Repeater Mode Timing Parameters, RXC tri-stated a | Intel 82555

Networking Silicon — 82555

RXCLK

	RXD[3:0],				T 9					T 1 0
	RXD[3:0],	Data Invalid				Data Valid					Data Invalid
	RXER,RXDV	Data Invalid				Data Valid					Data Invalid
	RXER,RXDV

Figure 16. MII Receive Timing Parameters

M D C

MDIO (Input)

MDIO (Output)

Data Invalid

T13

Data Invalid

T11 T12

Data Valid

Data Valid

Data Invalid

Data Invalid

Figure 17. MII Timing Parameters: MDC/MDIO

11.4.3Repeater Mode Timing Parameters

	Symbol	Parameter	Conditions	Min	Typ	Max	Units


T14	TRDRV	PORTEN assertion to RXD[3:0],		1.5		2.5	RXC
T14	TRDRV	RXDV, and RXERR (RXC driven)		1.5		2.5	clocks
		PORTEN de-assertion to					RXC
T15	TRTST	RXD[3:0], RXDV, and RXERR		1.5		2.5	RXC
T15	TRTST	RXD[3:0], RXDV, and RXERR		1.5		2.5	clocks
		(RXC tri-stated)a					clocks

a. RXC, RXDV, and RXERR are tri-stated only after they have been driven low (0).

PORTEN

T14

T15

RXD[3:0],

RXER,RXDV,

RXCLK

Signal Driven

Figure 18. PORT Enable Timing

Datasheet

47

Image 51

Intel 82555 manual Repeater Mode Timing Parameters, RXC tri-stated a

Contents

82555 10/100 Mbps LAN Physical Layer Interface Product Features Revision Description Networking Silicon Contents Repeater Mode Introduction Functional OverviewCompliance to Industry Standards Networking Silicon Architectural Overview 100 Mbps Mode MII TX Interface 10 Mbps Mode Media Independent Interface MII Transmit Error From RIC Repeater mode onlyYes Pin Numbers and Labels Pin Definitions Pin Types Clock PinsTwisted Pair Ethernet TPE Pins Media Independent Interface MII Pins Media Access Control/Repeater Interface Control Pins External Bias Pins LED Pins Miscellaneous Control Pins Power and Ground Pins VCCVSS 100BASE-TX Transmit Blocks 100BASE-TX Adapter Mode OperationSymbol 5B Symbol Code 4B Nibble Code 100BASE-TX Transmit Clock Generation Invalid 2 100BASE-TX Scrambler and MLT-3 Encoder 3 100BASE-TX Transmit Framing NRZ to MLT-3 Encoding Diagram 100BASE-TX Receive Blocks Transmit DriverVendor Model/Type 100BASE-TX Collision Detection Auto-Negotiation 100BASE-TX Link Integrity and Auto-Negotiation SolutionCombination Tx/T4 Auto-Negotiation Solution Link Integrity Auto 10/100 Mbps Speed Selection Adapter Mode Addresses Networking Silicon Datasheet 10BASE-T Receive Blocks 10BASE-T Functionality in Adapter Mode10BASE-T Transmit Clock Generation 10BASE-T Transmit Blocks 10BASE-T Jabber Control Function 3 10BASE-T Error Detection and Reporting10BASE-T Collision Detection 10BASE-T Link Integrity 10BASE-T Full Duplex Networking Silicon Datasheet Repeater Mode Special Repeater FeaturesConnectivity Clock Signal Example MDI Frame Structure Management Data Interface Transition Bits Name Description DefaultMDI Registers MDI Registers 0 10BASE-T Register 1 Status Register Bit Definitions Register 2 82555 Identifier Register Bit Definitions MDI Registers 16 MDI Registers 8 100BASE-TX Register 17 82555 Special Control Bit Definitions 150 Actled Liled Register 22 Receive Symbol Error Counter Bit Definitions Priority Technology Bit Setting TechnologyAuto-Negotiation Functionality Description Priority Parallel Detect and Auto-Negotiation Auto-Negotiation and Parallel Detect Networking Silicon Datasheet LED Descriptions Networking Silicon Datasheet Scrambler Bypass Reset and Miscellaneous Test ModesReset Loopback Number Code Test Instruction Select Input to Tout Test Instruction Coding General Operating Conditions Electrical Specifications and Timing ParametersDC Characteristics Absolute Maximum Ratings Total supply current 230 Leakage on analog pins 11.3.3 100BASE-TX Voltage/Current DC Characteristics AC Characteristics MII Clock SpecificationsSymbol Parameter Conditions Min Typ Max Units MII Clocks AC Timing MII Timing Parameters RXC tri-stated a Repeater Mode Timing Parameters Squelch Test Timing Parameters Transmit Packet Timing Parameters Receive Packet Timing Parameters Jabber Timing Parameters Auto-Negotiation Fast Link Pulse FLP Timing Parameters 11.4.8 10BASE-T Normal Link Pulse NLP Timing Parameters 11.4.11 X1 Clock Specifications Reset Timing Parameters X1 Clock Specifications 11.4.12 100BASE-TX Transmitter AC Specification 12.0 82555 Package Information Symbol Description Min Norm Max 10.0