MIC3000 Datasheet, PDF (40/68 Pages) Micrel Semiconductor – SFP Management IC

MIC3000
Micrel
Bias Current High Warning Threshold MSB (IHIGHh)
D[7]
read/write
D[6]
read/write
D[5]
read/write
D[4]
read/write
D[3]
read/write
D[2]
read/write
D[1]
read/write
D[0]
read/write
Default Value
0000 0000_b = 00_h (0mA)
Serial Address
A2_h = 1010001_b
Byte Address
20= 14_h
This register is to be used in conjunction with IHIGHl to yield a sixteen-bit value. The value in this register is
uncalibrated. The value in IHIGHh is compared against ILDh. Warning bit Wx is set if ILDh > IHIGHh.
Bias Current High Warning Threshold LSB (IHIGHl)
D[7]
read/write
D[6]
read/write
D[5]
read/write
D[4]
read/write
D[3]
read/write
D[2]
read/write
D[1]
read/write
D[0]
read/write
Default Value
0000 0000_b = 00_h (0mA)
Serial Address
A2_h = 1010001_b
Byte Address
21= 15_h
Each LSB represents 2µA. This register is to be used in conjunction with IHIGHh to yield a sixteen-bit value. The value
in this register is uncalibrated. The value in IHIGHh is compared against ILDh. Warning bit Wx is set if ILDh > IHIGHh.
Since ILDl is always zero, it is recommended that this register always be programmed to 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.
Bias Current Low Warning Threshold MSB (ILOWh)
D[7]
read/write
D[6]
read/write
D[5]
read/write
D[4]
read/write
D[3]
read/write
D[2]
read/write
D[1]
read/write
D[0]
read/write
Default Value
0000 0000_b = 00_h (0mA)
Serial Address
A2_h = 1010001_b
Byte Address
22= 16_h
This register is to be used in conjunction with ILOWl to yield a sixteen-bit value. The value in this register is
uncalibrated. The value in ILOWh is compared against ILDh. Warning bit Wx is set if ILDh < ILOWh.
Bias Current Low Warning Threshold LSB (ILOWl)
D[7]
read/write
D[6]
read/write
D[5]
read/write
D[4]
read/write
D[3]
read/write
D[2]
read/write
D[1]
read/write
D[0]
read/write
Default Value
0000 0000_b = 00_h (0mA)
Serial Address
A2_h = 1010001_b
Byte Address
23= 17_h
Each LSB represents 2µA. This register is to be used in conjunction with ILOWh to yield a sixteen-bit value. The value
in this register is uncalibrated. The value in ILOWh is compared against ILDh. Warning bit Wx is set if ILDh < ILOWh.
Since ILDl is always zero, it is recommended that this register always be programmed to 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.
M9999-101204
40
October 2004