511820003 datasheet(25/52 Pages) OSRAM

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Mira130

Functional Description

Datasheet

• PUBLIC

DS000715

• v6-00 • 2023-Aug-09

│ 24

8.2

Configuration Interface

The on-chip registers can be read and written through the standard I²C interface. The device address

of the I²C interface is determined by the SID0 and SID1 pins as shown in Figure 23.

Figure 23:

I²C Bus Device Address Control

7-bit I²C Bus Device Address

SID0

SID1

’h30

Low

’h31

High

Low

’h32

Low

High

’h33

High

In the example below, the first line below shows a standard I²C communication protocol for 7-bit slave

address, 16-bit sub address and 8-bit data. The slave address is the I²C bus device address, which is

7-bit. The R/W bit is either 1 for read or 0 for write. The 2 sub address bytes are the high byte and low

byte of the 16-bit address of the register to be accessed.

The second line in the example shows a write operation.

The third line shows a read operation. A dummy write operation is required to set the sub address (i.e.

Information

16-bit register address, 8-bit data, 7-bit device address

511820003 Datasheet(PDF) 25 Page - OSRAM GmbH