UPD6466GS datasheet(38/70 Pages) NEC

38 / 70 page

µPD6466

3.12 Character Size Control Command

The character size can be specified in row units (independently in the horizontal and vertical directions. Because

this is a 2-byte command, input of 16 bits is necessary when this command is input more than once successively).

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

D15

D14

D13

D12

D11

D10

100110

SV1

SV0

SH1

SH0

AR3

AR2

AR1

AR0

(MSB)

(LSB)

Row specification control bit

Function

Sets row 0

Sets row 1

Sets row 11

Setting prohibited

AR3

AR2

AR1

AR0

Horizontal character size control bit

Function

SH1

1 dot = 1t dots (horizontal standard size)

1 dot = 2t dots (horizontal

×2 size)

1 dot = 3t dots (horizontal

×3 size)

1 dot = 4t dots (horizontal

×4 size)

1t dots ( s) =

(fOSC: LC oscillation frequency

or external clock

frequency)

fOSC (MHz)

SH0

Vertical character size control bit

Function

SV1

1 dot = 1H (vertical standard size)

1 dot = 2H (vertical

×2 size)

1 dot = 3H (vertical

×3 size)

1 dot = 4H (vertical

×4 size)

SV0

(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

SV0

SV1

011001

AR0

AR1

AR2

AR3

SH0

SH1

•

Row specification control

The character size is specified in row units. Which row is specified is controlled.

•

Character size control

Four steps (16 types) of character size can be selected in the vertical and horizontal directions independently.

UPD6466GS Datasheet(PDF) 38 Page - NEC

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