Section 9 Direct Memory Access Controller (DMAC)
Rev. 5.00 May 29, 2006 page 276 of 698
REJ09B0146-0500
(2) In the indirect address transfer mode, the address of memory in which data to be transferred
is stored is specified in the transfer source address register (SAR_3) in the DMAC. In this
mode, the address value specified in the transfer source address register in the DMAC is
read first. This value is temporarily stored in the DMAC. Next, the read value is output as
an address, and the value stored in that address is stored in the DMAC again. Then, the
value read afterwards is written to the address specified in the transfer destination address;
this completes one DMA transfer. 16-byte transfer is not possible.
Figure 9.9 shows one example. In this example, the transfer destination, the transfer source,
and the storage destination of the indirect address are external memories with a 16-bit
width in the indirect address mode, and transfer data is 16 or 8 bits. Figure 9.10 shows an
example of the transfer timing.
Summary of Contents for SH7706 Series
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Page 160: ...Section 5 Cache Rev 5 00 May 29 2006 page 112 of 698 REJ09B0146 0500 ...
Page 370: ...Section 11 Watchdog Timer WDT Rev 5 00 May 29 2006 page 322 of 698 REJ09B0146 0500 ...
Page 554: ...Section 17 Pin Function Controller PFC Rev 5 00 May 29 2006 page 506 of 698 REJ09B0146 0500 ...
Page 576: ...Section 18 I O Ports Rev 5 00 May 29 2006 page 528 of 698 REJ09B0146 0500 ...
Page 746: ...Index Rev 5 00 May 29 2006 page 698 of 698 REJ09B0146 0500 ...
Page 749: ...SH7706 Group Hardware Manual ...