r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 185

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

8.2
DTC has the following registers. For details on the addresses of these registers and the states of
these registers in each processing state, see section 25, List of Registers.
These six registers MRA, MRB, SAR, DAR, CRA, and CRB cannot be directly accessed by the
CPU. The contents of these registers are stored in the data area as transfer information. When a
DTC activation request occurs, the DTC reads a start address of transfer information that is stored
in the data area according to the vector address, reads the transfer information, and transfers data.
After the data transfer, it writes a set of updated transfer information back to the data area.
On the other hand, DTCERA to DTCERE, DTCCR, and DTCVBR can be directly accessed by the
CPU.
Table 8.1
Register Name
DTC enable register A
DTC enable register B
DTC enable register C
DTC enable register D
DTC enable register E
DTC control register
DTC vector base register
Bus function extending register BSCEHR
Register Descriptions
Register Configuration
Abbrevia-
tion
DTCERA
DTCERB
DTCERC
DTCERD
DTCERE
DTCCR
DTCVBR
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
H'0000
H'0000
H'0000
H'0000
H'0000
H'00
H'00000000
H'0000
Rev. 1.00 Sep. 21, 2007 Page 159 of 1124
Section 8 Data Transfer Controller (DTC)
Address
H'FFFFCC80
H'FFFFCC82
H'FFFFCC84
H'FFFFCC86
H'FFFFCC88
H'FFFFCC90
H'FFFFCC94
H'FFFFE89A
REJ09B0402-0100
Access Size
8, 16
8, 16
8, 16
8, 16
8, 16
8
8, 16, 32
8, 16