AD6315

1/4- to 1/12 Duty VFD Controller/Driver

Anachip Corp.

www.anachip.com.tw

Rev. A5 Dec 29, 2003

8/16

(Ⅰ) Display mode setting commands

These commands initialize the AD6315 and select the number of segments and the number of grids

(1/4- to 1/12- duty, 16 segments to 24 segments).

When these commands are executed, the display is forcibly turned off, and key scanning is also stopped.

To resume display, the display command “ON” must be executed. If the same mode is selected, however,

nothing happens.

b2

b1

b0

LSB

MSB

Don't care

Display mode settings

0000: 4digits 24segments

0001: 5digits 23segments

0010: 6digits 22segments

0011: 7digits 21segments

0100: 8digits 20segments

0101: 9digits 19segments

0110: 10digits 18segments

0111: 11digits 17segments

1xxx : 12digits 16segments

0

0

Note: On power application, the 12-digit, 16-segment mode is selected.

(Ⅱ) Data setting commands

These commands set data write and data read modes.

b2

b1

b0

LSB

MSB

Don't care

Daat write and read mode settings

00: Write data to display memory

01: Write data to LED port

10: Read key data

11: Don't card

0

1

b3

Address increment mode settings (Display memory)

0: Increments address after data has been written

1: Fixes address.

Test mode settings

0: Normal operation

1: Test mode

Note: For power application, the normal operation and address increment modes are set.