Datasheet

GE-O12864C2-TFH/R Page 10/28 16.09.2009
31
/WR(RW)
When connected to an 8080 MPU, this is LOW active.
This pin is connected to the RD signal of the 8080 MPU, and
the ST7565P series data bus is in an output status when this
signal is “L”.
When connected to a 6800 Series MPU , this is active HIGH.
This is the 6800 Serier MPU enable clock input terminal.
32
A0
This is connect to the least significant bit of the normal MPU
address bus, and it determines whether the data bits are data or
a command.
A0 = “H”: Indicates that DB0 to DB7 are display data.
A0 = “L”: Indicates that DB0 to DB7 are control data.
33
/RES
/RES is set to “L”, the settings are initialized.
The /RES signal level performs the reset operation.
34
/CS1
This is the chip select signal. When /CS1 = “L”, then the chip
select becomes active, and data/command I/O is enabled.