hd66766r Renesas Electronics Corporation., hd66766r Datasheet - Page 10

• Manufacturer Part Number: hd66766r
• Description: 132 X 176-dot Graphics Lcd Controller/driver For 65k Colors - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

HD66766R
Pin Functions
Table 4
Signals
IM2-1,
IM0/ID
CS*
RS
E/WR*/SCL
RW/RD*
DB0/SDI
DB1/SDO
1
Pin Functional Description
Number of
Pins
3
1
1
1
1
1
I/O
I/O
I
I
I
I
I
I/O
MPU
Connected to
GND or V
MPU
MPU
MPU
MPU
MPU
CC
Serves as a 16-bit bi-directional data bus.
For an 8-bit bus interface, data transfer uses DB15-DB8; fix
unused DB7-DB0 to the Vcc or GND level.
For a clock-synchronous serial interface, serves as a serial
data output pin (SDO). Successive bit values are output on
the falling edge of the SCL signal.
10
Functions
Selects the MPU interface mode:
IM2
GND
GND
GND
GND
Vcc
When a serial interface is selected, the IM0 pin is used as
the ID setting for a device code.
Selects the HD66766R:
Low: HD66766R is selected and can be accessed
High: HD66766R is not selected and cannot be accessed
Must be fixed at GND level when not in use.
Selects the register.
Low: Index/status
For a register or a synchronous clock interface, fixed to
the Vcc or GND level.
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 a synchronous clock interface, serves as the
synchronous clock signal.
For a 68-system bus interface, serves as a signal to select
data read/write operation.
Low: Write
For an 80-system bus interface, serves as a read strobe
signal and reads data at the low level.
For a synchronous clock interface, fixed to the Vcc or
GND level.
Serves as a 16-bit bi-directional data bus.
For an 8-bit bus interface, data transfer uses DB15-DB8;
fix unused DB7-DB0 to the Vcc or GND level.
For a clock-synchronous serial interface, serves as the
serial data input pin (SDI). The input level is read on the
rising edge of the SCL signal.
GND
GND
GND
Vcc
Vcc
IM1
Rev. 1.0-1 / September 2002
GND
Vcc
GND
Vcc
ID
IM0/ID0
High: Read
Clock synchronized serial interface
High: Control
68 system 8-bit bus interface
80 system 16-bit bus interface
80 system 8-bit bus interface
68 system 16-bit bus interface
MPU Interface mode