M16C62_M Datasheet, PDF (545/615 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

External Buses
Mitsubishi microcomputers
M16C / 62A Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
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Figure 4.3.3 shows how to connect two Am29LV008B (flash memory). In 16-bit bus mode, the BHE/WRH
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pin functions as BHE. When connecting 8-bit flash memory chips to the 16-bit bus, make sure the
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______
microcomputer’s WRL pin is connected to the WR pins on both flash memory chips, and that data is
written to the flash memory in units of 16 bits beginning with an even address.
Microcomputer
CNVSS
BYTE
WRL
D0 to D15
CS0
RD
A1 to A19
CS0
CE
RD
OE
A19
to ^A18
A1 ^to
A0
WE
DQ0 ^D0
to ^to
DQ7 ^D7
Am29LV008B
CS0
CE
RD
OE
A19
to ^A18
A1 ^to
A0
WE
DQ0 ^D8
to ^to
DQ7 ^D15
Am29LV008B
Figure 4.3.3. Example of connecting two Am29LV008B's to a 16-bit data bus
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