SFH 5712

2010-03-31

13

subsequent read to the upper byte register. The upper register will contain the correct value even if ad-

ditional integration cycles end between the reading of the lower and upper registers.

Example:

LSB data and MSB data neet to be combined to a 16bit word as follows:

LSB data = 0xF0 (1111 0000)

MSB data = 0x83 (1000 0011)

-> in hex: out = 83F0 = 33776 counts

-> in binary: out= 1000 0011 combined with 1111 0000: 1000 0011 1111 0000 = 33776 counts

I2C bus address

7 bit sensor address

binary: 0101001 / hex: 29

If the I²C bus master sends a not specified register address (e.g. Eh see table 1), the device (slave) will

not send ACKNOWLEDGE and go to an idle mode and wait for another command.