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HD6432142 Datasheet(PDF) 244 Page - Renesas Technology Corp

Part # HD6432142
Description  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1177 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432142 Datasheet(HTML) 244 Page - Renesas Technology Corp

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Section 7 Data Transfer Controller (DTC)
Rev. 4.00 Sep 27, 2006 page 200 of 1130
REJ09B0327-0400
7.3.8
Chain Transfer
Setting the CHNE bit to 1 enables a number of data transfers to be performed consecutively in
response to a single transfer request. SAR, DAR, CRA, CRB, MRA, and MRB, which define data
transfers, can be set independently.
Figure 7.9 shows memory mapping for chain transfer.
Source
Source
Destination
Destination
DTC vector
address
Register information
start address
Register information
CHNE = 1
Register information
CHNE = 0
Figure 7.9 Memory Mapping in Chain Transfer
In the case of transfer with CHNE set to 1, an interrupt request to the CPU is not generated at the
end of the specified number of transfers or by setting of the DISEL bit to 1, and the interrupt
source flag for the activation source is not affected.



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