HD64F2638F20J Datasheet, PDF (248/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 8 Data Transfer Controller (DTC)
H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Bit 7—DTC Software Activation Enable (SWDTE): Enables or disables DTC activation by
software.
Bit 7
SWDTE
0
1
Description
DTC software activation is disabled
[Clearing conditions]
(Initial value)
• 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
DTC software activation is enabled
[Holding conditions]
• When the DISEL bit is 1 and data transfer has ended
• When the specified number of transfers have ended
• During data transfer due to software activation
Bits 6 to 0—DTC Software Activation Vectors 6 to 0 (DTVEC6 to DTVEC0): These bits
specify a vector number for DTC software activation.
The vector address is expressed as H'0400 + ((vector number) << 1). <<1 indicates a one-bit left-
shift. For example, when DTVEC6 to DTVEC0 = H'10, the vector address is H'0420.
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REJ09B0103-0800 Rev. 8.00
May 28, 2010