HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 231

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

7.1
The chip has a built-in DMA controller (DMAC) which can carry out data transfer on up to 4
channels.
7.1.1
The features of the DMAC are listed below.
• Choice of short address mode or full address mode
• 16-Mbyte address space can be specified directly
• Byte or word can be set as the transfer unit
• Activation sources: internal interrupt, external request, auto-request (depending on transfer
• Module stop mode can be set
Short address mode
⎯ Maximum of 4 channels can be used
⎯ Choice of dual address mode or single address mode
⎯ In dual address mode, one of the two addresses, transfer source and transfer destination, is
⎯ In single address mode, transfer source or transfer destination address only is specified as
⎯ In single address mode, transfer can be performed in one bus cycle
⎯ Choice of sequential mode, idle mode, or repeat mode for dual address mode and single
Full address mode
⎯ Maximum of 2 channels can be used
⎯ Transfer source and transfer destination address specified as 24 bits
⎯ Choice of normal mode or block transfer mode
mode)
⎯ Six 16-bit timer-pulse unit (TPU) compare match/input capture interrupts
⎯ Serial communication interface (SCI0, SCI1) transmit-data-empty interrupt, receive-data-
⎯ A/D converter conversion end interrupt
⎯ External request
⎯ Auto-request
specified as 24 bits and the other as 16 bits
24 bits
address mode
full interrupt
Overview
Features
Section 7 DMA Controller
Rev.4.00 Sep. 07, 2007 Page 201 of 1210
REJ09B0245-0400