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DM9302 датащи(PDF) 47 Page - Davicom Semiconductor, Inc. |
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DM9302 датащи(HTML) 47 Page - Davicom Semiconductor, Inc. |
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47 / 64 page ![]() DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus Preliminary datasheet 47 DM9302-15-DS-P01 July 30, 2009 8.13 DAVICOM Specified Receive Error Counter Register (RECR) – 16H Bit Bit Name Default Description 15-0 Rcv_ Err_ Cnt 0, RO Receive Error Counter Receive error counter that increments upon detection of RXER. Clean by reading this register. 8.14 DAVICOM Specified Disconnect Counter Register (DISCR) – 17H Bit Bit Name Default Description 15-8 Reserved 0, RO Reserved 7-0 Disconnect Counter 0, RO Disconnect Counter that increment upon detection of disconnection. Clean by reading this register. 8.15 Power Saving Control Register (PSCR) – 1DH Bit Bit Name Default Description 15-12 RESERVED 0,RO RESERVED 11 PREAMBLEX 0,RW Preamble Saving Control when both bit 10 and 11 of register 14H are set, the 10BASE-T transmit preamble count is reduced. 1: 12-bit preamble is reduced. 0: 22-bit preamble is reduced. 10 AMPLITUDE 0,RW Transmit Amplitude Control Disabled 1: when cable is unconnected with link partner, the TX amplitude is reduced for power saving. 0: disable Transmit amplitude reduce function 9 TX_PWR 0.RW Transmit Power Saving Control Disabled 1: when cable is unconnected with link partner, the driving current of transmit is reduced for power saving. 0: disable transmit driving power saving function 8-0 RESERVED 0,RO RESERVED |
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