AMD 8151 specifications Table of Contents

24888 Rev 3.03 - July 12, 2004AMD-8151TMAGP Tunnel Data Sheet

Table of Contents

1	Overview . . .		. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	1
	1.1	Device Features		1
2	Ordering Information			6
3	Signal Descriptions			6
	3.1	Terminology		6
	3.2	Tunnel Link Signals		7
	3.3	AGP Signals		8
	3.4	Test and Miscellaneous Signals		10
	3.5	Power and Ground		10
		3.5.1	Power Plane Sequencing	10
4	Functional Operation			11
	4.1	Overview		11
	4.2	Reset And Initialization		11
	4.3	Clocking		11
		4.3.1	Clock Gating	11
	4.4	Tunnel Links		12
		4.4.1	Link PHY	12
	4.5	AGP. . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	12
		4.5.1 Tags, UnitIDs, And Ordering		12
		4.5.2	Various Behaviors	13
		4.5.2.1 AGP Compensation And Calibration Cycles		13
5	Registers. . . .		. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	14
	5.1	Register Overview		14
		5.1.1	Configuration Space	14
		5.1.2 Register Naming and Description Conventions		14
	5.2	AGP Device Configuration Registers		15
	5.3	AGP Bridge Configuration Registers		30
6	Electrical Data			34
	6.1	Absolute Ratings		34
	6.2	Operating Ranges		34
	6.3	DC Characteristics		35
	6.4	AC Characteristics		37
7	Ball Designations			39
8	Package Specification			42
9	Test .	. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	43
	9.1	High Impedance Mode		43
	9.2	NAND Tree Mode		43
10	Appendix . . .		. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	45
	10.1	Revision History		45

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