Analog Devices Linear ADI Power LTM4681 Manual page 55

PMBus COMMAND SUMMARY
Table 8. Data Format Abbreviations
L11 Linear_5s_11s PMBus data field b[15:0]
Value = Y • 2
where N = b[15:11] is a 5-bit two's complement integer and Y = b[10:0] is an 11-bit two's complement integer
Example:
For b[15:0] = 0x9807 = 'b10011_000_0000_0111
Value = 7 • 2
From "PMBus Spec Part II: Paragraph 7.1"
L16 Linear_16u PMBus data field b[15:0]
Value = Y • 2
where Y = b[15:0] is an unsigned integer and N = VOUT_MODE_PARAMETER is a 5-bit two's complement exponent that is
hardwired to –12 decimal
Example:
For b[15:0] = 0x9800 = 'b1001_1000_0000_0000
Value = 19456 • 2
Reg Register PMBus data field b[15:0] or b[7:0].
Bit field meaning is defined in detailed PMBus Command Description.
L16 Integer Word PMBus data field b[15:0]
Value = Y
where Y = b[15:0] is a 16-bit unsigned integer
Example:
For b[15:0] = 0x9807 = 'b1001_1000_0000_0111
Value = 38919 (decimal)
CF Custom Format Value is defined in detailed PMBus Command Description.
This is often an unsigned or two's complement integer scaled by an MFR specific constant.
ASC ASCII Format A variable length string of text characters conforming to ISO/IEC 8859-1 standard.
N
–13 –6
= 854 • 10
N
–12
= 4.75 From "PMBus Spec Part II: Paragraph 8.2"
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LTM4681
Rev. A
55