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DP83861 Datasheet(PDF) 9 Page - National Semiconductor (TI) |
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DP83861 Datasheet(HTML) 9 Page - National Semiconductor (TI) |
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9 / 88 page  9 www.national.com 1.7 Device Configuration Interface INT I/O, S, PD 208 INTERRUPT: Generates a interrupt upon PHY status changes. The interrupt function is enabled in the extended register set. This pin is not an Open Drain Output and can not be wired OR to other pins. See Section 2.10 1. Each of the Speed LEDs (LED_10, LED_100, LED_1000) is AND’ed with good link LEDs. They will only come on when the PHY has established good link at the speed indicated. Signal Name Type Pin # Description AN_EN TX_TCLK I/O, S, PU 192 AUTO-NEGOTIATION ENABLE: Input to set value of Auto-Negotia- tion Enable bit (register 0 bit-12). ‘1’ Enables Auto-Negotiation ‘0’ Disables Auto-Negotiation TX_TCLK: Output used to measure jitter during Test Mode 3 as de- scribed by IEEE 802.3ab specification. TX_TCLK should not be con- fused with the TX_CLK signal. MANUAL_M/S_Enable I/O, S, PD 195 MANUAL MASTER/SLAVE ENABLE: Input to set value of manual Master/Slave Configuration Enable bit (register 9 bit-12). The DP83861 still goes through the Auto-Negotiation process. ‘1’ Enables manual Master/Slave Configuration ‘0’ Disables manual Master/Slave Configuration Manual M/S Advertise I/O, S, PD 191 Manual MASTER/ SLAVE CONFIGURATION VALUE: Input to set value of Master/Slave Advertise bit (register 9 bit 11). DP83861 still goes through the Auto-Negotiation process. ‘1’ Configures PHY to Master during Master/Slave negotiation ‘0’ Configures PHY to Slave during Master/Slave negotiation. This bit is only used if the Manual_M/S_Configuration is enabled. 1000FDX_ADV I, S, PU 184 AUTO_NEG 1000 FDX ADVERTISE: The value strapped during power/on reset determines the mode of operation advertised during Auto-Negotiation. ‘1’ Advertises 1000 Mb/s Full Duplex capability ‘0’ Does not advertise 1000 Mb/s Full Duplex capability LED_DUPLEX 1000HDX_ADV I/O, S, PD 185 DUPLEX MODE SELECT/ 1000 Mb/s HALF DUPLEX ADVERTISE: This strap option has two functions depending on whether Auto-Ne- gotiation is enabled or not: Auto-Negotiation disabled: ‘1’ straps on Full Duplex mode of operation ‘0’ straps on Half Duplex mode of operation. Auto-Negotiation enabled: ‘1’ Advertises 1000 Mb/s Half Duplex capability ‘0’ Does not advertise 1000 Mb/s Half Duplex capability. 100_ADV I/O, S, PU 181 100 Mb/s FULL/HALF DUPLEX ADVERTISE: This strap option pin determines if 100 Mb/s Full/Half Duplex capability will be advertised during Auto-Negotiation. ‘1’ Advertises both Full and Half Duplex capability ‘0’ Advertises neither 100 Mb/s capability 10_ADV I/O, S, PD 180 10 Mb/s FULL/HALF DUPLEX ADVERTISE: This strap option pin determines if 10 Mb/s Full/Half Duplex capability will be advertised during Auto-Negotiation. ‘1’ Advertises both Full and Half Duplex capability ‘0’ Advertises neither 10 Mb/s capability |
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