HD6432670 Hitachi, HD6432670 Datasheet - Page 439

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

This LSI includes a data transfer controller (DTC). The DTC can be activated by an interrupt or
software, to transfer data.
Figure 9.1 shows a block diagram of the 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.
9.1
DTCH804A_010020020400
Transfer possible over any number of channels
Three transfer modes
Normal, repeat, and block transfer modes available
One activation source can trigger a number of data transfers (chain transfer)
Direct specification of 16-Mbyte address space 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
Module stop mode can be set
Features
Section 9 Data Transfer Controller (DTC)
Rev. 2.0, 04/02, page 393 of 906