UPD6466GS datasheet(43/70 Pages) NEC

43 / 70 page

µPD6466

3.14 Initial Status Setting Command

This command initializes the operation mode.

Execute this command first on power application.

To change the initial setting, be sure to execute this command with the display OFF.

(1) With MSB first (The command is input from MSB (D15).)

D15

D14

D13

D12

D11

D10

101101000

OP1

OP0

COC

VST

OSC

(MSB)

(LSB)

Vertical display start position control bit

Function

Vertical display start position setting unit = 3 rows

Vertical display start position setting unit = 9 rows

VST

Output selection control bit

Function

Option A

Option B

Option C

Must not be specified

OP1

OP0

Pin selection control bit

Function

RGB + VC1 + VC2

RGB + RGB compatible BLK (3BLK)

COC

Dot clock control bit

Function

LC oscillation

External clock input

OSC

Character color reverse control bit

Function

Character color: Black (frame specification is invalid)

Character color: White (frame specification is valid)

Function selection bit

Function

Character blinks

Character left to right reverse

(2) With LSB first (Use of each bit is the same as (1). The command is input from LSB (D0).)

(LSB)

(MSB)

D10

D11

D12

D13

D14

D15

00101101

OSC VST COC OP0

OP1

UPD6466GS Datasheet(PDF) 43 Page - NEC

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