D12320VF25IV Datasheet, PDF (356/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 8 Data Transfer Controller
Table 8.3 DTC Functions
Transfer Mode
Activation Source
• Normal mode
• IRQ
⎯ One transfer request transfers one byte
or one word
⎯ Memory addresses are incremented
or decremented by 1 or 2
⎯ Up to 65,536 transfers possible
• Repeat mode
⎯ One transfer request transfers one byte
or one word
• TPU TGI
• 8-bit timer CMI
• SCI TXI or RXI
• A/D converter
ADI
• DMAC DEND^*
• Software
⎯ Memory addresses are incremented
or decremented by 1 or 2
⎯ After the specified number of transfers
(1 to 256), the initial state resumes and
operation continues
• Block transfer mode
⎯ One transfer request transfers a block
of the specified size
⎯ Block size is from 1 to 256 bytes or words
⎯ Up to 65,536 transfers possible
⎯ A block area can be designated at either
the source or destination
Note: * The DMAC is not supported in the H8S/2321.
Address Registers
Transfer Transfer
Source Destination
24 bits 24 bits
Rev.6.00 Sep. 27, 2007 Page 324 of 1268
REJ09B0220-0600