AS1130 datasheet(23/67 Pages) AMSOSRAM

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[v2-01] 2016-Oct-12

AS1130 − Detailed Description

Initial Power-Up

On initial power-up, the AS1130 registers are reset to their

default values, the display is blanked, and the device goes into

shutdown mode. At this time, all registers should be

programmed for normal operation. To bring the device into

normal operation the following sequence needs to be

performed.

Start-Up Sequence

• Power-up the AS1130 (connect VDD to a source), the

devices is in shutdown;

• After 5ms the address of the AS1130 is valid and the first

I²C command can be send.

• Define RAM Configuration; bit mem_conf in the AS1130

Config Register (see Figure 45)

•On/Off Frames

•Blink & PWM Sets

• Dot Correction, if specified

• Define Control Register (see Figure 38)

• Current Source

• Display options

• Display picture / play movie

• To light up the LEDs set the shdn bit to ‘1’ for normal

operation mode (see Figure 48).

Shutdown Mode

The AS1130 device features two different shutdown modes. A

software shutdown via shutdown register (see Shutdown &

Open/Short Register (0x09)) and a hardware shutdown via the

RSTN pin.

The software shutdown disables all LEDs and stops the internal

operation of the logic. A shutdown mode via the RSTN pin

additionally powers down the power-on-reset (POR) of the

device. In this shutdown mode the AS1130 consumes only

100nA (typ.).

AS1130 Datasheet(PDF) 23 Page - ams-OSRAM AG