Dtc Status Register (Dtcsts) - Renesas RX100 Series User Manual

RX13T Group
16.2.12

DTC Status Register (DTCSTS)

Address(es): DTC.DTCSTS 0008 240Eh
b15 b14
ACT —
Value after reset: 0 0
Bit Symbol
b7 to b0 VECN[7:0]
b14 to b8 —
b15 ACT
VECN[7:0] Flags (DTC Active Vector Number Monitoring Flag)
While data transfer is in progress, these bits indicate the vector number corresponding to the request source for the
transfer.
When the DTCSTS register is read, the value of the VECN[7:0] flags is valid if the value of the ACT flag was 1 (data
transfer is in progress) and invalid if the value of the ACT flag was 0 (data transfer is not in progress).
For the correspondence between the DTC request sources and the vector addresses, refer to section 14.3.1, Interrupt
Vector Table in section 14, Interrupt Controller (ICUb) .
ACT Flag (DTC Active Flag)
This flag indicates the state of data transfer operation.
[Setting condition]
 When the data transfer is started by a transfer request.
 When the sequence transfer is resumed.
[Clearing condition]
 When the data transfer is completed in response to a transfer request.
 When the sequence transfer is suspended.
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
b13 b12 b11 b10
— — — —
0 0 0 0
Bit Name
DTC Active Vector Number
Monitoring Flag
Reserved
DTC Active Flag
b9 b8 b7 b6
— —
0 0 0 0
Description
These bits indicate the vector number for the request source when
data transfer is in progress.
The value is only valid if data transfer is in progress (the value of
the ACT flag is 1).
These bits are read as 0. Writing to these bits has no effect.
0: Data transfer is not in progress.
1: Data transfer is in progress.
16. Data Transfer Controller (DTCb)
b5 b4 b3 b2
VECN[7:0]
0 0 0 0
Page 257 of 1041
b1 b0
0 0
R/W
R
R
R