p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 165

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 7 Data Transfer Controller (DTC)
7.2
Register Descriptions
The DTC has the following registers.
• DTC mode register A (MRA)
• DTC mode register B (MRB)
• DTC source address register (SAR)
• DTC destination address register (DAR)
• DTC transfer count register A (CRA)
• DTC transfer count register B (CRB)
These six registers cannot be directly accessed from the CPU. When a DTC activation interrupt
source occurs, the DTC reads a set of register information that is stored in on-chip RAM to the
corresponding DTC registers and transfers data. After the data transfer, it writes a set of updated
register information back to on-chip RAM.
• DTC enable register (DTCER)
• DTC vector register (DTVECR)
Rev. 1.00 Sep. 21, 2006 Page 127 of 658
REJ09B0310-0100