UPD6466GS datasheet(44/70 Pages) NEC

44 / 70 page

µPD6466

This command sets the information selected by a mask code option in the

µPD6461 and 6462.

The default setting is as follows:

OSC

= 0

: LC oscillation

VST

= 0

: 3-row units

COC

= 0

: RGB + VC1 + VC2

(OP1, OP0) = (0, 1) : Option B

= 0

: Black character

= 0

: Character blinks

•

Dot clock control

The dot clock for character display is set.

The dot clock is selected from LC oscillation and external clock input.

•

Vertical display start position control

The character display start position and setting accuracy are set.

The setting accuracy is selected from 3 rows and 9 rows.

•

Pin selection control

The output pins of the character and blanking signals are set.

The output pins are selected from the following two types:

•

RGB + VC1 + VC2

: Signal output pins = VR, VG, VB, VBLK, VC1, BLK1, VC2, BLK2

•

RGB + RGB compatible BLK : Signal output pins = VR, VG, VB, RBLK, GBLK, BBLK, VC1, BLK1

•

Output selection control

The output formats of VC1 and VC2 are set.

The output formats are selected from options A, B, and C (refer to 1.3 Display with RGB + VC1 + VC2 Pins).

The output formats are set only when RGB + VC1 + VC2 is selected by means of pin selection control. Select

option B when RGB + RGB compatible BLK is selected.

•

Character color reverse control

The character when color displayed is turned ON is specified.

Select the character from black character (with frame specification invalid) or white character (with frame

specification valid) (refer to 3.5 Character Color Reverse ON/OFF Command).

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