Intel PXA250 and PXA210 manual Contents, USB Interface

			Contents
Contents
1	Introduction			1-1
	1.1	Functional Overview		1-1
	1.2	Package Information		1-2
		1.2.1	Package Introduction	1-2
		1.2.2	Signal Pin Descriptions	1-4
2	System Memory Interface			2-1
	2.1	Overview		2-1
	2.2	SDRAM Interface		2-3
	2.3	SDRAM memory wiring diagram		2-3
	2.4	SDRAM Support		2-5
	2.5	SDRAM Address Mapping		2-6
	2.6	Static Memory		2-7
		2.6.1	Overview	2-7
		2.6.2	Boot Time Defaults	2-8
		2.6.3 SRAM / ROM / Flash / Synchronous Fast Flash Memory Options		2-9
		2.6.4 Variable Latency I/O Interface Overview		2-9
		2.6.5 External Logic for PCMCIA Implementation		2-11
		2.6.6 DMA / Companion Chip Interface		2-14
	2.7	System Memory Layout Guidelines		2-17
		2.7.1 System Memory Topologies (Min and Max Simulated Loading)		2-17
		2.7.2 System Memory Recommended Trace Lengths		2-18
3	LCD Display Controller			3-1
	3.1	LCD Display Overview		3-1
	3.2	Passive (DSTN) Displays		3-1
		3.2.1 Typical Connections for Passive Panel Displays		3-2
			3.2.1.1 Passive Monochrome Single Panel Displays	3-2
			3.2.1.2 Passive Monochrome Single Panel Displays, Double-Pixel Data	3-3
			3.2.1.3 Passive Monochrome Dual Panel Displays	3-3
			3.2.1.4 Passive Color Single Panel Displays	3-4
			3.2.1.5 Passive Color Dual Panel Displays	3-4
	3.3	Active (TFT) Displays		3-5
		3.3.1 Typical connections for Active Panel Displays		3-6
	3.4	PXA250 Pinout		3-7
	3.5	Additional Design Considerations		3-8
		3.5.1	Contrast Voltage	3-8
		3.5.2	Backlight Inverter	3-8
		3.5.3 Signal Routing and Buffering		3-8
		3.5.4	Panel Connector	3-9
4	USB Interface		..............................................................................................................................	4-1
	4.1	Self Powered Device		4-1
		4.1.1 Operation if GPIOn and GPIOx are Different Pins		4-1
		4.1.2 Operation if GPIOn and GPIOx are the Same Pin		4-2
	4.2	Bus Powered Device		4-2

PXA250 and PXA210 Applications Processors Design Guide iii