Renesas H8S Series Hardware Manual page 234

Figure 7-10 shows an example of the setting procedure for single address mode (when sequential mode is specified).
Single address
Set DMABCRH
Set transfer source and
transfer destination
Set number of transfers
Read DMABCRL
Set DMABCRL
Single address mode
Figure 7-10 Example of Single Address Mode Setting Procedure (When Sequential Mode Is Specified)
Rev.6.00 Oct.28.2004 page 206 of 1016
REJ09B0138-0600H
mode setting
[1]
[2]
addresses
[3]
[4]
Set DMACR
[5]
[6]
[1] Set each bit in DMABCRH.
• Clear the FAE bit to 0 to select short address
mode.
• Set the SAE bit to 1 to select single address
mode.
• Specify enabling or disabling of internal
interrupt clearing with the DTA bit.
[2] Set the transfer source address/transfer
destination address in MAR.
[3] Set the number of transfers in ETCR.
[4] Set each bit in DMACR.
• Set the transfer data size with the DTSZ bit.
• Specify whether MAR is to be incremented or
decremented with the DTID bit.
• Clear the RPE bit to 0 to select sequential
mode.
• Specify the transfer direction with the DTDIR
bit.
• Select the activation source with bits DTF3 to
DTF0.
[5] Read the DTE bit in DMABCRL as 0.
[6] Set each bit in DMABCRL.
• Specify enabling or disabling of transfer end
interrupts with the DTIE bit.
• Set the DTE bit to 1 to enable transfer.