Datasheet

Table Of Contents
Section 8 Data Transfer Controller (DTC)
REJ09B0140-0900 Rev. 9.00 Page 211 of 846
Sep 16, 2010
H8S/2215 Group
8.2.8 DTC Vector Register (DTVECR)
DTVECR enables or disables DTC activation by software, and sets a vector number for the
software activation interrupt.
Bit Bit Name Initial Value R/W Description
7 SWDTE 0 R/W* DTC Software Activation Enable
This bit specifies whether DTC software startup is enabled
or prohibited.
0: Prohibits DTC software startup.
1: Enables DTC software startup.
[Clearing conditions]
When the DISEL bit is 0 and the specified number of
transfers have not ended
When 0 s written to the DISEL bit after a software-
activated data transfer end interrupt (SWDTEND)
request has been sent to the CPU
[Holding conditions]
The DISEL bit is set to 1 and data transfer has
finished.
The specified number of data transfers have
completed.
A software-triggered data transfer is in progress.
6
5
4
3
2
1
0
DTVEC6
DTVEC5
DTVEC4
DTVEC3
DTVEC2
DTVEC1
DTVEC0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
DTC Software Activation Vector 6 to 0
These bits specify a vector number for DTC software
activation.
The vector address is expressed as H'0400 + (vector
number × 2). For example, when DTVEC6 to
DTVEC0 = H'10, the vector address is H'0420. When the
bit SWDTE is 0, these bits can be written.
Note: * Only 1 may be written to the SWDTE bit.