HD66760 Datasheet, PDF (8/105 Pages) Hitachi Semiconductor – 104 X 80-dot Graphics LCD Controller/Driver for 256 Colors

HD66760
Pin Functions
Table 1 Pin Functional Description
Signals
IM2, IM1,
IM0/ID
Number
of Pins I/O
3
I
CS*
1
I
RS
1
I
E/WR*/SCL 1
I
RW/RD*/ 1
I
SDA
DB0-DB15 16
I/O
Connected
to
Functions
GND
or V_CC
Selects the MPU interface mode:
IM2 IM1 IM0/ID
GND GND GND
GND GND Vcc
GND Vcc GND
GND Vcc Vcc
Vcc GND ID
Vcc Vcc ID
MPU interface mode
68-system 16-bit bus interface
68-system 8-bit bus interface
80-system 16-bit bus interface
80-system 8-bit bus interface
Clock synchronized serial interface
I2C bus interface
Inputs the ID of the device ID code for an I2C bus and
clock synchronized serial interface.
MPU
Low: HD66760 is selected and can be accessed
High: HD66760 is not selected and cannot be accessed
Must be fixed at GND level when not in use.
MPU
Selects the register. (Low: Index/status, High: Control)
Must be fixed at GND level when not in use.
MPU
For a 68-system bus interface, serves as an enable
signal to activate data read/write operation.
For an 80-system bus interface, serves as a write
strobe signal and writes data at the low level.
For an I2C bus or clock synchronized serial interface,
inputs the serial transfer clock.
MPU
For a 68-system bus interface, serves as a signal to
select data read/write operation. (Low: Write, High:
Read)
For an 80-system bus interface, serves as a read
strobe signal and reads data at the low level.
For an I2C bus or clock synchronized serial interface,
serves as the bi-directional serial transfer data.
Sends/Receives data.
MPU
Serves as a 16-bit bidirectional data bus.
For an 8-bit bus interface, data transfer uses DB15-
DB8; fix unused DB7-DB0 to the Vcc or GND level.
When I2C or clock synchronized serial interface is
used, fix DB0-DB15 to the Vcc or GND level.
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