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AMD 8151 specifications AC data for clocks, Rev 3.03 - July, 6.4AC Characteristics

Models: 8151

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6.4AC Characteristics

24888 Rev 3.03 - July 12, 2004

AMD-8151TMAGP Tunnel Data Sheet

6.4AC Characteristics

See the HyperTransport Technology Electrical Specification for the AC characteristics of link signals. The following table shows AC specification data for clocks.

Symbol	Parameter Description	Min	Max	Units	Comments

tREF	REFCLK cycle time	15	18	ns
tCYC	A_PCLK cycle time	15		ns	Matches REFCLK
tHIGH	A_PCLK high time	6		ns
tLOW	A_PCLK low time	6		ns
tSLEW	A_PCLK slew rate	1	4	V/ns

Table 12: AC data for clocks.

The following table shows AC specification data for common clock (A_PCLK) operation of AGP signals.

Symbol	Parameter Description	Min	Max	Units	Notes

tVAL	A_PCLK to signal valid delay	1	5.5	ns
tON	A_PCLK to signal float-to-active delay	1	6	ns
tOFF	A_PCLK to signal active-to-float delay	1	14	ns
tSU	Signal input setup time to A_PCLK	6		ns
tH	AGP signal input hold time after A_PCLK	0		ns
tRF	Signal output rise and fall slew rate	2	3.5	V/ns

Table 13: AC data for common clock operation of AGP signals.

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AMD 8151 specifications AC data for clocks, Rev 3.03 - July, 6.4AC Characteristics

Contents

Figure 1 System block diagram Data Sheet1.1Device Features 24888 Rev 3.03 - July2004 Advanced Micro Devices, Inc 24888 Rev 3.03 - JulyTable of Contents AMD-8151TM AGP Tunnel Data Sheet List of FiguresFigure 1 System block diagram Configuration spaceList of Tables AMD-8151BL C 3Signal Descriptions 3.1Terminology24888 Rev 3.03 - July 2Ordering Information24888 Rev 3.03 - July 3.2Tunnel Link SignalsAMD-8151TM AGP Tunnel Data Sheet 3.3AGP Signals24888 Rev 3.03 - July 24888 Rev 3.03 - July AMD-8151TM AGP Tunnel Data Sheet3.5 Power and Ground 3.4 Test and Miscellaneous Signals3.5.1Power Plane Sequencing 24888 Rev 3.03 - July 4.2Reset And Initialization4Functional Operation 4.1Overview 4.3Clocking4.4Tunnel Links 24888 Rev 3.03 - July4.4.1Link PHY 4.5AGPAGP transaction 24888 Rev 3.03 - JulyLink transaction 4.5.2Various Behaviors5.1.1Configuration Space Figure 2 Configuration space24888 Rev 3.03 - July 5Registers 5.1Register Overview5.2AGP Device Configuration Registers Table 3 Configuration spacesTable 4 Memory mapped address spaces Table 5 Register attributesDevA AGP Device Status And Command RegisterBits DescriptionDevA 24888 Rev 3.03 - JulyBits DescriptionAGP Miscellaneous Control Register AMD-8151TM AGP Tunnel Data SheetDevA BitsAGP PHY Control Register 24888 Rev 3.03 - JulyDevA DescriptionDevA AGP PHY Skew Control RegisterBits DescriptionAGP Most Recent Request Register 24888 Rev 3.03 - JulyDevA Bits24888 Rev 3.03 - July AGP Command RegisterBits DescriptionBits AGP Control RegisterDescription AGP Aperture Size RegisterBits Link Command RegisterDescription GARTHI GART base address register high24888 Rev 3.03 - July Link Configuration And Control RegisterBits Description24888 Rev 3.03 - July Link Frequency Capability 0 Register 24888 Rev 3.03 - JulyDevA 0xCC BitsLink PHY Compensation Control Registers 24888 Rev 3.03 - JulyDevA 0xE8, E4, E0 BitsBits Description Clock Control RegisterAGP Bridge Status And Command Register 5.3AGP Bridge Configuration Registers24888 Rev 3.03 - July AGP Bridge Vendor And Device ID RegisterBits DevBDescription AGP Bridge Memory Base-LimitRegistersBits 24888 Rev 3.03 - JulyDescription BitsBits AMD-8151TM AGP Tunnel Data SheetDescription BitsTable 7 Operating ranges Table 6 Absolute maximum ratings24888 Rev 3.03 - July 6Electrical Data 6.1Absolute Ratings6.3DC Characteristics Table 8 Current and power consumption24888 Rev 3.03 - July Input low voltage Table 12 AC data for clocks 6.4AC Characteristics24888 Rev 3.03 - July 24888 Rev 3.03 - July AMD-8151TM AGP Tunnel Data SheetA PCLK to transmit strobe first strobe edge Figure 3 Ball designations AMD-8151TM AGP Tunnel Data Sheet24888 Rev 3.03 - July 7Ball DesignationsSignal name AMD-8151TM AGP Tunnel Data SheetSignal name Signal nameSignal AMD-8151TM AGP Tunnel Data SheetSignal SignalAMD-8151TM AGP Tunnel Data Sheet 8Package SpecificationFigure 4 Package mechanical drawing 24888 Rev 3.03 - July9Test 24888 Rev 3.03 - JulyMode TESTAMD-8151TM AGP Tunnel Data Sheet NAND tree 2 output signal is STRAPL424888 Rev 3.03 - July 10 Appendix 10.1 Revision History Revision 24888 Rev 3.03 - JulyRevision