AS1130 datasheet(41/66 Pages) AMSCO

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ams Datasheet

Page 41

[v2-01] 2016-Oct-12

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AS1130 − Register Description

Display Option Register (0x04)

In this register the number of loops in a movie are defined. With

the scan-limit it can be controlled how many digits are

displayed in each matrix. When all 12 digits in the matrix are

displayed, the display scan rate is 430Hz (typ.). If the number of

digits to display is reduced, the update frequency is increased.

Per default this register is set to 0x20.

Figure 43:

Display Option Register Format

Note(s):

1. To stop a movie in play endless mode, bits D7:D5 have to be set to a value between 000 to 110.

0x04 Display Option Register

Bit

Bit Name

Default

Access

Bit Description

7:5

loops

001

R/W

Number of loops played in one movie

000: Not valid

001: 1 loop

010: 2 loops

011: 3 loops

100: 4 loops

101: 5 loops

110: 6 loops

111: play movie endless (needs to be reset to 0-6 to

stop movie); for scroll endless set bit end_last = ‘0’

blink_freq

R/W

Blink period

0: 1.5s

1: 3s

3:0

scan_limit

0000

R/W

Number of displayed segments in one frame

(scan-limit)

0000: CS0

0001: CS0 to CS1

0010: CS0 to CS2

0011: CS0 to CS3

0100: CS0 to CS4

0101: CS0 to CS5

0110: CS0 to CS6

0111: CS0 to CS7

1000: CS0 to CS8

1001: CS0 to CS9

1010: CS0 to CS10

1011: CS0 to CS11

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