <2> judges whether the data has been correctly received within one frame.
If the data has not been correctly received (if the number of data to be received in one frame could not be
received), a request to retransmit the data must be made to the slave in the next communication frame.
Содержание MPD703030A
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