r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 203

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Bit
4
3
Bit Name
EDDS
—
Initial Value
0
0
R/W
R/W
R/W
Description
EXDMAC Single Address Transfer Option
Selects whether full access is always performed or
burst access is enabled when EXDMAC single
address transfer is performed on the
DRAM/synchronous DRAM.
When the BE bit is cleared to 0 in DRAMCR,
disabling DRAM/synchronous DRAM burst
access, EXDMAC single address transfer is
performed in full access mode regardless of the
setting of this bit.
This bit has no effect on other bus master external
accesses or EXDMAC dual address transfers.
0: Full access is always executed
1: Burst access is enabled
Reserved
This bit can be read from or written to. However,
the write value should always be 0.
Rev. 1.00 Sep. 19, 2008 Page 173 of 1342
Section 6 Bus Controller (BSC)
REJ09B0467-0100