M16C62_N Datasheet, PDF (538/621 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY

External Buses
Mitsubishi microcomputers
M16C / 62 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Figure 5.4.3 shows how to connect two Am29LV008B (8-bits flash memory). In 16-bit bus mode, the
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BHE/WRH pin functions as BHE. When connecting 8-bit flash memory chips to the 16-bit bus, make sure
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the 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.
M16C/62 group
CNVSS
BYTE
WRL
D0 to D15
CS0
RD
A1 to A19
CS0
CE
RD
OE
A19
to ^A18
A1 ^to
A0
WE
DQ0
to
D0
to
DQ7 ^D7
Am29LV008B
CS0
CE
RD
OE
A19
to ^A18
A1 ^to
A0
WE
DQ0
to
D8
to
DQ7 ^D15
Am29LV008B
Figure 5.4.3. Example of connecting two Am29LV008B's to a 16-bit data bus
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