H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 282

• Manufacturer Part Number: H8S-2350
• Description: 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 7 DMA Controller (DMAC)
Figure 7.10 shows an example of the setting procedure for single address mode (when sequential
mode is specified).
Rev. 3.00 Sep 15, 2006 page 248 of 988
REJ09B0330-0300
Set number of transfers
Set transfer source and
Single address mode
transfer destination
Read DMABCRL
Set DMABCRH
Set DMABCRL
Single address
mode setting
Set DMACR
addresses
Figure 7.10 Example of Single Address Mode Setting Procedure
(When Sequential Mode is Specified)
[1]
[2]
[3]
[4]
[5]
[6]
[1] Set each bit in DMABCRH.
[2] Set the transfer source address/transfer
[3] Set the number of transfers in ETCR.
[4] Set each bit in DMACR.
[5] Read the DTE bit in DMABCRL as 0.
[6] Set each bit in DMABCRL.
• Set the DTE bit to 1 to enable transfer.
• Clear the FAE bit to 0 to select short address
• Set the SAE bit to 1 to select single address
• Specify enabling or disabling of internal
destination address in MAR.
• Set the transfer data size with the DTSZ bit.
• Specify whether MAR is to be incremented or
• Clear the RPE bit to 0 to select sequential
• Specify the transfer direction with the DTDIR
• Select the activation source with bits DTF3 to
• Specify enabling or disabling of transfer end
mode.
mode.
interrupt clearing with the DTA bit.
decremented with the DTID bit.
mode.
bit.
DTF0.
interrupts with the DTIE bit.