UPD16664 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD16664

144/160/184/208-OUTPUT LCD COLUMN (SEGMENT) DRIVER WITH RAM

NEC => Renesas Technology 

µ PD16664

6. GRAY LEVEL CONTROL

The gray level control of the µ PD16664 offers a 25-level palette by means of frame interpolation and pulse width

modulation. From this palette, four gray levels are selected and registered in a gray level palette register.

7. GRAY LEVEL PALETTE REGISTER

The gray level palette register selects four gray levels from 25 levels in advance. This register is allocated to

1FF00H to 1FF1EH, and its relation with gray level data is as shown below.

The gray level palette register can be set for each layout position of the column driver (No. 0 to 3) that is determined

by PL0 and PL1.

Address

Layout Position No.

1FF00H

1FF02H

No.0

1FF04H

1FF06H

1FF08H

1FF0AH

No.1

1FF0CH

1FF0EH

1FF10H

1FF12H

No.2

1FF14H

1FF16H

1FF18H

1FF1AH

No.3

1FF1CH

1FF1EH

Note n = 0, 2, 4, 6, 8, 10, 12, or 14

Gray Level Data (Display Data)

Dn+1Note

DnNote

0

0

0

1

1

0

1

1

0

0

0

1

1

0

1

1

0

0

0

1

1

0

1

1

0

0

0

1

1

0

1

1

10

Data Sheet S13780EJ1V0DS00

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