r5s72060w200fpv Renesas Electronics Corporation., r5s72060w200fpv Datasheet - Page 428

• Manufacturer Part Number: r5s72060w200fpv
• Description: 32-bit Risc Microcomputer Superhtm Risc Engine Family / Sh7200 Series
• Manufacturer: Renesas Electronics Corporation.

Section 9 Direct Memory Access Controller (DMAC)
Rev. 2.00 Dec. 09, 2005 Page 404 of 1152
REJ09B0191-0200
Figure 9.16 Example of DREQ Input Detection in Burst Mode Level Detection
Figure 9.15 Example of DREQ Input Detection in Burst Mode Edge Detection
CKIO
Bus cycle
DREQ
(Overrun 1 at
high level)
DACK
(Active-high)
CKIO
Bus cycle
DREQ
(Overrun 0 at
high level)
DACK
(Active-high)
CKIO
Bus cycle
DREQ
(Rising)
DACK
(Active-high)
1st acceptance
1st acceptance
Burst acceptance
CPU
CPU
Non sensitive period
CPU
Non sensitive period
CPU
Non sensitive period
CPU
CPU
2nd acceptance
DMAC
DMAC
Acceptance
start
DMAC
2nd
acceptance
Acceptance
start
3rd
acceptance
DMAC
DMAC
Acceptance
start