HD64F2149 Datasheet, PDF (914/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

DTCER—DTC Enable Register
H'FEEE to H'FEF2
DTC
Bit
Initial value
Read/Write
7
DTCE7
0
R/W
6
DTCE6
0
R/W
5
DTCE5
0
R/W
4
DTCE4
0
R/W
3
DTCE3
0
R/W
2
DTCE2
0
R/W
1
DTCE1
0
R/W
0
DTCE0
0
R/W
DTC activation enable
0 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
1 DTC activation by interrupt is enabled
[Holding condition]
When the DISEL bit is 0 and the specified number of transfers
have not ended
DTVECR—DTC Vector Register
H'FEF3
DTC
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
SWDTE DTVEC6 DTVEC5 DTVEC4 DTVEC3 DTVEC2 DTVEC1 DTVEC0
0
0
0
0
0
0
0
0
R/(W)* R/W
R/W
R/W
R/W
R/W
R/W
R/W
Sets vector number for DTC software activation
DTC software activation enable
0 DTC software activation is disabled
[Clearing condition]
When the DISEL bit is 0 and the specified number of transfers have
not ended
1 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
Note: * A value of 1 can always be written to the SWDTE bit, but 0 can only be written
after 1 is read.
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