HTG2150(2000) 데이터 시트보기 (PDF) - Holtek Semiconductor

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HTG2150
(Rev.:2000)

8-Bit 320 Pixel LCD Microcontroller

Holtek Semiconductor 

Preliminary

HTG2150

LCD driver output

The maximum output number of the HTG2150

LCD driver is 8´40. The LCD driver bias type is

²R² type, no external capacitor is required and the

bias voltage is 1/4 bias. Some of the Segment out-

puts share pins with another pins, PB4~PB7

(SEG33~SEG36), INT (SEG37), XOUT (SEG38),

XIN (SEG39). Whether segment output or I/O pin

can individually be decided by mask option.

LCD driver output can be enabled or disabled by

setting the LCD (bit 6 of LCDC; 2EH) without the

influence of the related memory condition. There

is a special function for LCD display, which is Ro-

tate function. There are 8 kinds of Rotate func-

tion, (user can change the data of the SS0 to SS3.)

An example of an lcd driving waveform (1/8

duty, 1/4 bias) is shown below.

32H z

12 34 567 812 34 56 7 812 34 5

512H z

COM 0

V DD

3 /4 V D D

2 /4 V D D

1 /4 V D D

GND

COM 1

V DD

3 /4 V D D

2 /4 V D D

1 /4 V D D

GND

SEG 0

V DD

3 /4 V D D

2 /4 V D D

1 /4 V D D

GND

L C D d is p la y m e m o r y : (B a n k 1 5 )

A d d re s s 8 0 H

81H

82H

83H

COM 0

B it0

COM 1

B it1

COM 2

B it2

COM 3

B it3

COM 4

B it4

COM 5

B it5

COM 6

B it6

COM 7

B it7

SEG 0

SEG 1

SEG 2

SEG 3

84H

85H

SEG 4 SEG 5

91H

92H

S E G 17 S E G 18

A 7H

S E G 39

11

July 24, 2000

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