Chapter 3 Lcd Controller/Driver; Functions Of Lcd Controller/Driver - NEC mPD71312 User Manual

Lcd controller/driver dedicated to 78k0/kx2 and 78k0r/kx3

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The functions of the LCD controller/driver in the

(1)

The LCD driver reference voltage generator can switch internal voltage boosting, external resistance division,

and internal resistance division.

(2)

Automatic output of segment and common signals based on automatic display data memory read

(3)

Five different display modes:

• Static

• 1/2 duty (1/2 bias)

• 1/3 duty (1/2 bias)

• 1/3 duty (1/3 bias)

• 1/4 duty (1/3 bias)

(4)

Four different frame frequencies, selectable in each display mode

(5)

Segment signal outputs: 36 (S0 to S35) (52-pin product),

Common signal outputs: 4 (COM0 to COM3)

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CHAPTER 3 LCD CONTROLLER/DRIVER

PD71312 are as follows.

40 (S0 to S39) (64-pin product)

User's Manual U18438EJ2V0UD

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