h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 208

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 8 Data Transfer Controller (DTC)
8.1.2
Figure 8.1 shows a block diagram of the DTC.
The DTC’s register information is stored in the on-chip RAM * . 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.
Note: * When the DTC is used, the RAME bit in SYSCR must be set to 1.
Rev. 5.00 Sep 22, 2005 page 182 of 1136
REJ09B0257-0500
Interrupt
request
Block Diagram
Legend:
MRA, MRB
CRA, CRB
SAR
DAR
DTCERA to DTCERG, I
DTVECR
Interrupt controller
CPU interrupt
request
Figure 8.1 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 G, I
: DTC vector register
DTC
Internal address bus
Internal data bus
On-chip
RAM