Datasheet

Table Of Contents
Section 8 Data Transfer Controller (DTC)
REJ09B0140-0900 Rev. 9.00 Page 205 of 846
Sep 16, 2010
H8S/2215 Group
Section 8 Data Transfer Controller (DTC)
This LSI includes a data transfer controller (DTC). The DTC can be activated by an interrupt or
software, to transfer data.
8.1 Features
Transfer possible over any number of channels
Transfer information is stored in memory
One activation source can trigger a number of data transfer (chain transfer)
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
Figure 8.1 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.
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