HD6432351 datasheet(336/1025 Pages) RENESAS

Teilenummer	HD6432351

Bauteilbeschribung	16-Bit Single-Chip Microcomputer

PDF	1025 Pages

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Hersteller	RENESAS [Renesas Technology Corp]

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Section 8 Data Transfer Controller (DTC)

Rev. 3.00 Sep 15, 2006 page 302 of 988

REJ09B0330-0300

8.3

Operation

8.3.1

Overview

When activated, the DTC reads register information that is already stored in memory and transfers

data on the basis of that register information. After the data transfer, it writes updated register

information back to memory. Pre-storage of register information in memory makes it possible to

transfer data over any required number of channels. Setting the CHNE bit to 1 makes it possible to

perform a number of transfers with a single activation.

Figure 8.2 shows a flowchart of DTC operation.

Start

Read DTC vector

Next transfer

Read register information

Data transfer

Write register information

Clear an activation flag

CHNE = 1

End

Yes

Transfer Counter = 0

or DISEL = 1

Clear DTCER

Interrupt exception

handling

Figure 8.2 Flowchart of DTC Operation

HD6432351 Datenblatt(PDF) 336 Page - Renesas Technology Corp