r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 299

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 6 Bus Controller (BSC)
When DDS = 0 or EDDS = 0: When continuous synchronous DRAM space is accessed in
DMAC or EXDMAC single address transfer mode, full access (normal access) is always
performed. With the synchronous DRAM interface, the DACK or EDACK output goes low from
the T
state.
r
In modes other than DMAC or EXDMAC single address transfer mode, burst access can be used
when accessing continuous synchronous DRAM space.
Figure 6.73 shows the DACK or EDACK output timing for connecting the synchronous DRAM
interface when DDS = 0 or EDDS = 0.
Rev. 1.00 Sep. 19, 2008 Page 271 of 1270
REJ09B0466-0100