Example: Pseudo-static RAM may have separate
OE
and
RFSH
pins, or these may be combined
into a single
OE
/
RFSH
pin. Figure 7-17 shows an example of a circuit for generating an
OE
/
RFSH
signal. Check the device characteristics carefully, and design a circuit that fits them.
Figure 7-18 shows a setup procedure to be followed by a program.
Figure 7-17 Interconnection to Pseudo-Static RAM with OE/RFSH Signal (Example)
H8/3048 Series
PSRAM
RD
RFSH
OE RFSH
/
175
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