UPD16435AN-001-001 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD16435AN-001-001

DOT MATRIX LCD CONTROLLER/DRIVER

NEC => Renesas Technology 

µPD16435, 16435A

(11) Extension X Address Register (Register Address = 1001B)

Performs extension display, display screen X (segment) direction address setting. X addresses include the scroll RAM

area. This register must be executed before the extension Y address register.

MSB

LSB

b4 b3 b2 b1 b0

× : Don’t Care

After powering on: Undefined

Character X address (00H to 15H)

(12) Extension Y Address Register (Register Address = 1010B)

Performs extension display, display screen Y (common) direction address setting. This register must be executed after

the X address.

MSB

LSB

b2 b1 b0

× : Don’t Care

Character Y address (00H to 07H)

After powering on: Undefined

(13) Scroll Register (Register Address = 1011B)

Performs scroll setting.

MSB

LSB

b7 b6 b5 b4 b3 b2 b1 b0

× : Don’t Care

Scroll direction setting

00: Scroll reset Note 1

01: Right scroll

10: Left scroll

11: Scrolling stopped Note 2

Scrolling by specification of any line is possible by setting

a character Y address after this command. Scrolling can only

be performed for one character-unit line.

Scroll speed setting (00H to 3FH)

This value specifies the number of frames for a one-bit move.

If 00H is set, scrolling is stopped.

Notes 1. When scroll reset is executed, the screen leftmost character X address returns to 00H, and scrolling is stopped.

2. After scrolling has been stopped, character Y address setting is necessary when scrolling is restarted. It is not

possible to set a different address from the character Y address before scrolling was stopped.

After powering on

0 0 0 0 0 000

15

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