DP83848YB-EVK

Tung Ngo June 22, 2005 DP83848 AspenPHY Demo II Board Rock Hopper Setup Instruction (v1.1) Revision History: V1.0 Initial Release V1.1 Added important note to option 2 of Power Requirements. Power requirements: The device requires 3.3V to operate. The on board regulators convert input voltage into 3.3V for the device. Voltage for the device can either be applied through an MII connection, or connecting to a Power Over Ethernet PSE device through these pins: (+) for 1, 2, 4, 5 and (-) for 3, 6, 7, 8 of RJ-45 connector, or an external power supply. 1. MII connection: Connect directly to SmartBits or through an MII cable. A voltage regulator, U4, will convert 5V generates through the MII connection to 3.3V for the device. Need to install J58. 2. PSE device through pins: (+) for 1, 2, 4, 5 and (-) for 3, 6, 7, 8 of RJ-45 connector. An onboard POE circuit will detect and convert the voltage to 3.3V for the device. Need to populate 0 ohm resistors (R91, R92, R93, and R94). Important: Further finding indicates during hot swap, a significant amount of current presents at L2 caused damage to the LM5070. Prior to use this power option, L2 must be replaced with one zero ohm resistor. Note: Tests in lab with 48V @ 4A supply showed that 75 ohm resistors (R101, R102, R103, R104), and R12 are okay to be populated while powering through pins: (+) 4,5 and (-) 7,8. 3. External 3.3V power supply: Remove jumper on J58 and resistor R12. Use J55 for external power connections. To access MDIO through SmartBits: add jumpers to J9. For LED options: Add jumper to J30 pins 1-2, Add jumper to J31 pins 1-2, and Add jumper to J32 pins 1-2. The datasheet should be referenced for specific LED settings. 1 Tung Ngo June 22, 2005 Address settings: Setting jumpers to High = 1 H L H L Setting jumpers to Low = 0 The default of PHYAD0 = 1, result for Phy Address per jumper settings are: 0 J57 0 0 J24 J24 J25 PHY Address 02 1 PHY Address 5 0 J24 1 1 J25 J24 PHY Address 03 1 J25 PHY Address 07 Configuration to use with different clocks: There are two options to choose: Oscillator and Crystal. 1. 2. On this board, a crystal is used as clock input for the device. To use with an oscillator, remove the zero ohm resistor at R63 and place it at R59. Table of jumpers: Jumper Name Function J1 J3 J4 J5 J6 (Not populated) J9 J13 J15 J16 J17 J18, J19, J20, J21, J22 J57, J24, J25 J30, J31, J32 J50 J55 J56 J58 J59 MII Header MDIX_EN LED_CFG MII_MODE 25MHz_OUT MDIO/MDC MII Male Connector JTAG pins PWR_DWN/INT SNI Ground Post PHYAD [2:0] AN_EN, AN1, AN0 Connector External 3V3 RESET_N Global 3V3 50MHz Alternative connection for MII pins. To Enable/Disable MDIX mode. (Default is Auto-MDIX Enable). To set LEDs configuration. See datasheet. To work with J17 for MII Mode configuration. See datasheet. 25MHz clock output Allow MDIO/MDC signals connect from J1 to J13 SmartBits interface JTAG interface To set Power Down and Interrupt Mode To work with J5 for MII Mode configuration. See datasheet. Randomly placed grounding posts Phy Addresses strap pins Auto-Negotiation strap pins RJ-45 connector To apply external 3.3V supply to the board. J58 must be removed. To apply external RESET To allow global 3.3V supply to the board. 50 MHz clock input for RMII mode 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Applications Audio www.ti.com/audio Automotive and Transportation www.ti.com/automotive Amplifiers amplifier.ti.com Communications and Telecom www.ti.com/communications Data Converters dataconverter.ti.com Computers and Peripherals www.ti.com/computers DLP® Products www.dlp.com Consumer Electronics www.ti.com/consumer-apps DSP dsp.ti.com Energy and Lighting www.ti.com/energy Clocks and Timers www.ti.com/clocks Industrial www.ti.com/industrial Interface interface.ti.com Medical www.ti.com/medical Logic logic.ti.com Security www.ti.com/security Power Mgmt power.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defense Microcontrollers microcontroller.ti.com Video and Imaging www.ti.com/video RFID www.ti-rfid.com OMAP Mobile Processors www.ti.com/omap Wireless Connectivity www.ti.com/wirelessconnectivity TI E2E Community Home Page e2e.ti.com Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2012, Texas Instruments Incorporated