悠景科技股份有限公司
UG-2864HSWEG01
128X64
Evaluation Kit User GuideWriter: James Wang
E-mail: James_Wang@univision.com.tw
Version: Preliminary
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Contents
悠景科技股份有限公司
1. REVISION HISTORY……………………………………………………………………………...3 2. EVK Schematic……………………………………………………………………………………..4
3. Symbol define………………………………………………………………………………………5
4. TIMMING CHARACTERISTICS…………………………...……………………………………...6
4.1 8080-Series MPU parallel Interface……………………………………………………………7
4.2 6800-Series MPU parallel Interface……………………………………………………………9
4.3 SPI Interface……………………………………………………………………………………10
4.4 IIC Interface ……………………………………………………………………………………11
5. EVK use introduction………………………………………………………………………..…14
6.Power down and Power up Sequence……………………………………………………...…17
7. How to use SSD1306 module………………………………………………………………….18
7.1 Initial Step Flow…………………………………………………………………………...18
7.2 RD recommend Initial Code for IIC Interface………………………………………19
7.2.1 Sub Function for IIC Interface……………………………………………….20
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1. REVISION HISTORY Date Page Contents 2008/10/01 Preliminary Version Preliminary 0.0 3
2. EVK Schematic
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* R1 should be replaced as 560kΩ while supplying 9V on VCC externally.
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3. Symbol define
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VCC : Power supply for panel driving voltage.
VBAT : Power supply for panel driving voltage(Embedded Charge Pump). VDD：Power supply for core logic operation.
VSS：This is ground pin.
BS0~BS2：MUC bus interface selection pin(Page 4 Table7-1). CS：This pin is chip select input(active LOW). RES：This pin is reset signal input(active LOW).
D/C：This is DATA/COMMAND control pin. When it is Pulled HIGH, the data at D[0~7] is treated as data. When it is pulled LOW, the data at D[0~7] will be transferred to the command register.
In I2C mode, this pin acts as SA0 for slave address select.
R/W：This is read/write control input pin connecting to the MCU interface.
When interface to a 6800-series microprocessor , Read mode will be carried out when this pin is pulled HIGH and write mode when low .
When interface to an 8080-microprocessor , this pin when be the data Write input.
When serial interface is selected, this pin must be connected to Vss.
E/RD：When interface to a 6800-series microprocessor , this pin will be used as the
Enable(E) signal.
When interface to an 8080-microprocessor , this pin receives the
Read(RD#)signal.
D0~D7：These are 8-bit bi-directional data bus to be connected to the microprocessor’s data bus.
When serial interface mode is selected, D0(SCLK) will be the serial clock input,D1(SDIN) will be the serial data input,D2 should be left opened.
When I2C mode is selected,D1(SDAin) AND D2(SDAout) should be tied together,D0(SCL) is the I2Cclock input
IREF：This is segment output current reference pin. VCOMH：This pin for COM signal deselected level voltage.
A capacitor should be connected between this pin and VSS.
VBAT: It should be connected to VDD (Charge Pump DISABLE) or could be connected to individual power voltage supply. VBAT= 3.4~4.2V.(Charge Pump ENABLE) C1P/C1N: It should be connected a capacitor. C2P/C2N: It should be connected a capacitor.
VBREF : It should be connected VSS. It should be kept NC if it is not used. BS[2:0]:MCU bus interface selection pins.
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