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MIC3000 데이터시트(PDF) 37 Page - Micrel Semiconductor |
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MIC3000 데이터시트(HTML) 37 Page - Micrel Semiconductor |
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37 / 68 page ![]() October 2004 37 M9999-101204 MIC3000 Micrel RX Optical Power High Alarm Threshold MSB (RXMAXh) D[7] D[6] D[5] D[4] D[3] D[2] D[1] D[0] read/write read/write read/write read/write read/write read/write read/write read/write Default Value 0000 0000b = 00h (0mW) Serial Address A2h = 1010001b Byte Address 32 = 20h Each LSB represents 25.6 µW. This register is to be used in conjunction with RXMAXl to yield a sixteen-bit value. The value in this register is uncalibrated. The value in RXMAXh is compared against RXOPh. Alarm bit Ax is set if RXOPh > RXMAXh. RX Optical Power High Alarm Threshold LSB (RXMAXl) D[7] D[6] D[5] D[4] D[3] D[2] D[1] D[0] read/write read/write read/write read/write read/write read/write read/write read/write Default Value 0000 0000b = 00h (0mW) Serial Address A2h = 1010001b Byte Address 33 = 21h Each LSB represents 0.1 µW. This register is to be used in conjunction with RXMAXh to yield a sixteen-bit value. The values in RXMAXh:RXMAXl are in an unsigned binary format. The value in this register is uncalibrated. The value in RXMAXh is compared against RXOPh. Alarm bit Ax is set if RXOPh > RXMAXh. Since RXOPl 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. RX Optical Power Low Alarm Threshold MSB (RMINh) D[7] D[6] D[5] D[4] D[3] D[2] D[1] D[0] read/write read/write read/write read/write read/write read/write read/write read/write Default Value 0000 0000b = 00h (0mW) Serial Address A2h = 1010001b Byte Address 34 = 22h Each LSB represents 25.6 µW. This register is to be used in conjunction with RXMINl to yield a sixteen-bit value. The value in this register is uncalibrated. The value in RXMINh is compared against RXOPh. Alarm bit Ax is set if RXOPh < RXMINh. RX Optical Power Low Alarm Threshold LSB (RMINl) D[7] D[6] D[5] D[4] D[3] D[2] D[1] D[0] read/write read/write read/write read/write read/write read/write read/write read/write Default Value 0000 0000b = 00h (0mW) Serial Address A2h = 1010001b Byte Address 35 = 23h Each LSB represents 0.1 µW. This register is to be used in conjunction with RXMINh to yield a sixteen-bit value. The values in RXMINh:RXMINl are in an unsigned binary format. The value in this register is uncalibrated. The value in RXMINh is compared against RXOPh. Alarm bit Ax is set if RXOPh < RXMINh. Since RXOPl 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. |
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