LC79451KB datasheet(26/38 Pages) ONSEMI

26 / 38 page

LC79451KB

No.A2223-26/38

(2) Control Register 2 (Operating Control)

Address : F1

OFFBLK

DISCON

VREGSEL

HVON

MODSEL

(0)

*: Non use ( ) default

1) MODSEL

⋅⋅⋅ Control mode selection of charge-pump and oscillator

0 : Automatic charge-pump mode.

This device sets START Flag or HVON Flag, and automatically controls stopping from operating.

1 : Manual charge-pump mode.

This device sets HVON Flag, and manually controls stopping from operating.

2) HVON

⋅⋅⋅ Operation of charge-pump and oscillator

In automatic charge-pump mode, HVON Flag is automatically canceled after charge-pump rising period,

and charge-pump and oscillator stop.

In manual charge-pump mode, charge-pump and oscillator is active until canceled of HVON Flag.

0 : Stop

1 : Operate

3) VREGSEL

⋅⋅⋅ Selection of charge-pump reference voltage

0 : 1.25V Condition of use VDD2 ≥ 1.8V

1 : 2.50V Condition of use VDD2 ≥ 2.7V

4) DISCON

⋅⋅⋅ Operation setting of discharge circuit

0 : Stop

1 : Operate

5) OFFBLK

⋅⋅⋅ Selection of image when operated automatic discharge function.

0 : Panel maintains current image.

1 : Panel displays black.

Note: Turn off power supply as setting of RESET = 1 when want to be black.

(3) Control Register 3 (Image Control)

Address : F2

RFSH

(0)

*: Non use ( ) default

1) RFSH

⋅⋅⋅ Waveform mode selection

0 : Normal drive

1 : Refresh drive

2) LE

⋅⋅⋅ Data latch

This signal is used when want to latch (shift) only image data without changing image.

0 : Data do not shift.

1 : Data shift.

Latch 1 (New image data)

⇒ Latch 2 (Old image data)

Image data input buffer

⇒ Latch 1 (New image data)

LE Flag is automatically canceled with finish of latch.

3) DB

⋅⋅⋅ Image data inversion

0 : Non-inversion

1 : Inversion

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