HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 326

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

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 DTC register
information.
Note: * When the DTC is used, the RAME bit in SYSCR must be set to 1.
Rev.4.00 Sep. 07, 2007 Page 296 of 1210
REJ09B0245-0400
Interrupt
request
Block Diagram
Legend:
MRA, MRB:
CRA, CRB:
SAR:
DAR:
DTCERA to DTCERF:
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 F
DTC vector register
DTC
Internal address bus
Internal data bus
On-chip
RAM