SED1278F/D |
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Timing Chart |
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Read Cycle | VIH1 |
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| VIH1 |
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RS |
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VIL1 |
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| VIL1 |
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| tAS |
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| tAH |
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R/W | VIH1 |
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| VIH1 |
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| tWEH |
| tAH |
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| VIH1 | VIH1 | tfE |
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| VIL1 | VIL1 | VIL1 | ||
E |
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tfE |
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| tDHR |
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| tRD |
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DB0 to DB7 |
| VOH1 | Significant | VOH1 | |
| VOL1 | Data |
| VOL1 | |
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| tcycE |
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Write Cycle | VIH1 |
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| VIH1 |
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RS |
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VIL1 |
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| VIL1 |
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| tAS |
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| tAH |
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R/W | VIL1 |
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| VIL1 |
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| tWEH |
| tAH |
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| VIH1 | VIH1 | tfE |
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| VIL1 | VIL1 | VIL1 | ||
E |
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tfE |
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| tDH |
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| tDS |
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DB0 to DB7 |
| VIH1 | Significant | VIH1 | |
| VIL1 | Data |
| VIL1 | |
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| tcycE |
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DISPLAY COMMAND
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Parameter | RS | R/W | DB7 | DB6 | DB5 |
| DB4 | DB3 | DB2 | DB1 | DB0 | Note |
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CLEAR DISPLAY | 0 | 0 |
| 0 | 0 | 0 |
| 0 |
| 0 |
| 0 | 0 | 1 |
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CURSOR HOME | 0 | 0 |
| 0 | 0 | 0 |
| 0 |
| 0 |
| 0 | 1 | 1 |
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ENTRY MODE SET | 0 | 0 |
| 0 | 0 | 0 |
| 0 |
| 0 |
| 1 | I/D | I/D | DB1=1: Increment, DB1=0: Decrement | |||
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| DB0=1: The display is shifted. |
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| DB0=0: The display is not shifted. |
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DISPLAY ON/OFF | 0 | 0 |
| 0 | 0 | 0 |
| 0 |
| 1 |
| D | C | C | DB2=1: Display on | DB2=0: Display off | ||
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| DB1=1: Cursor on | DB1=0: Cursor off | |
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| DB0=1: Brinking on | DB0=0: Brinking off | |
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CURSOR/DISPLAY SHIFT | 0 | 0 |
| 0 | 0 | 0 |
| 1 |
| S/C |
| R/L |
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| DB3=1: Shifts display one character |
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| DB2=1: Right shift, DB2=0: Left shift |
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SYSTEM SET | 0 | 0 |
| 0 | 0 | 1 |
| DL |
| N |
| F |
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| DB4=1: 8 bits, DB4=0: 4 bits |
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| DB3=1: 2 lines display (1/16 duty), |
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| DB3=0: 1 line display |
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| DB2=1: 5 10 dots, 1/11 duty | ||
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| ( DB2=0: 5 7 dots, 1/8 duty | ||
SET CGRAM ADDRESS | 0 | 0 |
| 0 | 1 |
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| ACG |
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| The address length that can be set is 64 addresses. | ||||
SET DDRAM ADDRESS | 0 | 0 |
| 1 |
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| ADD |
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| The address length that can be set is 80 addresses. | |||||
READ BUSY FLUG/ | 0 | 1 |
| BF |
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| AC |
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| DB7=1: Busy (instruction not accepted) | ||||
ADDRESS COUNTER |
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| DB7=0: Ready (instruction accepted) | ||
WRITE DATA | 1 | 0 |
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| Write Data |
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READ DATA | 1 | 1 |
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| Read Data |
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Don‘t care
4