r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 490

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

Section 9 Data Transfer Controller (DTC)
The DTC's register information is stored in the on-chip RAM. When the DTC is used, the RAME
bit in SYSCR must be set to 1. A 32-bit bus connects the DTC to the on-chip RAM (1 Kbyte),
enabling 32-bit/1-state reading and writing of the DTC register information.
Rev. 1.00 Sep. 19, 2008 Page 462 of 1270
REJ09B0466-0100
Interrupt
request
Legend:
MRA, MRB
CRA, CRB
SAR
DAR
DTCERA to DTCERI
DTVECR
DTCCR
Interrupt controller
CPU interrupt
request
Figure 9.1 Block Diagram of DTC
: DTC mode registers A and B
: DTC transfer count registers A and B
: DTC source address register
: DTC destination address register
: DTC enable registers A to I
: DTC vector register
: DTC control register
DTC
Internal address bus
Internal data bus
On-chip RAM