h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 205

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

7.2.8
DTVECR enables or disables DTC activation by software, and sets a vector number for the
software activation interrupt.
DTVECR is initialized to H'00 at a reset and in hardware standby mode.
Bit
7
6
5
4
3
2
1
0
Bit Name
SWDTE
DTVEC6
DTVEC5
DTVEC4
DTVEC3
DTVEC2
DTVEC1
DTVEC0
DTC Vector Register (DTVECR)
Initial Value
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Setting this bit to 1 activates DTC. Only 1 can always be
written to this bit. 0 can be written to after reading 1
from this bit.
[Clearing conditions]
[Holding conditions]
DTC Software Activation Vectors 6 to 0
These bits specify a vector number for DTC software
activation.
The vector address is expressed as H'0400 + (vector
number
H'10, the vector address is H'0420. When the SWDTE
bit is 0, these bits can be written to.
Description
DTC Software Activation Enable
When the DISEL bit is 0 and the specified number of
transfers have not ended.
When 0 is written to the DISEL bit after a software-
activated data transfer end interrupt (SWDTEND)
request has been sent to the CPU.
When the DISEL bit is 1 and data transfer has
ended
When the specified number of transfers have ended.
During data transfer activated by software
2). For example, when DTVEC6 to DTVEC0 =
Section 7 Data Transfer Controller (DTC)
Rev. 3.00 Mar 21, 2006 page 151 of 788
REJ09B0300-0300