Datasheet
DEP 128128E-Y Production Specification
Version: 0 PAGE: 6
12 D/C
This pin is Data/Command control pin connecting to the MCU.
When the pin is pulled HIGH, the data at D[7:0] will be interpreted as data.
When the pin is pulled LOW, the data at D[7:0] will be transferred to a
command register.
In I2C mode, this pin acts as SA0 for slave address selection.
When 3-wire serial interface is selected, this pin must be connected to VSS.
13 W/R#
This pin is read / write control input pin connecting to the MCU interface.
When 6800 interface mode is selected, this pin will be used as Read/Write
(R/W#) selection input. Read mode will be carried out when this pin is pulled
HIGH and write mode when LOW.
When 8080 interface mode is selected, this pin will be th
e Write (WR#) input.
Data write operation is initiated when this pin is pulled LOW and the chip is
selected.
14 RD#
This pin is MCU interface input.
When 6800 interface mode is selected, this pin will be used as the Enable (E)
signal.
Read/write operation is initiated when this pin is pulled HIGH and the chip is
selected.
When 8080 interface mode is selected, this pin receives the Read (RD#)
signal. Read
operation is initiated when this pin is pulled LOW and the chip is
selected.
When serial or I2C interface is selected, this pin must be connected to VSS.
15 D0
These pins are bi-directional data bus connecting to the MCU data bus.
Unused pins are recommended to tie LOW.
When serial interface mode is selected, D0 will be the serial clock input:
SCLK; D1 will be the serial data input: SDIN and D2 should be kept NC.
When I2C mode is selected, D2, D1 should be tied together and serve as
SDAout, SDAin in application and D0 is the serial clock input, SCL.
16 D1
17 D2
18 D3
19 D4
20 D5
21 D6
22 D7
23 VCC
Power supply for panel driving voltage. This is also the most positive power
voltage supply pin. It is supplied by external high voltage source.
24 VSS Ground pin.