Renesas RX100 Series User Manual page 283

RX13T Group
(4) When Starting a New Sequence on completion of a Sequence
Figure 16.22 is an example for starting the next and new sequence on completion of the first sequence.
The DTC refers to the DTC index table, and reads the transfer information corresponding to the obtained sequence
number s.
When the transfer information in which the CHNE, INDX, and SQEND bits are 0, 1, and 1 respectively is read, the
specified transfer is executed, then a new sequence number is obtained from the lower 8 bits of the transferred data.
The DTC again refers to the DTC index table, and reads the transfer information corresponding to the obtained sequence
number k and then starts a new sequence.
When the transfer information in which the CHNE, INDX, and SQEND bits are 0, 0, and 1 respectively is read, the
sequence ends after the specified transfer is executed.
Transfer request n
Select sequence
INDX=1
DTCVBR + 0 × 4
DTCVBR + 1 × 4
DTCVBR + 2 × 4
DTCVBR + n × 4
DTCVBR + 255 × 4
DTCIBR + 0 × 4
DTCIBR + 1 × 4
DTCIBR + 2 × 4
DTCIBR + k × 4
DTCIBR + s × 4
DTCIBR + 255 × 4
Figure 16.22 Example When Starting a New Sequence on Completion of a Sequence
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
CHNE=1 CHNE=1
DTC vector table
DTC index table
16. Data Transfer Controller (DTCb)
Select sequence
SQEND=1
CHNE=1
INDX=1
Transfer information
INDX = 1
Transfer information
CHNE = 1
INDX = 0
SQEND = 0
CHNE = 1
INDX = 0
SQEND = 0
CHNE = 0
INDX = 1
SQEND = 1
CHNE = 1
INDX = 0
SQEND = 0
CHNE = 1
INDX = 0
SQEND = 0
CHNE = 0
INDX = 1
SQEND = 1
CHNE=1 SQEND=1
Data transfer
Data
Sequence number = s
Data transfer
Data
Sequence number = k
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