PXA3xx Design Guide - Marvell

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PXA3xx Processor FamilyDesign Guide21.3 Block Diagrams .............................................................................................................................................17121.3.1 Standard SSP Configuration Schema ............................................................................................17121.3.2 External Clock Source Configuration Schema................................................................................17221.3.3 External Clock-Enable Configuration Schema................................................................................17321.3.4 Internal (to PXA3xx Processor Family) Clock Enable Configuration Design ..................................17421.4 Layout Notes .................................................................................................................................................17522 AC ’97 Interface .........................................................................................................................17722.1 Overview .......................................................................................................................................................17722.2 Signals ..........................................................................................................................................................17722.3 Block Diagram...............................................................................................................................................17822.4 AC97_nACRESET Signal .............................................................................................................................17822.5 Layout Notes .................................................................................................................................................17922.6 Routing Recommendations...........................................................................................................................18122.6.1 Topology # 1: SDATA_OUT / SYNC with a Single Load ................................................................18122.6.2 Topology # 2: SDATA_OUT with Two Loads .................................................................................18222.6.3 Topology # 3: SDATA_IN with a Single Load .................................................................................18322.6.4 Topology # 4: AC97_BITCLK with Two Loads ...............................................................................18423 UART Interfaces.........................................................................................................................18523.1 Overview .......................................................................................................................................................18523.2 Signals ..........................................................................................................................................................18523.3 Types of UARTs............................................................................................................................................18623.3.1 Full Function UART ........................................................................................................................18623.3.1.1 Full Function UART Signals .............................................................................................18623.3.1.2 Full Function UART Block Diagram..................................................................................18723.3.1.3 Full Function UART Layout Notes....................................................................................18723.3.2 Bluetooth UART..............................................................................................................................18723.3.2.1 Bluetooth UART Signals...................................................................................................18823.3.2.2 Bluetooth UART Block Diagram .......................................................................................18824 Consumer Infrared Interface ....................................................................................................18924.1 Overview .......................................................................................................................................................18924.2 Signals ..........................................................................................................................................................18924.3 Block Diagram...............................................................................................................................................18924.4 Layout Notes .................................................................................................................................................19025 Pulse-Width Modulator Interface .............................................................................................19125.1 Overview .......................................................................................................................................................19125.2 Signals ..........................................................................................................................................................19125.3 Block Diagram...............................................................................................................................................19125.4 Layout Notes .................................................................................................................................................19226 USIM Controller Interface .........................................................................................................19326.1 Overview .......................................................................................................................................................193Doc. No. MV-S301368-00 Rev. A Copyright © 2009 MarvellPage 8April 6, 2009, Released
26.2 Signals ..........................................................................................................................................................19326.2.1 PXA3xx Processor Family USIM Interface Signals.........................................................................19326.2.2 USIM Card Interface Signals ..........................................................................................................19526.3 Block Diagram...............................................................................................................................................19526.4 Layout Notes .................................................................................................................................................19727 Inter-Integrated Circuit (I2C).....................................................................................................19927.1 Overview .......................................................................................................................................................19927.2 Signals ..........................................................................................................................................................19927.3 Layout Notes .................................................................................................................................................200ADesign Checklist........................................................................................................................201A.1 Schematic Checklist......................................................................................................................................201A.2 Bring-up Checklist .........................................................................................................................................207A.3 PCB Layout Checklist ...................................................................................................................................210A.4 Low Power Considerations Checklist............................................................................................................211Copyright © 2009 MarvellDoc. No. MV-S301368-00 Rev. AApril 6, 2009, Released Page 9
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PXA3xx Design Guide - Marvell

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