Intel IXP43X manual Tables, Pad-to-Pad Clearance of Passive Components to a PGA or BGA

Hardware Design Guidelines—Intel®IXP43X Product Line of Network Processors

11	HSS Interface Example	42
12	Serial Flash and SSP Port (SPI) Interface Example	44
13	PCI Interface	47
14	Clock Oscillator Interface Example	51
15	Recommended circuit design on PCB for crystal oscillator	52
16	Component Placement on a PCB	56
17	8-Layer Stackup	58
18	6-Layer Stackup	58
19	Signal Changing Reference Planes	60
20	Good Design Practice for VIA Hole Placement	61
21	Poor Design Practice for VIA Placement	61
22	Pad-to-Pad Clearance of Passive Components to a PGA or BGA	62
23	PCI Address/Data Topology	67
24	PCI Clock Topology	68
25	Processor-DDRII/I SDRAM Interface	72
26	DDRII/DDRI RCOMP Pin External Resistor Requirements	74
27	DDRII OCD Pin Requirements	75
28	DDR Clock Timing Waveform	75
29	DDR SDRAM Write Timings	76
30	DDR SDRAM Read Timings	76
31	DDR - Write Preamble/Postamble Duration	77
32	DDRII Clock Simulation Results: CK Signals	82
33	DDRII Data and Control Simulation Results: DQ and DQS signals	83
34	DDRII Command Simulation Results: ADDRESS signals	84
Tables
1	List of Acronyms and Abbreviations	10
2	Signal Type Definitions	17
3	Soft Fusible Features	17
4	DDRII/I SDRAM Interface Pin Description	19
5	Expansion Bus Signal Recommendations	21
6	Boot/Reset Strapping Configuration	22
7	Setting Intel XScale® Processor Operation Speed	24
8	UART Signal Recommendations	27
9	MII NPE A Signal Recommendations	29
10	MII NPE C Signal Recommendations	29
11	MAC Management Signal Recommendations NPE A and NPE C	30
12	GPIO Signal Recommendations	32
13	USB Host Signal Recommendations	33
14	UTOPIA Level 2/MII_A	36
15	High-Speed, Serial Interface 0	41
16	Synchronous Serial Peripheral Port Interface	43
17	PCI Controller	45
18	PCI Host/Option Interface Pin Description	47
19	Synchronous Serial Peripheral Port Interface	50
20	Clock Signals	50
21	Power Supply	52
22	PCI Address/Data Routing Guidelines	67
23	PCI Clock Routing Guidelines	68
24	DDRII/I Signal Groups	71
25	Supported DDRI 32-bit SDRAM Configurations	73
26	Supported DDRII 32-bit SDRAM Configurations	73
27	Supported DDRI 16-bit SDRAM Configurations	73
28	Supported DDRII 16-bit SDRAM Configurations	74
	Intel® IXP43X Product Line of Network Processors
April 2007		HDG
Document Number: 316844; Revision: 001US		5