SH7065 Datasheet, PDF (367/941 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Section 9 Direct Memory Access Controller (DMAC)
CKE
DREQ
FIFO
DRAK
BUS
DACK
CPU
DMAC
read
DMAC
write
CPU
DMAC
read
DMAC
write
Notes: 1. CKE:CKM = 1:1
2. Cycle steal mode/dual address transfer
3. One transfer is performed for one edge.
4. DRAK and DACK are active-low.
Figure 9.12 Operation Example:
CKE = CKM, Edge Detection, One Transfer for One Edge
Rev. 5.00 Sep 11, 2006 page 345 of 916
REJ09B0332-0500