Hitachi H8/3048 Hardware Manual page 179

www.DataSheet4U.com
Set area 3 for 16-bit access
CS
Set P8 DDR to 1 for output
1 3
Set RTCOR
Set bits CKS2 to CKS0 in RTMCSR
Write H'23 in RFSHCR
Wait for DRAM to be initialized
DRAM can be accessed
Figure 7-8 Setup Procedure for 2WE 1-Mbit DRAM (1-Mbyte Mode)
165