PD16435_15 datasheet(13/38 Pages) RENESAS

13 / 38 page

µPD16435, 16435A

(10) Extension Register (Register Address = 1000B)

Performs magnification, reverse, cursor, and time mark setting.

MSB

LSB

× : Don’t Care

b3 b2 b1 b0

In case of magnification setting

00: Standard

01:

×2 horizontal

10:

×2 vertical

11:

×4 magnification (×2 horizontal & vertical)

Magnification display is performed at any line position; characters of different

sizes cannot be displayed on the same line.

Line specification magnification display is possible by setting an extension Y

address after this command, and multiple-line magnification display is possible

by setting consecutive extension Y address.

After powering on

Extension function setting

00: Magnification setting

01: Reverse setting

10: Cursor setting

11: Character blink setting

In case of reverse setting

00: Reverse cancellation (line specification)

01: Reverse (line specification)

10: Reverse cancellation (full screen)

11: Reverse (full screen)

Line specification reverse display is possible by setting an extension Y address

after this command, and multiple-line reverse display is possible by setting

consecutive extension Y addresses.

Regarding the reverse display Y address direction, a total of 9 dots (7 character

part dots + 1 cursor part dot + 1 top space dot) are reversed.

In the case of

×2 vertical magnification or ×4 magnification, a total of 18 dots

(14 character part dots + 2 cursor part dots + 2 top space dots) are reversed.

In case of cursor setting

00: Cursor non-display

01: Cursor display (blinking stopped)

10: Cursor display (blink operation)

11: Don’t Care

Blinking display can be performed at any address by specifying an extension X

and Y address after this command. The specification is for one address only.

The address specification should be performed in the order: X address

→ Y address.

In case of character blink setting

X0: Blinking stopped

X1: Blink operation

Blinking can be performed at any address by specifying an extension X and Y

address after this command. The specification is for one address only.

The address specification should be performed in the order: X address

→ Y address.

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