Datasheet

Section 6 Bus Controller (BSC)
Page 228 of 1408 R01UH0309EJ0500 Rev. 5.00
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
When DRAM space is accessed, the RD signal is output as the OE signal for DRAM. When
connecting DRAM provided with an EDO page mode, the OE signal should be connected to the
(OE) pin of the DRAM. Setting the OEE bit to 1 in DRAMCR enables the OE signal for DRAM
space to be output from a dedicated OE pin. In this case, the OE signal for DRAM space is output
from both the RD pin and the (OE) pin, but in external read cycles for other than DRAM space,
the signal is output only from the RD pin.