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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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DM9302 датащи(PDF) 45 Page - Davicom Semiconductor, Inc. |
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DM9302 датащи(HTML) 45 Page - Davicom Semiconductor, Inc. |
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45 / 64 page  DM9302 10/100Mbps Ethernet Fiber/Twisted Pair Media Converter with Local bus Preliminary datasheet 45 DM9302-15-DS-P01 July 30, 2009 8.10 10BASE-T Configuration/Status (10BTCSR) – 12H Bit Bit Name Default Description 15 Reserved 0, RO Reserved Read as 0, ignore on write 14 LP_EN 1, RW Link Pulse Enable 1 = Transmission of link pulses enabled 0 = Link pulses disabled, good link condition forced This bit is valid only in 10Mbps operation 13 HBE 1,RW Heartbeat Enable 1 = Heartbeat function enabled 0 = Heartbeat function disabled When the DM9302 is configured for full duplex operation, this bit will be ignored (the collision/heartbeat function is invalid in full duplex mode) 12 SQUELCH 1, RW Squelch Enable 1 = Normal squelch 0 = Low squelch 11 JABEN 1, RW Jabber Enable Enables or disables the Jabber function when the DM9302 is in 10BASE-T full duplex or 10BASE-T transceiver Loopback mode 1 = Jabber function enabled 0 = Jabber function disabled 10 SERIAL 0, RW 10M Serial Mode (valid in PHY test mode) Force to 0, in application. 9-1 Reserved 0, RO Reserved Read as 0, ignore on write 0 POLR 0, RO Polarity Reversed When this bit is set to 1, it indicates that the 10Mbps cable polarity is reversed. This bit is automatically set and cleared by 10BASE-T module 8.11 Power Down Control Register (PWDOR) – 13H Bit Bit Name Default Description 15-9 Reserved 0, RO Reserved Read as 0, ignore on write 8 PD10DRV 0, RW Vendor power down control test 7 PD100DL 0, RW Vendor power down control test 6 PDchip 0, RW Vendor power down control test 5 PDcrm 0, RW Vendor power down control test 4 PDaeq 0, RW Vendor power down control test 3 PDdrv 0, RW Vendor power down control test 2 PDedi 0, RW Vendor power down control test 1 PDedo 0, RW Vendor power down control test 0 PD10 0, RW Vendor power down control test * When selected, the power down value is control by Register 20.0 |
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