Renesas RX100 Series User Manual page 281

RX13T Group
(2) When Executing a Single Chain Transfer
Figure 16.20 is an example of a sequence for a single chain transfer.
The DTC refers to the DTC index table, and reads the transfer information corresponding to the obtained sequence
number q.
While the values of the CHNE, INDX, and SQEND bits are 1, 0, and 0 respectively, the specified chain transfer is
executed. 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 + q × 4
DTCIBR + 255 × 4
Figure 16.20 Example of Sequence of a Single Chain Transfer
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
CHNE=1 CHNE=1
DTC vector table
DTC index table
CHNE=1 SQEND=1
Transfer information
INDX = 1
Transfer information
CHNE = 1
INDX = 0
SQEND = 0
CHNE = 1
INDX = 0
SQEND = 0
CHNE = 1
INDX = 0
SQEND = 0
CHNE = 0
INDX = 0
SQEND = 1
16. Data Transfer Controller (DTCb)
Data transfer
Data
Sequence number = q
Data transfer
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