AddressAndLengthFormatIdentifier

Definition for: AddressAndLengthFormatIdentifier

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AddressAndLengthFormatIdentifier

The services $23 (readMemoryByAddress) and $3D (writeMemoryByAddress) have a parameter addressAndLengthFormatIdentifier. The 1-byte addressAndLengthFormatIdentifier parameter consists of two separately encoded nibbles. The first nibble (length of size) indicates the number of bytes of the Memory Size parameter. The second nibble (length of address) indicates the number of bytes of the Memory Address parameter.

Source Christoph Marscholik and Peter Subke (2008) - Road vehicles, Diagnostic communication - automotive.softing.com