HT0610 datasheet(16/22 Pages) HOLTEK

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Bit Pattern

(D7~D0)

Command

Comment

0011100X0

Set Bias Ratio

X0=0: Set 1/7 bias (POR initial state)

X0=1: Set 1/5 bias

0011101X0

Reserved

X0=0: Normal operation (POR initial state)

X0=1: Test mode

(Note: make sure to set X0=0: during application)

0011110X0

Set Display with Icon Line

X0=0: Set display mode without Icon line (POR initial state)

X0=1: Set display mode with Icon line

00111110

Set Icon Display Mode

Power saving icon display mode, COM 0 to COM 31 will be dis-

abled.

010X4X3X2X1X0

Set Vertical Scroll Value

Use X4X3X2X1 as number for lines to scroll.

Scroll value=0 upon POR

01100A1A0X0

Set Static Icon Control Sig-

nals

A1A0=00: Select Icon 1 (POR initial state)

A1A0=01: Select Icon 2

A1A0=10: Select Icon 3

A1A0=11: Select Icon 4

X0=0: Turned selected Icon off (POR state)

X0=1: Turned selected Icon on

0110100X0

Set Duty Cycle

X0=0: 1/32 duty and triple enabled (POR initial state)

X0=1: 1/16 duty and doubler enabled

0110101X0

Set IDD Reduction Mode

X0=0: Normal mode

X0=1: IDD reduction mode

011011X1X0

Set Temperature Coefficient

X0=00: 0.00% (POR initial state)

X0=01:

-0.18%

X0=10:

-0.22%

X0=11:

-0.35%

0111000X0

Increase/Decrease Contrast

Value

X0=0: Decrease by one level (POR initial state)

X0=1: Increase by one level

(Note: increment/decrement wraps round among the 16 contrast

levels. Start at the lowest level when POR.

0111001X0

Reserved

0111010X0

Reserved

0111011X0

Reserved

X0=0: Normal operation (POR initial state)

X0=1: Test mode select

(Note: make sure to set X0=0 during application)

0111100X0

Reserved

0111101X0

Set Internal/External

Oscillator

X0=0: Internal oscillator (POR initial state)

X0=1: External oscillator

If resistors are placed at OSC1 and OSC2. For external oscillator,

simply feed clock in OSC2.

0111110X0

Reserved

0111111X0

Set Oscillator Disable/Enable

X0=0: Oscillator disable (POR initial state)

X0=1: Oscillator enable

This is the master control for oscillator circuitry.

This command should be issued after the

²external/internal oscilla-

tor

² command.

1X6X5X4X3X2X1X0 Set BGDRAM Address

Set BGDRAM column address.

Use X6X5X4X3X2X1X0 as address bits

HT0610

Rev. 1.00

February 24, 2004

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