Intel 31244 PCI-X manual Contents

			Intel® 31244 PCI-X to Serial ATA Controller
				Contents
Contents
1	About This Document			9
	1.1	Reference Documentation		9
	1.2	Terminology and Definitions		9
2	Overview			13
	2.1	Features		13
	2.2	Applications		15
3	Intel® 31244 PCI-X to Serial ATA Controller Package			17
	3.1	Signal Pin Descriptions		18
		3.1.1 VA0, VA1 (VCCPLL) Pin Requirements		21
	3.2	Package/Marking Information		22
	3.3	Ball Map By Function		23
4	Routing Guidelines			25
	4.1	General Routing Guidelines		25
	4.2	Crosstalk		26
	4.3	EMI Considerations		27
	4.4	Power Distribution and Decoupling		28
		4.4.1	Decoupling	28
			4.4.1.1 Intel® 31244 PCI-X to Serial ATA Controller Decoupling	28
	4.5	Trace Impedance		29
		4.5.1	Differential Impedance	29
5	Intel® 31244 PCI-X to Serial ATA Controller Interface Ports			31
	5.1	Serial ROM Interface		31
	5.2	JTAG Interface		31
	5.3	PCI-X Interface		32
	5.4	Serial ATA Interface		33
		5.4.1	Direct Port Access (DPA)	33
		5.4.2	Extended Voltage Mode	33
		5.4.3	LED Interface	34
		5.4.4	Reference Clock Generation	35
6	Printed Circuit Board (PCB) Methodology			37

6.1Intel® 31244 PCI-X to Serial ATA Controller

		Normal Mode (standard SATA driver)		38
		6.1.1 Intel® 31244 PCI-X to Serial ATA Controller HBA Stackup		39
	6.2	Extended Voltage Mode		39
		6.2.1	Backplane Topologies	40
		6.2.2 Motherboard Stackup for Backplane Designs		42
		6.2.3	Backplane Stripline Stackup	44
		6.2.4 Cable Interconnect With Backplane		45
7	PCI-X Layout Guidelines			47
	7.1	PCI Voltage Levels		47
	7.2	PCI/X Clocking Modes		48

Design Guide 3