Figure 7.25 Example Of Procedure For Clearing Full Address Mode - Hitachi H8S/2215 Series Hardware Manual

Hitachi single-chip microcomputer
Table of Contents

Advertisement

Clearing full
address mode
Stop the channel
Initialize DMACR
Clear FAE bit to 0
Initialization;
operation halted

Figure 7.25 Example of Procedure for Clearing Full Address Mode

Rev. 3.0, 10/02, page 190 of 686
[1] Clear both the DTE bit and the DTME bit in
DMABCRL to 0; or wait until the transfer ends
and the DTE bit is cleared to 0, then clear the
DTME bit to 0.
Also clear the corresponding DTIE bit to 0 at the
same time.
[1]
[2] Clear all bits in DMACRA and DMACRB to 0.
[3] Clear the FAE bit in DMABCRH to 0.
[2]
[3]

Advertisement

Table of Contents
loading

Table of Contents