NHD-3.12-25664UMY3 Datasheet NHD-3.12-25664UMY3 | P16-P18

[16]

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10.3. SerialInterface(4‐wire)

The4‐wireserialinterfaceconsistsofserialclockSCLK,serialdataSDIN,D/C,and/CS.

D0actsasSCLKandD1actsasSDIN.D2shouldbeleftopen.D3~D7,E,andR/WshouldbeconnectedtoGND.



Function /RD /WR /CS D/C D0

WriteCommand TieLOW TieLOW 0 0 ↑

WriteData TieLOW TieLOW 0 1 ↑



SDINisshiftedintoan8‐bitshiftregisteroneveryrisingedgeofSCLKintheorderofD7,D6,…D0.

D/CissampledoneveryeighthclockandthedatabyteintheshiftregisteriswrittentotheGDRAMor

commandregisterinthesameclock.

Note:Read

isnotavailableinserialmode.



10.4. SerialInterface(3‐wire)

The3‐wireserialinterfaceconsistsofserialclockSCLK,serialdataSDIN,and/CS.

D0actsasSCLKandD1actsasSDIN.D2shouldbeleftopen.D3~D7,E,R/W,andD/Cshouldbeconnectedto

GND.



Function /RD /WR /CS D/C D0

WriteCommand TieLOW TieLOW 0 TieLOW ↑

WriteData TieLOW TieLOW 0 TieLOW ↑



SDINisshiftedintoan9‐bitshiftregisteroneveryrisingedgeofSCLKintheorderofD/C,D7,D6,…D0.

D/C(firstbitofthesequentialdata)willdetermineifthefollowingdatabyteiswrittentotheDisplayData

RAM(D/C=1)orthecommandregister(D/C=0).

Note:Readisnotavailableinserialmode.



Fordetailedprotocolinformation,seedatasheet:http://www.newhavendisplay.com/app_notes/SSD1322.pdf

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[17]

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11. ExampleInitializationSequence:



Set_Command_Lock(0x12);  //UnlockBasicCommands (0x12/0x16)

Set_Display_On_Off(0x00);  //DisplayOff(0x00/0x01)

Set_Column_Address(0x1C,0x5B);

Set_Row_Address(0x00,0x3F);

Set_Display_Clock(0x91);  //SetClockas80Frames/Sec

Set_Multiplex_Ratio(0x3F);  //1/64Duty(0x0F~0x3F)

Set_Display_Offset(0x00);  //ShiftMappingRAMCounter(0x00~0x3F) 

Set_Start_Line(0x00);  //SetMappingRAMDisplayStartLine (0x00~0x7F)

Set_Remap_Format(0x14);  //SetHorizontalAddressIncrement

//ColumnAddress

0MappedtoSEG0

//DisableNibbleRemap

//ScanfromCOM[N‐1]toCOM0

//DisableCOMSplitOddEven

//EnableDualCOMLineMode

Set_GPIO(0x00);//DisableGPIOPinsInput

Set_Function_Selection(0x01); //EnableInternalVDDRegulator

Set_Display_Enhancement_A(0xA0,0xFD); //EnableExternalVSL

Set_Contrast_Current(0x9F); //SetSegment

OutputCurrent

Set_Master_Current(0x0F);  //SetScaleFactorofSegmentOutputCurrentControl

//Set_Gray_Scale_Table();  //SetPulseWidthforGrayScaleTable

Set_Linear_Gray_Scale_Table(); //setdefaultlineargrayscaletable

Set_Phase_Length(0xE2);  //SetPhase1as5Clocks&Phase2as14Clocks

Set_Display_Enhancement_B(0x20); //EnhanceDrivingSchemeCapability(0x00/0x20)

Set_Precharge_Voltage(0x1F);

//SetPre‐ChargeVoltageLevelas0.60*VCC

Set_Precharge_Period(0x08); //SetSecondPre‐ChargePeriodas8Clocks

Set_VCOMH(0x07);//SetCommonPinsDeselectVoltageLevelas0.86*VCC

Set_Display_Mode(0x02);  //NormalDisplayMode(0x00/0x01/0x02/0x03)

Set_Partial_Display(0x01,0x00,0x00); //DisablePartialDisplay

Set_Display_On_Off(0x01);

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12. Multi‐FontIC‐>MPUInterface



12.1. SerialInterface

TheserialinterfaceconsistsofserialclockMF_SCLK,serialdatainMF_SI,serialdataoutMF_SO,chipenable

/MF_CS2.



Function MF_SCLK MF_SI MF_SO /MF_CS2

SendFontAddress↑DATA X 0

ReadFontData

↓

X DATA 0



TheMulti‐Fontdeviceisenabledbyahigh‐to‐lowtransitionon/MF_CS2./MF_CS2mustremainLOWforthe

durationofanycommand‐inordata‐outsequence.

TheFontAddressisshiftedinontheMF_SIlineontherisingedgeofMF_SCLK.

TheFontDataisshiftedoutontheMF_SOlineonthefallingedgeofMF_SCLK.





P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21

NHD-3.12-25664UMY3

Mfr. #:

Buy NHD-3.12-25664UMY3

Manufacturer:

Newhaven Display

Description:

OLED Displays & Accessories OLED 256x64 Yellow 3.12" Multi-Font 3V

Lifecycle:

New from this manufacturer.

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NHD-3.12-25664UMY3