4559 datasheet(78/148 Pages) RENESAS

78 / 148 page

Rev.1.04

Aug 23, 2007

Page 78 of 146

REJ03B0188-0104

4559 Group

Note 1. ”R” represents read enabled, and “W” represents write enabled.

Note 2. “r (resistor) multiplied by 3” is used at 1/3 bias, and “r multiplied by 2” is used at 1/2 bias.

Note 3. VLC3 is connected to VDD internally when SEG0 pin is selected.

Note 4. Use internal dividing resistor when SEG1 and SEG2 pins are selected.

LCD control register L1

at reset : 00002

at power down : state retained

R/W

TAL1/TL1A

L13

Internal dividing resistor for LCD power

supply selection bit (Note 2)

2r × 3, 2r × 2

r × 3, r × 2

L12

LCD control bit

Stop (OFF)

Operating

LCD duty and bias selection bits

L11

Duty

Bias

L11

Not available

1/2

1/3

L10

1/4

1/3

LCD control register L2

at reset : 00002

at power down : state retained

TL2A

L23

SEG0/VLC3 pin function switch bit (Note 3)

SEG0

1VLC3

L22

SEG1/VLC2 pin function switch bit (Note 4)

SEG1

1VLC2

L21

SEG2/VLC1 pin function switch bit (Note 4)

SEG2

1VLC1

L20

Internal dividing resistor for LCD power

supply control bit

Internal dividing resistor valid

Internal dividing resistor invalid

LCD control register L3

at reset : 11112

at power down : state retained

TL3A

L33

P23/SEG27 pin function switch bit

SEG27

1P23

L32

P22/SEG26 pin function switch bit

SEG26

1P22

L31

P21/SEG25 pin function switch bit

SEG25

1P21

L30

P20/SEG24 pin function switch bit

SEG24

1P20

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