HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 513

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Figure 10.21
(active-high)
(active-high)
(DACK is Divided into Four due to Idle Cycle Insertion between Access Cycles and So
(overrun 0,
(overrun 1,
high level)
high level)
Bus cycle
Bus cycle
DREQ
DREQ
DACK
DACK
CKIO
CKIO
First acceptance
CPU
First acceptance
CPU
Timing of DREQ Input Detection by Level Detection in Cycle Stealing Mode
Dead zone
Dead zone
DREQ Sampling is Accepted One Extra Time)
Second
acceptance
Dead zone
Acceptance
started
Second
acceptance
Acceptance started
Dead zone
DMAC write or read
Third acceptance (possible)
DMAC write or read
Third acceptance (possible)
Section 10
Rev. 3.00 Jan. 18, 2008 Page 451 of 1458
Direct Memory Access Controller (DMAC)
REJ09B0033-0300