Example Of Sequence Transfer - Renesas RX100 Series User Manual

RX13T Group
16.4.12

Example of Sequence Transfer

Figure 16.18 shows a typical examples of a sequence transfer and Figure 16.19 to Figure 16.23 show configurations
of the transfer information for the examples of the transfers in the figure.
In these examples, the interrupt source of vector number n is set as the source of the sequence transfer
(DTCSQE.VECN[7:0] = n).
Once the DTC transfer request due to the interrupt source of vector number n (hereinafter referred to as "transfer request
n") is input, the DTC refers to the DTC vector table and reads the corresponding transfer information. The lower 8 bits
that have been transferred based on the transfer information become a sequence number, selecting one sequence among
possible 256 sequences.
(1) Execution of a Single Transfer
Transfer request n
INDX=1
(2) Execution of a Single Transfer (Chain Transfer)
Transfer request n
INDX=1
(3) Division of a Sequence
Transfer request n
INDX=1
(4) Start of a New Sequence on Completion of a Sequence
Transfer request n
INDX=1
(5) Generation of an Interrupt Request to the CPU
Transfer request n
INDX=1
Figure 16.18 Examples of Sequence Transfers
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
Select sequence
SQEND=1
Select sequence
CHNE=1 CHNE=1
Transfer request n
Select sequence
CHNE=0
Suspend
Select sequence
CHNE=1 CHNE=1
Select sequence
Interrupt requent
CHNE=1 SQEND=1
Transfer request n
CHNE=1 CHNE=0
Suspend
Select sequence
SQEND=1
CHNE=1
INDX=1
16. Data Transfer Controller (DTCb)
Defined sequence
Data transfer
CHNE=1 SQEND=1
CHNE=1 SQEND=1
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