phyCORE-LPC3250 System on Module and Carrier Board Hardware Manual Document No: L-714e_1 Product No: PCM-040 SOM PCB No: 1304.1 CB PCB No: 1305.2, 1305.3 Edition: January 27, 2009 A product of a PHYTEC Technology Holding Company Table of Contents L-714e_1 Table of Contents List of Tables . .iii List of Figures . v Conventions, Abbreviations and Acronyms. .vi Preface . .viii Part I: PCM-040/phyCORE-LPC3250 System on Module . 1 1 Introduction . 2 1.1 Block Diagram . 4 1.2 View of the phyCORE-LPC3250 . 5 2 Pin Description . 7 3 Jumpers . 19 4 Power . 24 4.1 Primary System Power (VCC) . 24 4.2 Secondary Battery Power (VBAT) . 24 4.3 Analog-to-Digital Converter Power (VCC_AD_EXT) . 24 4.4 SDIO Controller Power (VCC_SDIO) . 25 4.5 On-board Voltage Regulators . 25 4.5.1 Primary 1.2V and 1.8V Supplies (U23) . 26 4.5.2 Adjustable Core Voltage Supply (U27) . 27 4.5.3 SDRAM and RTC Supplies (U22) . 27 4.5.4 Selecting Shunt Resistors for Current Measurements. 27 4.6 Voltage Supervisor (U16, U17) . 28 5 Deep Sleep . 30 6 External RTC (U26). 32 7 External Watchdog . 33 8 System Configuration and Booting . 34 8.1 Boot Process and Boot Modes . 34 8.1 Stage 1 Loader . 37 9 System Memory . 39 9.1 SDRAM (U10, U11) . 39 9.2 NAND Flash (U8). 39 9.3 NOR Flash (U12, U13) . 40 9.4 NOR vs. NAND . 40 9.5 EEPROM (U9) . 40 9.6 Memory Map . 42 10 Serial Interfaces . 43 10.1 RS-232 Transceiver (U25). 43 10.2 Ethernet PHY (U6). 43 10.2.1 Configuring the PHY Operating Mode (J7, J8, J9) . 44 10.3 USB OTG Transceiver (U24). 45 11 SDIO Controller (U14). 47 12 Debug Interface (X1). 49 13 Bus Buffers (U1, U2, U3, U4, U5) . 50 13.1 Buffered Memory Bus Voltage Select (J21) . 51 14 Technical Specifications . 52 15 Hints for Handling the phyCORE-LPC3250 . 54 16 Component Placement Diagrams . 55 © PHYTEC America LLC 2009 i Table of Contents L-714e_1 Part II: PCM-967/phyCORE-LPC3250 Carrier Board. 57 17 Introduction . 58 18 Overview of Peripherals . 59 19 Jumpers . 61 20 phyCORE-LPC3250 SOM Connectivity . 65 21 Power . 66 21.1 Wall Adapter Input . 68 21.2 Power over Ethernet (PoE) . 69 21.3 Lithium-Ion Battery . 69 21.3.1 Battery Charging Circuit . 70 21.4 3.15V Supply (U9) . 70 21.5 1.8V Supply (U10) . 71 21.6 5.0V Buck-Boost Supply (U21) . 71 21.7 Power Path Controller . 71 21.8 Current Measurement . 71 22 JTAG Connectivity . ..