ST2202A datasheet(44/75 Pages) SITRONIX

44 / 75 page

ST2202A

Ver 2.5

44/75

9/16/2008

TABLE 16-4 LCD Screen Width Register

Address Name

R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

$043

LXMAX R/W

XM[7]

XM[6]

XM[5]

XM[4]

XM[3]

XM[2]

XM[1]

XM[0]

0000 0000

Bit 7~0:

XM[7:0] : LCD screen width

LCD screen width = LXMAX * 8

16.4.4 LCD Screen Height Register

The LCD screen height register (LYMAX) is used to specify the weight of the LCD panel in pixels.

TABLE 16-5 LCD Screen Height Register

Address Name

R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

$044

LYMAX R/W

YM[7]

YM[6]

YM[5]

YM[4]

YM[3]

YM[2]

YM[1]

YM[0]

0000 0000

Bit 7~0:

YM[7:0] : LCD screen height

LCD screen height = LYMAX * 2

16.4.5 LCD Panning Offset Register

The LCD panning offset register (LPAN) is used to control how many pixels the picture is shifted to the left. Values from 0 to 7

can be filled into this register to denote the offset, while 0 means no panning control.

TABLE 16-6 LCD Panning Offset Register

Address Name

R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

$045

LPAN

R/W

PAN[2]

PAN[1]

PAN[0]

- - - - -000

Bit 2~0:

PAN[2:0] : LCD panning offset from zero to 7 pixels max.

16.4.6 LCD Control Register

The LCD control register (LCTR) controls the enabling switch of LCDC, display panel on/off or reverse and the PWM contrast

control block.

TABLE 16-7 LCD Control Register

Address Name

R/W

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

$047

LCTR

R/W

LPWR

BLNK

REV

100- - - - -

Bit 7:

LPWR : LCDC enable/disable bit

0 = Enable LCDC ( POFF signal outputs high level)

1 = Disable LCDC ( POFF signal outputs low level)

Bit 6:

BLNK : LCD display ON/OFF bit

0 = LCD display on ( BLANK signal outputs contrast control signal)

1 = LCD display off ( BLANK signal outputs low level)

Bit 5:

REV : LCD display reverse

0 = Normal display

1 = Reverse display

ST2202A Datasheet(PDF) 44 Page - Sitronix Technology Co., Ltd.

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