HD64570 Datasheet, PDF (105/469 Pages) Hitachi Semiconductor – Serial Communications Adaptor

Bit 6 (DMIA3: DMA Channel 3 Interrupt A):
DMIA3 = 0: DMAC channel 3 is not requesting a DMIA interrupt.
DMIA3 = 1: DMAC channel 3 is requesting a DMIA interrupt.
Bit 5 (DMIB2: DMA Channel 2 Interrupt B):
DMIB2 = 0: DMAC channel 2 is not requesting a DMIB interrupt.
DMIB2 = 1: DMAC channel 2 is requesting a DMIB interrupt.
Bit 4 (DMIA2: DMA Channel 2 Interrupt A):
DMIA2 = 0: DMAC channel 2 is not requesting a DMIA interrupt.
DMIA2 = 1: DMAC channel 2 is requesting a DMIA interrupt.
Bit 3 (DMIB1: DMA Channel 1 Interrupt B):
DMIB1 = 0: DMAC channel 1 is not requesting a DMIB interrupt.
DMIB1 = 1: DMAC channel 1 is requesting a DMIB interrupt.
Bit 2 (DMIA1: DMA Channel 1 Interrupt A):
DMIA1 = 0: DMAC channel 1 is not requesting a DMIA interrupt.
DMIA1 = 1: DMAC channel 1 is requesting a DMIA interrupt.
Bit 1 (DMIB0: DMA Channel 0 Interrupt B):
DMIB0 = 0: DMAC channel 0 is not requesting a DMIB interrupt.
DMIB0 = 1: DMAC channel 0 is requesting a DMIB interrupt.
Bit 0 (DMIA0: DMA Channel 0 Interrupt A):
DMIA0 = 0: DMAC channel 0 is not requesting a DMIA interrupt.
DMIA0 = 1: DMAC channel 0 is requesting a DMIA interrupt.
Rev. 0, 07/98, page 89 of 453