R01UH0822EJ0100 Rev.1.00
Page 278 of 1041
Jul 31, 2019
RX13T Group
16. Data Transfer Controller (DTCb)
DTC Index
When the CPUSEL bit in the DTC index that the obtained sequence number indicates is 1, an interrupt request to the
CPU is generated. At this time, the ICU.DTCERn.DTCE bit becomes 0. From this point, the interrupt request signal from
the request source that is specified in the DTCSQE register is sent to the CPU, but not DTC. After completion of CPU
interrupt processing, set the ICU.DTCERn.DTCE bit to 1 to enable DTC transfer request for starting the next sequence
transfer.
Address(es): p × 4
b31
b30
b29
b28
b27
b26
b25
b24
b23
b22
b21
b20
b19
b18
b17
b16
DTCIADDR[31:16]
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
DTCIADDR[15:2]
—
CPUSE
L
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b0
Sequence Transfer/CPU Interrupt
Select
0: Continues the sequence transfer (starts the
sequence)
1: Ends the sequence transfer and outputs an interrupt
request to the CPU
—
b1
Reserved
Set this bit to 0.
—
b31 to b2
DTCIADDR[31:2]
Transfer Information Table Address
Set the upper 30 bits of the start address of the transfer
information table to these bits. Writing to the upper 4
bits (b31 to b28) is ignored and the values in b31 to b28
become the same value as b27.
—