R01UH0822EJ0100 Rev.1.00
Page 250 of 1041
Jul 31, 2019
RX13T Group
16. Data Transfer Controller (DTCb)
Note:
Do not set the values other than listed above.
DTS Bit (DTC Transfer Mode Select)
The DTS bit specifies the side (transfer source or destination) to be a repeat area or block area in repeat transfer mode or
block transfer mode.
CHNS Bit (DTC Chain Transfer Select)
The CHNS bit selects the chain transfer condition.
When the CHNE bit is 0, setting of the CHNS bit is ignored. For details on the conditions to select the chain transfer,
refer to
Table 16.4, Chain Transfer Conditions
.
When the next transfer is chain transfer, completion of the specified number of transfers is not determined, the interrupt
status flag for the request source is not cleared, and an interrupt request to the CPU is not generated.
CHNE Bit (DTC Chain Transfer Enable)
The CHNE bit enables or disables chain transfer.
The chain transfer condition is selected by the CHNS bit.
For details of chain transfer, refer to
section 16.4.6, Chain Transfer
.
for the setting value to be used in the sequence transfer.
Table 16.2
Values of Bits CHNE, SQEND, and INDX in the Sequence Transfer and DTC Operation
Operation
Usage
0
0
1
Start sequence transfer
Use this setting for the transfer information that is first
read in response to a transfer request from the source
specified in the DTCSQE register.
1
0
0
Continue sequence transfer
Use this setting for the first or intermediate transfer
information in a sequence.
0
0
0
Suspend sequence transfer
Use this setting for the first or intermediate transfer
information in a sequence.
0
1
0
End sequence transfer
Use this setting with the last transfer information in a
sequence.
0
1
1
End current sequence transfer
and start new sequence transfer
Use this setting with the last transfer information in a
sequence.