M32C80 Datasheet, PDF (138/352 Pages) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

M32C/80 Group
12. DMAC
When DMA transfer request signals by external source are applied to INT0 and
INT1 simultaneously and a DMA transfer with minimum cycle occurs
CPU Clock
DMA0
DMA1
CPU
INT0
DRQ Bit in the
DMA0 Register
INT1
DRQ Bit in the
DMA1 Register
Bus
privilege
acquired
Figure 12.7 DMA Transfer by External Source
Rev. 1.00 Nov. 01, 2005 Page 119 of 330
REJ09B0271-0100