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14.5.3 CSI transmission/reception
A flowchart showing an example of setting for CSI transmission/reception is shown below.
• Transmission/reception (256 bytes) of CSI00
• DMA channel 0 is used to read received data and DMA channel 1 is used to write transmit data.
• DMA start source: INTCSI00
(If the same start source is specified for DMA channels 0 and 1, the data of channel 0 is transferred, and then
that of channel 1)
• Interrupt of CSI00 is specified by IFC03 to IFC00 = IFC13 to IFC10 (bits 3 to 0 of the DMCn register) = 0110B.
• Data is transferred (received) from FFF10H of the CSI data register (SIO00) to FF100H to FF1FFH of RAM (256
bytes). (In successive transmission/reception mode, the data that is to be received when the first buffer empty
interrupt occurs is invalid because the data has not been received.)
• Transfers FF201H to FF2FFH (255 bytes) of RAM to FFF10H of the data register (SIO00) of CSI (transmission)
(Transmit data is written to the first byte by using software (an instruction).)
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CHAPTER 14 DMA CONTROLLER
User's Manual U17854EJ9V0UD
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