p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 164

• 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)
7.1
• Transfer is possible over any number of channels
• Three transfer modes
• One activation source can trigger a number of data transfers (chain transfer)
• Direct specification of 16 Mbytes address space is possible
• Activation by software is possible
• Transfer can be set in byte or word units
• A CPU interrupt can be requested for the interrupt that activated the DTC
Rev. 1.00 Sep. 21, 2006 Page 126 of 658
REJ09B0310-0100
Normal, repeat, and block transfer modes are available
Interrupt
request
[Legend]
MRA, MRB:
CRA, CRB:
SAR:
DAR:
DTCERA to DTCERE:
DTVECR:
Features
Interrupt controller
CPU interrupt
request
DTC mode register A, B
DTC transfer count register A, B
DTC source address register
DTC destination address register
DTC enable registers A to E
DTC vector register
Figure 7.1 Block Diagram of DTC
DTC
Internal address bus
Internal data bus
On-chip RAM