r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 493

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

9.2.2
MRB selects the DTC operating mode.
9.2.3
SAR is a 24-bit register that designates the source address of data to be transferred by the DTC.
For word-size transfer, specify an even source address.
9.2.4
DAR is a 24-bit register that designates the destination address of data to be transferred by the
DTC. For word-size transfer, specify an even destination address.
Bit
7
6
5
4 to 0
Bit Name
CHNE
DISEL
CHNS
—
DTC Mode Register B (MRB)
DTC Source Address Register (SAR)
DTC Destination Address Register (DAR)
Initial Value
Undefined
Undefined
Undefined
Undefined
R/W
—
—
—
—
Description
DTC Chain Transfer Enable
When this bit is set to 1, a chain transfer will be
performed. For details, refer to section 9.5.4,
Chain Transfer.
In data transfer with CHNE set to 1, determination
of the end of the specified number of transfers,
clearing of the activation source flag, and clearing
of DTCER is not performed.
DTC Interrupt Select
When this bit is set to 1, a CPU interrupt request is
generated every time after a data transfer ends.
When this bit is set to 0, a CPU interrupt request is
generated at the time when the specified number
of data transfer ends.
DTC Chain Transfer Select
Specifies the chain transfer condition.
0: Chain transfer every time
1: Chain transfer only when transfer counter = 0
Reserved
These bits have no effect on DTC operation, and
should always be written with 0.
Rev. 1.00 Sep. 19, 2008 Page 465 of 1270
Section 9 Data Transfer Controller (DTC)
REJ09B0466-0100