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2.3.3 Expand of Flash Memory
Rev.1.0 Feb 06. 2007 2-7
REJ10J0916-0100
2
2.3.3 Expand of Flash Memory
M3A-HS86 has installed the mounting space to which the flash memory can be expanded externally.
The mountable flash memory is 32M bit or 64M bit flash memory with 3.3V power-supply voltage, 16-bit bus width,
and TSOP-48 pin (20 x 12mm).
By a DIP switch (SW4-4), the validity or invalidity of write protect for flash memory can be switched.
Figure2.3.3 shows an example of 32-Mbit Flash Memory connection.
SH7086
A22 - A1
D15 - D0
RD
WRL
CS0
A21 - A0
DQ15 - DQ0
22
16
BYTE
OE
WE
CE
RP
RY/BY
WP
3.3V
Reset
NC
DIP SW
SW4-4
Vcc
Flash Memory
32Mbit(2M Word x16bit) or
64Mbit(4M Word x16bit)
Figure2.3.3 Connection Example with Flash Memory
Note: Only the M3A-HS86 (3.3V version) can connect the flash memory to outside.