MIC3000 Datasheet, PDF (44/68 Pages) Micrel Semiconductor – SFP Management IC

MIC3000
Micrel
ADC Result Registers
Temperature Result MSB (TEMPh)
D[7]
read-only
D[6]
read-only
D[5]
read-only
D[4]
read-only
D[3]
read-only
D[2]
read-only
D[1]
read-only
D[0]
read-only
Default Value
0000 0000_b = 00_h (0°C)⁽¹⁾
Serial Address
A2_h = 1010001_b
Byte Address
96 = 60_h
Each LSB represents one degree centigrade. This register is to be used in conjunction with TEMPl to yield a sixteen-
bit temperature value. The value in this register is uncalibrated. The host should process the results using the scale
factor and offset provided. See the External Calibration section.
Temperature Result LSB (TEMPl)
D[7]
read-only
D[6]
read-only
D[5]
read-only
D[4]
read-only
D[3]
read-only
D[2]
read-only
D[1]
read-only
D[0]
read-only
Default Value
0000 0000_b = 00_h (0°C)
Serial Address
A2_h = 1010001_b
Byte Address
97 = 61_h
This register is to be used in conjunction with TEMPh to yield a sixteen-bit temperature value. The value in this register
is uncalibrated. The host should process the results using the scale factor and offset provided. See the External
Calibration section. In the MIC3000, this register will always return zero. This register is provided for compliance with
SFF-8472. It is not used by the MIC3000 when doing threshold comparisons and setting alarm or warning bits.
Voltage MSB (VINh)
D[7]
read-only
D[6]
read-only
D[5]
read-only
D[4]
read-only
D[3]
read-only
D[2]
read-only
D[1]
read-only
D[0]
read-only
Default Value
0000 0000_b = 00_h (0V)⁽²⁾
Serial Address
A2_h = 1010001_b
Byte Address
98 = 62_h
Each LSB represents 25.6mV. This register is to be used in conjunction with VINl to yield a sixteen-bit value. The
values in VINh:VlNl are in an unsigned binary format. The value in this register is uncalibrated. The host should
process the results using the scale factor and offset provided. See the External Calibration section.
Voltage LSB (VINl)
D[7]
read-only
D[6]
read-only
D[5]
read-only
D[4]
read-only
D[3]
read-only
D[2]
read-only
D[1]
read-only
D[0]
read-only
Default Value
0000 0000_b = 00_h (0V)
Serial Address
A2_h = 1010001_b
Byte Address
99 = 63_h
Each LSB represents 100µV. This register is to be used in conjunction with VINh to yield a sixteen-bit value. The
values in VINh:VINl are in an unsigned binary format. The value in this register is uncalibrated. The host should
process the results using the scale factor and offset provided. See the External Calibration section. In the MIC3000,
this register will always return zero. This register is provided for compliance with SFF-8472. It is not used by the
MIC3000 when doing threshold comparisons and setting alarm or warning bits.
Notes:
1. TEMPh will contain measured temperature data after the completion of one conversion.
2. VINh will contain measured data after one A/D conversion cycle.
M9999-101204
44
October 2004