HD6417616 RENESAS [Renesas Technology Corp], HD6417616 Datasheet - Page 529

• Manufacturer Part Number: HD6417616
• Description: 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7600 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

When external memory is set as bank active synchronous DRAM, during a write the acknowledge
signal is output across the wait and column address when the row address is the same as the
previous address output (figure 11.26). When the row address is different from the previous
address, the acknowledge signal is output across the precharge, row address, wait and column
address (figure 11.27).
(Active high)
Figure 11.26 DACKn Output in Synchronous DRAM Write
Figure 11.27 DACKn Output in Synchronous DRAM Write
Address
DACKn
Clock
bus
(Bank Active, Different Row Address, AM = 1)
(Active high)
(Bank Active, Same Row Address, AM = 1)
Address
DACKn
Clock
bus
Section 11 Direct Memory Access Controller (DMAC)
Precharge
(basic timing)
DMAC write
(basic timing)
DMAC write
address
Column
Rev. 2.00 Mar 09, 2006 page 503 of 906
address
Row
address
Column
REJ09B0292-0200