h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 203

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

7.2.2
MRB selects the DTC operating mode.
7.2.3
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.
7.2.4
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
to
0
Bit Name
CHNE
DISEL
—
DTC Mode Register B (MRB)
DTC Source Address Register (SAR)
DTC Destination Address Register (DAR)
Initial Value
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 7.5.4, Chain
Transfer.
In data transfer with CHNE set to 1, determination of
the end of the specified number of data transfers,
clearing of the interrupt source flag, and clearing of
DTCER are not performed.
DTC Interrupt Select
When this bit is set to 1, a CPU interrupt request is
generated every time data transfer ends (the DTC
clears the interrupt source flag for the activation
source). When this bit is cleared to 0, a CPU interrupt
request is generated only when the specified number of
data transfer ends (the DTC does not clear the interrupt
source flag for the activation source).
Reserved
These bits have no effect on DTC operation. Only 0
should be written to these bits.
Section 7 Data Transfer Controller (DTC)
Rev. 3.00 Mar 21, 2006 page 149 of 788
REJ09B0300-0300