HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 247
HD6412320
Manufacturer Part Number
HD6412320
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412320.pdf
(1302 pages)
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7.1
The chip has a built-in DMA controller * (DMAC) which can carry out data transfer on up to 4
channels.
Note: * The DMAC is not supported in the H8S/2321.
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
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) transmission data empty interrupt, reception
⎯ A/D converter conversion end interrupt
specified as 24 bits and the other as 16 bits
24 bits
address mode
data full interrupt
Overview
Features
(Not Supported in the H8S/2321)
Section 7 DMA Controller
Section 7 DMA Controller (Not Supported in the H8S/2321)
Rev.6.00 Sep. 27, 2007 Page 217 of 1268
REJ09B0220-0600
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