HD64F2168 Datasheet, PDF (215/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

[5] Read DTVECR again and check that it is set to the vector number (H'60). If it is not, this
indicates that the write failed. This is presumably because an interrupt occurred between steps
3 and 4 and led to a different software activation. To activate this transfer, go back to step 3.
[6] If the write was successful, the DTC is activated and a block of 128 bytes of data is transferred.
[7] After the transfer, an SWDTEND interrupt occurs. The interrupt handling routine should clear
the SWDTE bit to 0 and perform wrap-up processing.
Rev. 3.00, 03/04, page 175 of 830