LC79451KB Datasheet, PDF (26/38 Pages) ON Semiconductor – Controller and Driver

(2) Control Register 2 (Operating Control)
LC79451KB
Address : F1
D7
D6
*
*
*
*
D5
D4
D3
D2
D1
D0
*
OFFBLK
DISCON
VREGSEL
HVON
MODSEL
*
(0)
(0)
(0)
(0)
(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
D7
D6
D5
D4
D3
D2
D1
D0
*
*
*
*
*
DB
LE
RFSH
*
*
*
*
*
(0)
(0)
(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
No.A2223-26/38