M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 538

• Manufacturer Part Number: M30622MA-XXXFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
• Manufacturer: RENESAS [Renesas Technology Corp]

External Buses
Figure 5.4.3. Example of connecting two Am29LV008B's to a 16-bit data bus
Figure 5.4.3 shows how to connect two Am29LV008B (8-bits flash memory). In 16-bit bus mode, the
BHE/WRH pin functions as BHE. When connecting 8-bit flash memory chips to the 16-bit bus, make sure
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.
______
______
CNV
BYTE
M16C/62 group
SS
D
A
0
1
to D
to A
WRL
CS0
RD
19
15
______
______
CS0
RD
A
A
to
19
1
A
A
CE
to
OE
Am29LV008B
18
0
WE
DQ
DQ
to
______
0
7
D
D
to
0
7
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
CS0
RD
A
A
to
19
1
CE
OE
A
A
to
Am29LV008B
18
0
Mitsubishi microcomputers
M16C / 62 Group
WE
DQ
to
DQ
0
7
D
D
to
15
8
523