iHP Manual 173 | P a g e
Data Format Linear is one of the PMBUS Data Format used in iHP units. Please refer to
Appendix B.1, B.2, and B.3 for the PMBUS Commands that uses Linear Data Format.
The Linear Data Format is a two byte value with:
o An 11bit, two’s complement mantissa.
o An 5bit, two’s complement exponent (scaling factor)
The format of the two data bytes is illustrated below
The relationship between Y, N, and the “real word” value is:
X= Y * 2
N
Where:
X is the “real word” value
Y is an 11bit, two’s complement integer
N is a 5 bit, two’s complement integer
Example:
Module PMBUS Command 8Dh
Data return: EAC0h
High Byte: EAh = 1110 1010b
Low Byte: C0h = 1100 0000b
To Next Page