Intel 386 - Manual (Page 373)

Intel386™ EX EMBEDDED MICROPROCESSOR USER’S MANUAL
12-38
12.3.8 Mode 1 Register (DMAMOD1)
Use DMAMOD1 to select a particular channel’s data-transfer mode and transfer direction and to
enable the channel’s auto-initialize buffer-transfer mode. You can configure the DMA to modify
the target address during a buffer transfer by clearing DMAMOD2.2, then use DMAMOD1.5 to
specify how the channel modifies the address.