MOSA

MS6283

Volume Controller with soft step IC

V1.1

8/18

www.mosanalog.com

BUS INTERFACE

Data are transmitted to and from the MCU to the MS6283 via the SDA and SCL. The SDA and SCL make up the

BUS interface. It should be noted that pull-up resistors must be connected to the positive supply voltage.

SDA (Serial Data Line)

Rp

Rp

SCL (Serial Clock Line)

Pull up resistors

MCU

MS6283

Interface protocol

The format consists of the following

•A START condition

•A chip address byte including the MS6283 address. (7bits)

•The 8

•The MS6283 must always acknowledge the end of each transmitted byte.

•A data sequence (N-bytes + Acknowledge)

•A STOP condition

Chip Address

The chip address of the MS6283 is 88H.