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HD6432351 bảng dữ liệu(PDF) 240 Page - Renesas Technology Corp

tên linh kiện HD6432351
Giải thích chi tiết về linh kiện  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
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HD6432351 bảng dữ liệu(HTML) 240 Page - Renesas Technology Corp

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Section 7 DMA Controller (DMAC)
Rev. 3.00 Sep 15, 2006 page 206 of 988
REJ09B0330-0300
Bit 5—Repeat Enable (RPE): Used in combination with the DTIE bit in DMABCR to select the
mode (sequential, idle, or repeat) in which transfer is to be performed.
Bit 5
RPE
DMABCR
DTIE
Description
0
0
Transfer in sequential mode (no transfer end interrupt)
(Initial value)
1
Transfer in sequential mode (with transfer end interrupt)
1
0
Transfer in repeat mode (no transfer end interrupt)
1
Transfer in idle mode (with transfer end interrupt)
For details of operation in sequential, idle, and repeat mode, see section 7.5.2, Sequential Mode,
section 7.5.3, Idle Mode, and section 7.5.4, Repeat Mode.
Bit 4—Data Transfer Direction (DTDIR): Used in combination with the SAE bit in DMABCR
to specify the data transfer direction (source or destination). The function of this bit is therefore
different in dual address mode and single address mode.
DMABCR
SAE
Bit 4
DTDIR
Description
0
0
Transfer with MAR as source address and IOAR as destination
address
(Initial value)
1
Transfer with IOAR as source address and MAR as destination address
1
0
Transfer with MAR as source address and
DACK pin as write strobe
1
Transfer with
DACK pin as read strobe and MAR as destination address



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