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MIC3003 数据表(PDF) 45 Page - Micrel Semiconductor |
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MIC3003 数据表(HTML) 45 Page - Micrel Semiconductor |
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45 / 75 page  Micrel, Inc. MIC3003 November 2009 45 M9999-111209-C hbwhelp@micrel.com or (408) 955-1690 RX Optical Power High Warning Threshold 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 for both bytes 0000 0000b = 00h (0 mW) Serial address A2h Byte addresses MS byte (RXHIGHh): 36 = 24h LS byte (RXHIGHl): 37 = 25h Each LS bit of RXHIGHh represents 25.6 μW, and each LS bit of RXHIGHl represents 0.1 μW. The sixteen-bit threshold value (RXHIGHh:RXHIGHl) is compared to the sixteen-bit value of the RX power result (RXOPh:RXOPl). WARN1 bit 7 is set if Result > Threshold. RX Optical Power Low Warning Threshold 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 for both bytes 0000 0000b = 00h (0 mW) Serial address A2h Byte addresses MS byte (RXLOWh): 38 = 26h LS byte (RXLOWl): 39 = 27h Each LSB of RXLOWh represents 25.6 μW, and each LS bit of RXLOWl represents 0.1 μW. The sixteen-bit threshold value (RXLOWh:RXLOWl) is compared to the sixteen-bit value of the RX power result (RXOPh:RXOPl). WARN1 bit 6 is set if Result < Threshold. Checksum (CHKSUM) Checksum of bytes 0 - 94 at serial address A2h 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 0000b = 00h Serial address A2h Byte address 95 = 5Fh This register is provided for compliance with SFF-8472. It is implemented as general-purpose non-volatile memory. Read/write access is possible whenever a valid OEM password has been entered. CHKSUM is read-only in User Mode. |
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