r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 339
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r4f2456
Manufacturer Part Number
r4f2456
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2456.pdf
(1376 pages)
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- Current page: 339 of 1376
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This LSI has a built-in DMA controller (DMAC) which can carry out data transfer on up to 4
channels.
7.1
•
•
•
•
•
Short address mode
Maximum of 4 channels can be used
Dual address mode or single address mode can be selected
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 addresses as specified as 24 bits
Choice of normal mode or block transfer mode
mode)
Six compare match/input capture interrupts of 16-bit timer-pulse unit (TPU0 to TPU5)
Transmission complete interrupt and reception complete interrupt of serial communication
Conversion end interrupt of A/D converter (A/D_0)
EP1FIFO full interrupt and EP2FIFO empty interrupt of USB
External request
Auto-request
Selectable as 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
specified as 24 bits and the other as 16 bits
24 bits
address mode
interface (SCI_0, SCI_1)
Features
Section 7 DMA Controller (DMAC)
Rev. 1.00 Sep. 19, 2008 Page 309 of 1342
Section 7 DMA Controller (DMAC)
REJ09B0467-0100
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