h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 257
h8s-2635
Manufacturer Part Number
h8s-2635
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2635.pdf
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Bit n—DTC Activation Enable (DTCEn)
A DTCE bit can be set for each interrupt source that can activate the DTC. The correspondence
between interrupt sources and DTCE bits is shown in table 8-4, together with the vector number
generated for each interrupt controller.
For DTCE bit setting, use bit manipulation instructions such as BSET and BCLR for reading and
writing. If all interrupts are masked, multiple activation sources can be set at one time by writing
data after executing a dummy read on the relevant register.
8.2.8
DTVECR is an 8-bit readable/writable register that enables or disables DTC activation by
software, and sets a vector number for the software activation interrupt.
DTVECR is initialized to H'00 by a reset and in hardware standby mode.
Bit n
DTCEn
0
1
DTC Vector Register (DTVECR)
Description
DTC activation by this interrupt is disabled
[Clearing conditions]
DTC activation by this interrupt is enabled
[Holding condition]
When the DISEL bit is 1 and the data transfer has ended
When the specified number of transfers have ended
When the DISEL bit is 0 and the specified number of transfers have not ended
*
*
*
*
Rev. 6.00 Feb 22, 2005 page 197 of 1484
Section 8 Data Transfer Controller (DTC)
*
*
REJ09B0103-0600
*
(Initial value)
(n = 7 to 0)
*
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