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The sensor readings returned are in their "raw" values; to convert them to actual values use the
following formulas below.
a. For 3.3 V sensors
b. For 5 V sensors
c. For Temp sensors
B.1.13 FRU Inventory Area Info
This command is used to obtain information about the size and access method of the FRU Inventory
data in the device.
Table B-12 NetFn 0x0A, Cmd 0x10
60 VMICPCI-7055/CPCI-7055RC Hardware Reference Manual
V
= (V
/ 256) * (3.3 / 2.5) * 3.3
a
r
Where V
= actual voltage
a
V
= "raw" sensor reading
r
e.g.: if sensor 0x41 says 0xC0 (192 decimal), the actual voltage is
(192/256) * 3.3/2.5 * 3.3 = 3.267 V.
V
= (V
/ 256) * 3.3 * 2
a
r
Where V
= actual voltage
a
V
= "raw" sensor reading
r
e.g.: if sensor 0x44 says 0xC3 (195 decimal), the actual voltage is
(195/256) * 3.3 * 2 = 5.027 V.
T
= T
a
r
Where T
= actual temperature in
a
T
= "raw" sensor reading
r
e.g.: if sensor 0x61 says 0x1f (31 decimal), the actual temperature is 31
Byte
Request-
1
data
Response-
1
data
2
3
4
o
C
Value
Data Field
XXh
FRU device ID. FFh
reserved.
00h
Completion code
XXh
FRU inventory area size
in bytes, LS Byte.
XXh
FRU inventory area size
in bytes, MS Byte.
XXh
[7:1] – reserved
[0] – 0b = accessed by
bytes
1b = accessed by
words
o
C.
Comments
Publication No. 500-657055-000 Rev. G
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