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HD6432351 Datasheet(PDF) 345 Page - Renesas Technology Corp

Part # HD6432351
Description  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432351 Datasheet(HTML) 345 Page - Renesas Technology Corp

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Section 8 Data Transfer Controller (DTC)
Rev. 3.00 Sep 15, 2006 page 311 of 988
REJ09B0330-0300
8.3.7
Block Transfer Mode
In block transfer mode, one operation transfers one block of data.
The block size is 1 to 256. When the transfer of one block ends, the initial state of the block size
counter and the address register specified as the block area is restored. The other address register
is then incremented, decremented, or left fixed.
From 1 to 65,536 transfers can be specified. Once the specified number of transfers have ended, a
CPU interrupt is requested.
Table 8.7 lists the register information in block transfer mode and figure 8.8 shows memory
mapping in block transfer mode.
Table 8.7
Register Information in Block Transfer Mode
Name
Abbreviation
Function
DTC source address register
SAR
Designates transfer source address
DTC destination address register
DAR
Designates destination address
DTC transfer count register AH
CRAH
Holds block size
DTC transfer count register AL
CRAL
Designates block size count
DTC transfer count register B
CRB
Transfer count



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