19-4318; Rev 0; 11/08 MAX14502 Evaluation Kit The MAX14502 evaluation kit (EV kit) provides a proven design to evaluate the MAX14502 Hi-Speed USB-to-SD card reader. The EV kit includes Windows(R) 2000/XPand Windows Vista(R)-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX14502. The MAX14502 EV kit has a built-in USB-to-I2C bridge, allowing a PC to access the internal I2C registers of the MAX14502, as well as providing the power for the EV kit. The MAX14502 EV kit PCB comes with a MAX14502AETL+ installed. The EV kit can also be used to evaluate the MAX14500AETL+, MAX14501AETL+, and MAX14503AETL+ by replacing the MAX14502AETL+, and changing the crystal oscillator frequency according to the device used or by applying an appropriate external clock on the SMA connector. Contact the factory for free samples of the MAX14500AETL+, MAX14501AETL+, and MAX14503AETL+. Windows and Windows Vista are registered trademarks of Microsoft Corp. Features Simple and I2C Control Modes On-Board SD Card Socket, USB Type-A, and USB Type-B Connectors Default 19.2MHz Input Clock, Alternative Input Clock Connector Provided External Microprocessor Connections Provided Windows 2000/XP- and Windows Vista (32-Bit)-Compatible Software On-Board USB-to-I2C Bridge USB Powered (Cable Included) Lead(Pb)-Free and RoHS Compliant Proven PCB Layout Fully Assembled and Tested Ordering Information PART TYPE MAX14502EVKIT+ EV Kit +Denotes lead(Pb)-free and RoHS compliant. Component List DESIGNATION QTY C1-C9, C13, C14, C16-C19, C22, C23, C30 18 1F 10%, 10V X5R ceramic capacitors (0603) Murata GRM188R61A105K C10, C11, C15 3 47F 10%, 10V tantalum capacitors (Size D) KEMET B45197A2476K409 5 4.7F 10%, 10V X5R ceramic capacitors (0805) Murata GRM219R61A475K C12, C26-C29 DESCRIPTION C20, C21, C24, C25 4 18pF 5%, 50V C0G ceramic capacitors (0603) Murata GRM1885C1H180J C31 1 0.01F 10%, 16V X7R ceramic capacitor (0603) Murata GRM188R71C103K 1 0.1F 10%, 16V X7R ceramic capacitor (0603) Murata GRM188R71C104K C32 D1, D2 2 Green LEDs (0603) D3 1 Red LED (0603) D4 1 Yellow LED (0603) DESIGNATION QTY FB1-FB8 8 120 at 100MHz, 200mA ferrite beads (0603) Murata BLM18RK121SN1 J1 1 SD memory card standard connector J2, J6 2 USB type-B right-angle receptacles J3 1 USB type-A right-angle receptacle J4 1 Dual-row (2 x 15) 30-pin header J5 1 SMA PC-mount connector J7 0 Not installed, dual-row (2 x 5) 10-pin header JU1, JU5, JU6, JU9-JU16 11 2-pin headers JU2, JU17, JU18 3 3-pin headers JU3, JU4, JU7, JU8 4 4-pin headers JU19-JU24 0 Not installed, 3-pin headers 2 n-channel low-threshold-voltage FETs (3 SOT23) Q1, Q2 DESCRIPTION ________________________________________________________________ Maxim Integrated Products For information on other Maxim products, visit Maxim's website at www.maxim-ic.com. 1 Evaluates: MAX14502 General Description Evaluates: MAX14502 MAX14502 Evaluation Kit Component List (continued) DESIGNATION QTY DESIGNATION DESCRIPTION R1, R5, R6, R7, R13, R18, R19, R22 8 10k 5% resistors (0603) R2 1 68.1k 1% resistor (0603) R3 1 27.4k 1% resistor (0603) R4 1 6.19k 1% resistor (0603) R8, R14-R17 5 300 5% resistors (0603) R9, R25 2 10.5k 1% resistors (0603) R10, R26 2 6.49k 1% resistors (0603) R11, R12, R27, R28 4 100k 5% resistors (0603) R20, R21 2 3.9k 5% resistors (0603) R23, R24 2 33.2 1% resistors (0603) QTY DESCRIPTION U3 1 Single CMOS switch debouncer (4 SOT143) Maxim MAX6816EUS+ U4 1 USB peripheral controller (24 TQFN-EP*) Maxim MAX3420EETG+ U5 1 Microcontroller (68 QFN-EP*) Maxim MAXQ2000-RAX+ U6 1 2.5V LDO regulator (5 SC70) Maxim MAX8511EXK25+ U8 1 3.0V LDO regulator (5 SC70) Maxim MAX8510EXK30+ U9 1 Dual buffer with Schmitt trigger inputs (6 SC70) VCC, VIO, VIO_U1, VOSC, VSD, VSD_C, VTM 7 Test points, white R29 0 Not installed, resistor (0603) R30-R41 12 0 5% resistors (0603) R42, R43 0 Not installed, resistors (0402) SW1 1 SPDT slide switch SW2 1 Momentary pushbutton switch Y1 1 19.2MHz crystal oscillator 1 12MHz crystal TP1 1 Test point, red Y2 TP2 1 Test point, black Y3 1 20MHz crystal -- 18 Shunts 1 Hi-Speed USB-to-SD card reader (40 TQFN-EP*) Maxim MAX14502AETL+ -- 1 PCB: MAX14502 Evaluation Kit+ 2 200mA adjustable output LDO regulators (6 SOT23) Maxim MAX8880EUT+ U1 U2, U7 *EP = Exposed pad. Component Suppliers SUPPLIER PHONE WEBSITE KEMET Corp. 864-963-6300 www.kemet.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Note: Indicate that you are using the MAX14502 when contacting these component suppliers. MAX14502 EV Kit Files FILE INSTALL.EXE MAX14502.EXE UNINST.INI 2 DESCRIPTION Installs the EV kit files on your computer Application program Uninstalls the EV kit software _______________________________________________________________________________________ MAX14502 Evaluation Kit 5) Insert the SD card into the SD card socket (J1). 6) Before beginning, the following equipment is needed: * MAX14502 EV kit (USB cables included) Connect the USB type-B connector (J6) to one of the PC USB ports. 7) Verify that the D2 green LED and the D4 yellow LED on the EV kit board are lit. * A user-supplied Windows 2000-/XP-/Vista-compatible PC with two spare USB ports 8) Connect the USB mouse to the type-A USB connector (J3). * A user-supplied SD card 9) * A user-supplied USB mouse (or other low-/fullspeed USB device) Connect the USB type-B connector (J2) to another PC USB port. 10) Verify that the PC recognizes the USB mouse. Required Equipment Note: In the following sections, software-related items are identified by bolding. Text in bold refers to items directly from the EV kit software. Text in bold and underlined refers to items from the Windows operating system. Procedure The MAX14502 EV kit is fully assembled and tested. Follow the steps below to verify board operation: 1) Visit www.maxim-ic.com/evkitsoftware to download the latest version of the EV kit software, 14502Rxx.ZIP. Save the EV kit software to a temporary folder and uncompress the ZIP file. 2) Install the EV kit software on your computer by running the INSTALL.EXE program inside the temporary folder. The program files are copied and icons are created in the Windows Start | Programs menu. 3) Verify that all jumpers are in their default positions, as shown in Table 1. 4) Move slider switch SW1 to the on position. 11) Start the MAX14502 EV kit software by opening its icon in the Start | Programs menu. 12) The EV kit software main window appears, as shown in Figure 1. Verify that Hardware: Connected is displayed on the status bar at the bottom of the software main window. 13) In the Bridge Mode group box, select the Pass Thru radio button to set the MAX14502 in pass thru mode. Verify that MAX14502: Simple Control/Pass Thru Mode is displayed on the status bar. 14) In the Bridge Mode group box, select the Card Reader radio button to set the MAX14502 in card reader mode. Verify that MAX14502: Simple Control/Card Reader Mode is displayed on the status bar. 15) Verify that the PC recognizes the SD card. 16) On the EV kit board, verify that the D1 green LED is lit, indicating that the internal microcontroller in the MAX14502 is activated in card reader mode. Figure 1. MAX14502 Software Main Window (Simple Control Mode) _______________________________________________________________________________________ 3 Evaluates: MAX14502 Quick Start Evaluates: MAX14502 MAX14502 Evaluation Kit Figure 2. MAX14502 Software Main Window (Graphical View Tab) 17) Press the Change To I2C Control button to set the MAX14502 in I 2 C control mode. Verify that MAX14502 Connected on Address: 0xE0 is displayed on the status bar. All the I2C register controls are available on the GUI, as shown in Figure 2. 18) Verify that the PC recognizes the USB mouse. 4 Detailed Description of Software The software sets the MAX14502 in either simple or I2C control mode. In simple control mode, the user can set the device in either pass thru or card reader mode. When the EV kit is connected correctly, the software automatically monitors the status of the BERR pin. There are two tabs when the software works in I2C control mode. _______________________________________________________________________________________ MAX14502 Evaluation Kit Software Menu Bar Select File | Exit to exit the application. The Help menu item gives information about this EV kit software. The embedded picture shows the current mode of the device. A command log window displays the read and write operations on the MAX14502. The status register (0x12) bit values are displayed in the Status group box. When the solid circle is green, it indicates a value of 1. When the solid circle is gray, it indicates a value of 0. When the INT pin is asserted, the solid circle beside the INT Pin label turns red. Otherwise, it is gray. When the on-board USB-to-I2C bridge detects the presence of the MAX14502, the solid circle beside the Ready label turns green. If the EV kit is not connected correctly, the circle is gray. Detailed Description of Hardware The MAX14502 operates in pass thru and card reader mode. The device can be controlled in two ways: simple control method and I2C control method. The MAX14502 EV kit board provides a proven layout for evaluating the device. The EV kit comes with one MAX14502AETL+ installed. Power Supplies By default, the EV kit is powered by USB (J6). The different power supplies for the MAX14502 can be applied according to user requirements. See Table 1 for possible power-supply configurations. Press the Query button to read all the register values. Press the Load... button to load the register settings from a text file. Press the Save... button to save the current register settings to a text file. By default, the MAX14502 uses the on-board 19.2MHz crystal oscillator output as the input clock. The user can apply alternative clocks on the SMA connector (J5) and set the shunt of jumper JU2 in the 2-3 position. Press the Reset EVKIT button to reset the EV kit, including the USB re-enumeration on J6. The MAX14502 is reset to its power-on-reset (POR) state. The MAX14502 is reset by pressing and releasing switch SW2. Alternative Input Clock Reset MAX14502 Register View Tab On the Register View tab (Figure 3), detailed names and values of the registers are displayed. Refer to the MAX14500-MAX14503 IC data sheet for the detailed descriptions of all the registers available in I2C control mode. _______________________________________________________________________________________ 5 Evaluates: MAX14502 Graphical View Tab When the Graphical View tab (Figure 2) is selected, a user has access to all of the I2C registers through the on-board USB-to-I2C bridge. Evaluates: MAX14502 MAX14502 Evaluation Kit Figure 3. MAX14502 Software Main Window (Register View Tab) 6 _______________________________________________________________________________________ MAX14502 Evaluation Kit Evaluates: MAX14502 Table 1. MAX14502 EV Kit Jumper Descriptions (JU1-JU18) JUMPER JU1 JU2 JU3 JU4 JU5 JU6 JU7 JU8 JU9 JU10 JU11 JU12 JU13 JU14 JU15 JU16 JU17 SHUNT 1-2* Open CCRD_PRST pin pulled up to VSD by R1 CCRD_PRST pin has no pullup resistor 1-2* Input clock is on-board 19.2MHz crystal oscillator output 2-3 1-2 Input clock is applied on SMA connector EV kit powered by EXT_5V power supply 1-3* EV kit powered by USB power supply on J6 1-4 EV kit powered by USB power supply on J2 1-2 1-3 I2C_SEL pin connected to GND I2C_SEL pin connected to VIO 1-4* I2C_SEL pin controlled by MAXQ2000 GPO pin 1-2* SCL pin connected to the on-board USB-to-I2C bridge Open 1-2* SCL pin disconnected from the on-board USB-to-I2C bridge SDA pin connected to the on-board USB-to-I2C bridge Open SDA pin disconnected from the on-board USB-to-I2C bridge 1-2 ADD pin connected to GND 1-3 1-4* ADD pin connected to VIO ADD pin controlled by MAXQ2000 GPO pin 1-2 MODE pin connected to GND 1-3 MODE pin connected to VIO 1-4* 1-2* MODE pin controlled by MAXQ2000 GPO pin BERR/INT pin connected to MAXQ2000 GPI pin Open 1-2* BERR/INT pin disconnected from MAXQ2000 GPI pin BUSY pin connected to MAXQ2000 GPI pin Open 1-2* BUSY pin disconnected from MAXQ2000 GPI pin RST pin controlled by MAXQ2000 GPO pin Open RST pin disconnected from MAXQ2000 GPO pin 1-2* VCC connected to on-board +3.3V power supply Open 1-2* VCC applied externally on the VCC test point VTM connected to on-board +3.3V power supply Open 1-2* Open 1-2* Open VTM applied externally on the VTM test point On-board crystal oscillator powered by on-board +3V power supply On-board crystal oscillator powered externally on the VOSC test point VSD connected to on-board +3.3V power supply VSD applied externally on the VSD test point 1-2* SD card powered by on-board +3.3V power supply Open 1-2* SD card powered externally on the VSD_C test point VIO connected to on-board +3.3V power supply 2-3 Open JU18 DESCRIPTION VIO connected to MAXQ2000 VDDIO VIO applied externally on the VIO test point 1-2* 2-3 VIO_U1 connected to on-board +3.3V power supply VIO_U1 connected to MAXQ2000 VDDIO Open VIO_U1 applied externally on the VIO_U1 test point *Default position. _______________________________________________________________________________________ 7 Evaluates: MAX14502 MAX14502 Evaluation Kit Figure 4a. MAX14502 EV Kit Schematic (Sheet 1 of 3) 8 _______________________________________________________________________________________ MAX14502 Evaluation Kit Evaluates: MAX14502 Figure 4b. MAX14502 EV Kit Schematic (Sheet 2 of 3) _______________________________________________________________________________________ 9 Evaluates: MAX14502 MAX14502 Evaluation Kit Figure 4c. MAX14502 EV Kit Schematic (Sheet 3 of 3) 10 ______________________________________________________________________________________ MAX14502 Evaluation Kit Evaluates: MAX14502 Figure 5. MAX14502 EV Kit Component Placement Guide--Component Side ______________________________________________________________________________________ 11 Evaluates: MAX14502 MAX14502 Evaluation Kit Figure 6. MAX14502 EV Kit PCB Layout--Component Side 12 ______________________________________________________________________________________ MAX14502 Evaluation Kit Evaluates: MAX14502 Figure 7. MAX14502 EV Kit PCB Layout--Inner Layer 2 ______________________________________________________________________________________ 13 Evaluates: MAX14502 MAX14502 Evaluation Kit Figure 8. MAX14502 EV Kit PCB Layout--Inner Layer 3 14 ______________________________________________________________________________________ MAX14502 Evaluation Kit Evaluates: MAX14502 Figure 9. MAX14502 EV Kit PCB Layout--Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 (c) 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.