HD6432351 datasheet(235/1025 Pages) RENESAS

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Section 7 DMA Controller (DMAC)

Rev. 3.00 Sep 15, 2006 page 201 of 988

REJ09B0330-0300

7.2

Short address mode transfer can be performed for channels A and B independently.

Short address mode transfer is specified for each channel by clearing the FAE bit in DMABCR to

0, as shown in table 7.4. Short address mode or full address mode can be selected for channels 1

and 0 independently by means of bits FAE1 and FAE0.

Table 7.4

Short Address Mode and Full Address Mode (For 1 Channel: Example of

Channel 0)

FAE0

Description

Short address mode specified (channels A and B operate independently)

MAR0A

Specifies transfer source/transfer destination address

Specifies transfer destination/transfer source address

Specifies number of transfers

Specifies transfer size, mode, activation source, etc.

Specifies transfer source/transfer destination address

Specifies transfer destination/transfer source address

Specifies number of transfers

Specifies transfer size, mode, activation source, etc.

IOAR0A

ETCR0A

DMACR0A

MAR0B

IOAR0B

ETCR0B

DMACR0B

Full address mode specified (channels A and B operate in combination)

MAR0A

Specifies transfer source address

Specifies transfer destination address

Not used

Specifies number of transfers

Specifies number of transfers (used in block transfer

mode only)

Specifies transfer size, mode, activation source, etc.

IOAR0A

ETCR0A

DMACR0A

MAR0B

IOAR0B

ETCR0B

DMACR0B

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