h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 954

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Appendix B Internal I/O Registers
DTCER—DTC Enable Register
DTVECR—DTC Vector Register
Rev. 4.00 Jun 06, 2006 page 900 of 1004
REJ09B0301-0400
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Note: *
A value of 1 can always be written to the SWDTE bit, but 0 can only be written
after 1 is read.
SWDTE
DTCE7
R/(W) *
R/W
DTC activation enable
DTC software activation enable
7
0
7
0
0
1
0
1
DTC activation by interrupt is disabled
[Clearing conditions]
• When data transfer ends with the DISEL bit set to 1
• When the specified number of transfers end
DTC activation by interrupt is enabled
[Holding condition]
When the DISEL bit is 0 and the specified number of transfers
have not ended
DTC software activation is disabled
[Clearing condition]
When the DISEL bit is 0 and the specified number of transfers have
not ended
DTC software activation is enabled
[Holding conditions]
• When data transfer ends with the DISEL bit set to 1
• When the specified number of transfers end
• During software-activated deta transfer
DTVEC6
DTCE6
R/W
R/W
6
0
6
0
DTVEC5
DTCE5
R/W
R/W
5
0
5
0
DTVEC4
DTCE4
Sets vector number for DTC software activation
R/W
R/W
4
0
4
0
H'FEF3
H'FEEE to H'FEF2
DTVEC3
DTCE3
R/W
R/W
3
0
3
0
DTVEC2
DTCE2
R/W
R/W
2
0
2
0
DTVEC1
DTCE1
R/W
R/W
1
0
1
0
DTVEC0
DTCE0
R/W
R/W
0
0
0
0
DTC
DTC