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ICS1892 датащи(PDF) 118 Page - Integrated Circuit Systems |
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ICS1892 датащи(HTML) 118 Page - Integrated Circuit Systems |
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118 / 148 page ![]() ICS1892, Rev. D, 2/26/01 February 26, 2001 118 Chapter 9 Pin Diagram, Listings, and Descriptions ICS1892 Data Sheet © 2000-2001, Integrated Circuit Systems, Inc. All rights reserved. 9.2.5 Reserved Pins Table 9-10 lists the reserved pins. 9.2.6 Ground and Power Pins Table 9-11 lists the ground and power pins. TXEN – 44 No Connect Transmit Enable. For the Link Pulse Interface, this pin is a no connect. For more information, see Table 6-3. TXER LPTX 42 Input Link Pulse (Interface) Transmit Error. This pin’s description is the same as that given in Table 9-6. Table 9-10. Reserved Pins Pin Name Pin Number Pin Type Pin Description NC 12, 13, 14, 15, 20, 26 – No Connect. • These pins are always reserved for use by ICS. • Depending on the interface that is used, other pins can also be no-connects. For pins that are no connects when the interface is the: – 100M Symbol Interface, see Section 9.2.4.2, “MAC/Repeater Interface Pins for 100M Symbol Interface”. – 10M Serial Interface, see Section 9.2.4.3, “MAC/Repeater Interface Pins for 10M Serial Interface”. – Link Pulse Interface, see Section 9.2.4.4, “MAC/Repeater Interface Pins for Link Pulse Interface”. Caution: ‘No-Connect’ pins must not be connected, as connecting them can affect the performance of the ICS1892. Table 9-11. Ground and Power Pins Pin Name Pin Number Pin Type Pin Description VSS 7 Ground Analog Domain VSS 17 Ground Analog Domain VSS 29 Ground Analog Domain VSS 51 Ground Analog Domain VSS 55 Ground Analog Domain VSS 40 Ground Digital Domain VSS 63 Ground Digital Domain VSS 9 Ground Analog Domain VDD 8 Power Analog Domain VDD 16 Power Analog Domain Table 9-9. MAC/Repeater Interface Pins: Link Pulse Interface (Continued) MII Pin Name Link Pluse Pin Name Pin No. Pin Type Pin Description |
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