Rev. 1.20

17

November 25, 2015

HT9B92

Software Reset and Oscillator Mode Setting Command

Thiscommandisusedtoselectthesystemoscillatorsourceandtoinitiateasoftwarereset.

Function

(MSB) Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 (LSB) Bit0 Note

System Oscillator Setting and Software Reset

C

1

1

0

1

X

P1

P0

—

P1

Software Reset

Remark

0

No Operation (default)

When a “Software Reset” is executed, the device will be reset

to an initial condition. Other settings can be configured after

Software reset is completed.

1

Initiate a Software Reset

P0

Oscillator Mode

Remark

0

Internal Oscillator (default) ● When the internal oscillator is used, the OSCIN pin must be

connected to VSS or open-circuit.

● When the external clock mode is selected, the external clock

is supplied on the OSCIN pin.

1

External Clock Input Mode

When the software reset is executed, the device is initialized by an internal power-on reset circuit. The status of the

internal circuits after initialization is as follows:

● LCD Driver Output Waveform: A-type inversion.

● Internal oscillator source is selected.

● 1/3 bias is selected.

● LCD bias generator is off state.

● LCD Display and system oscillation are off state.

● Power save mode is set to normal current.

● Frame Frequency is set to 80Hz.

● Blinking function is switched off.

Note that if the programmed command is not defined, the function will not be affected.

Blinking Frequency Setting Command

Thiscommanddefinestheblinkingfrequencyofthedisplaymodes.

Function

(MSB) Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 (LSB) Bit0

Note

Blinking Frequency setting

C

1

1

1

0

X

P1

P0

—

Note:

P [1:0]

Blinking Frequency

Remark

00

Blinking off (default)

—

01

0.5 Hz

10

1 Hz

11

2 Hz

● Power on status: Blinking function is switched off.

● If the programmed command is not defined, the function will not be affected.