The AS-Interface bus protocol

Master call Slave response

SB •1 start bit (SB, always "0")•1 control bit (CB) •5 address bits (A0 ... A4) plus SEL bit for A/B address for expansion to 62 slaves•5 data bits (I0, I1, I2, I4) •1 parity bit (PB)•1 end bit (EB, always "1") CB A4 A3 A2 A1 A0 I4 SEL I2 I1 I0 PB EB I4 = "0" ==> parameter call I4 = "1" ==> data call SB I3 I2 I1 I0 PB EB
Issue date 2004-11-19 - Catalogue AS-Interface 2004/2005

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