HD6412350 Hitachi, HD6412350 Datasheet - Page 262

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

Figure 7-10 shows an example of the setting procedure for single address mode (when sequential
mode is specified).
242
Figure 7-10 Example of Single Address Mode Setting Procedure (When Sequential Mode is
Set transfer source and
Set number of transfers
Single address mode
transfer destination
Read DMABCRL
Set DMABCRH
Set DMABCRL
Single address
mode setting
Set DMACR
addresses
[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.
Specified)
• 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.