XR28V382IL32-0A-EB

XR28V382 / XR28V384 Evaluation Board User Manual MaxLinear Confidential TBD/18 MaxLinear Confidential •023UMR00 www.maxlinear.com • 023UMR00 i XR28V382 / XR28V384 Evaluation Board User Manual Revision History Revision History Document No. Release Date Change Description 1.0.0 1/27/14 Legacy Exar Manual 023UMR00 8/19/20 Corrected jumper number in Tables 11 and 12, corrected Tables 10 and 15. MaxLinear Confidential 8/19/20 023UMR00 ii XR28V382 / XR28V384 Evaluation Board User Manual Table of Contents Table of Contents 1.0 Introduction................................................................................................................................................... 1 2.0 Evaluation Board Overview ......................................................................................................................... 1 3.0 Hardware Configurations............................................................................................................................. 3 3.1 Power Requirements ...............................................................................................................................................3 3.2 LPC Bus Interface ...................................................................................................................................................3 3.3 XR28V384 Configuration Jumper Settings..............................................................................................................4 3.3.1 Reset ...........................................................................................................................................................4 3.3.2 Configuration Port Selection........................................................................................................................4 3.3.3 Configuration Entry Key Selection...............................................................................................................4 3.3.4 Base Address Selection ..............................................................................................................................4 3.4 XR28V382 Configuration Jumper Settings..............................................................................................................5 3.4.1 Reset ...........................................................................................................................................................5 3.4.2 Configuration Port Selection........................................................................................................................5 3.4.3 Configuration Entry Key Selection...............................................................................................................5 3.4.4 Base Address Selection ..............................................................................................................................5 4.0 Software......................................................................................................................................................... 6 4.1 BIOS Support ..........................................................................................................................................................6 4.2 Software Drivers ......................................................................................................................................................6 MaxLinear Confidential 8/19/20 023UMR00 iii XR28V382 / XR28V384 Evaluation Board User Manual List of Figures List of Figures Figure 1: Evaluation Board Block Diagram.............................................................................................................................1 Figure 2: Top View of Evaluation Board .................................................................................................................................2 MaxLinear Confidential 8/19/20 023UMR00 iv XR28V382 / XR28V384 Evaluation Board User Manual List of Tables List of Tables Table 1: Evaluation Board Ordering Part Numbers .............................................................................................. 1 Table 2: Power Requirements .............................................................................................................................. 3 Table 3: LPC Bus Interface Signals...................................................................................................................... 3 Table 4: Configuration Port Selection ................................................................................................................... 4 Table 5: Configuration Entry Key Selection .......................................................................................................... 4 Table 6: UART Channel A Base Address Selection ............................................................................................. 4 Table 7: UART Channel B Base Address Selection ............................................................................................. 4 Table 8: UART Channel C Base Address............................................................................................................. 4 Table 9: UART Channel D Base Address............................................................................................................. 4 Table 10: Watchdog Timer Base Address ............................................................................................................ 4 Table 11: Configuration Port Selection ................................................................................................................. 5 Table 12: Configuration Entry Key Selection ........................................................................................................ 5 Table 13: UART Channel A Base Address Selection ........................................................................................... 5 Table 14: UART Channel B Base Address Selection ........................................................................................... 5 Table 15: Watchdog Timer Base Address ............................................................................................................ 5 MaxLinear Confidential 8/19/20 023UMR00 v XR28V382 / XR28V384 Evaluation Board User Manual Introduction 1.0 Introduction This user’s manual is for the XR28V382 and XR28V384 evaluation board. The XR28V384 is a 4-channel UART witha Low Pin Count (LPC) bus interface in a 48-pin TQFP package. The XR28V382 is the 2-channel version available in a smaller 32-pin QFN package. Table 1: Evaluation Board Ordering Part Numbers Device Ordering Part Number Evaluation Board Ordering Part Number Device Package Device Location XR28V382IL32-F XR28V382IL32TR-F XR28V382IL32-0A-EB 32-pin QFN U2 XR28V384IM48-F XR28V384IM48TR-F XR28V384IM48-0A-EB 48-pin TQFP U3 2.0 Evaluation Board Overview A block diagram of the evaluation board is shown in Figure 1 below. TP2 3.3V J1 Signal Header SP339 DB9 Connector SP339 DB9 Connector SP339 DB9 Connector SP339 DB9 Connector XR28V384 XR28V382 TP7 GND Figure 1: Evaluation Board Block Diagram In addition to the XR28V384 or XR28V382, there is a MaxLinear SP339 Multiprotocol transceiver on this evaluation board. The SP339 can be configured for Loopback, RS-232, Half-Duplex RS-485 or Full-Duplex RS485 / RS-422 Modes. The default setting when shipped from the factory is RS-232 mode. Figure 2 on the next page shows the top view of the evaluation board with all of the components, connectors and headers labeled. MaxLinear Confidential 8/19/20 023UMR00 1 XR28V382 / XR28V384 Evaluation Board User Manual Evaluation Board Overview Figure 2: Top View of Evaluation Board MaxLinear Confidential 8/19/20 023UMR00 2 XR28V382 / XR28V384 Evaluation Board User Manual Hardware Configurations 3.0 Hardware Configurations This sections describes the default settings when shipped from the factory and what jumper setting changes are required when changing modes. 3.1 Power Requirements External power is required for this board to function properly. Table 2: Power Requirements Test Point Description TP2 Apply an external +3.3V supply to this test point (or any other +3.3V test point). TP7 Connect GND of external power supply to this test point (or any other GND test point). 3.2 LPC Bus Interface All of the LPC interface signals are located on connector J1. These signals will need to be connected to an external LPC host controller. Table 3 below provides a brief description of each signal. Table 3: LPC Bus Interface Signals Pin Number Signal Name Input / Output Description J1.1 LPC_LAD0 I/O LPC Bus address / data bit-0 J1.3 LPC_LAD1 I/O LPC Bus address / data bit-1 J1.5 LPC_LAD2 I/O LPC Bus address / data bit-2 J1.7 LPC_LAD3 I/O LPC Bus address / data bit-3 J1.11 PCI_RST# Input LPC Bus reset J1.15 LPC_FRAME# Input LPC frame signal J1.19 CLK_33MC Input 33MHz PCI / LPC clock J1.12 SERIRQ Open-Drain Output Serial IRQ Refer to the datasheet for complete details and descriptions of each signal. MaxLinear Confidential 8/19/20 023UMR00 3 XR28V382 / XR28V384 Evaluation Board User Manual XR28V384 Configuration Jumper Settings 3.3 XR28V384 Configuration Jumper Settings 3.3.1 Reset 3.3.4.2 UART Channel B Base Address Selection For normal operation, a jumper should be installed between J18.1 and J18.2. If a jumper is installed between J18.2 and J18.3, the XR28V384 will be in reset mode. Table 7: UART Channel B Base Address Selection Jumper1 (J17) 3.3.2 Configuration Port Selection Table 4: Configuration Port Selection Jumper (J16) Index Port Address Data Port Address Yes 0x4E 0x4F No 0x2E 0x2F Jumper2 (J19) Base Address No No 0x2F8 No Yes 0x2F8 Yes No 0x2E0 Yes Yes 0x000 (disabled) 3.3.4.3 UART Channel C Base Address There are no selections for channel C. The channel C base address defaults to 0x3E8, if enabled. Channel C is enabled if there is no jumper installed on J21. 3.3.3 Configuration Entry Key Selection Table 8: UART Channel C Base Address Table 5: Configuration Entry Key Selection Jumper1 (J21) Base Address No 0x3E8 Yes 0x000 (disabled) Jumper1 (J20) Jumper2 (J23) Entry Key Yes Yes 0x77 Yes No 0xA0 No Yes 0x87 3.3.4.4 UART Channel D Base Address No No 0x67 There are no selections for channel D. The channel D base address defaults to 0x2E8, if enabled. Channel C is enabled if there is no jumper installed on J24. 3.3.4 Base Address Selection The XR28V384 has weak internal pull-up resistors for the configuration pins. On the evaluation board, there are pulldown resistors for selecting the base address and to enable / disable the different functions. "Yes" in the tables in the following sections indicate that the jumpers are installed. 3.3.4.1 UART Channel A Base Address Selection Table 9: UART Channel D Base Address Jumper1 (J24) Base Address No 0x2E8 Yes 0x000 (disabled) 3.3.4.5 Watchdog Timer Base Address The watchdog timer base address defaults to 0x442. The watchdog timer is enabled if there is no jumper installed on J22. Table 6: UART Channel A Base Address Selection Jumper1 (J14) Jumper2 (J15) Base Address No No 0x3F8 No Yes 0x3F8 Jumper1 (J22) Base Address Yes No 0x3E0 No 0x442 Yes Yes 0x000 (disabled) Yes 0x000 (disabled) Table 10: Watchdog Timer Base Address Note: All base address registers can be overwritten after power-up. See the datasheet for details. MaxLinear Confidential 8/19/20 023UMR00 4 XR28V382 / XR28V384 Evaluation Board User Manual XR28V382 Configuration Jumper Settings 3.4 XR28V382 Configuration Jumper Settings 3.4.1 Reset 3.4.4.1 UART Channel A Base Address Selection For normal operation, a jumper should be installed between J18.1 and J18.2. If a jumper is installed between J18.2 and J18.3, the XR28V382 will be in reset mode. Table 13: UART Channel A Base Address Selection Jumper1 (J6) 3.4.2 Configuration Port Selection Table 11: Configuration Port Selection Jumper (J9) Index Port Address Data Port Address Yes 0x4E 0x4F No 0x2E 0x2F Jumper2 (J8) Base Address No No 0x3F8 No Yes 0x3F8 Yes No 0x3E0 Yes Yes 0x000 (disabled) 3.4.4.2 UART Channel B Base Address Selection Table 14: UART Channel B Base Address Selection Jumper1 (J7) Jumper2 (J10) Base Address 3.4.3 Configuration Entry Key Selection No No 0x2F8 No Yes 0x2F8 Table 12: Configuration Entry Key Selection Yes No 0x2E0 Yes Yes 0x000 (disabled) Jumper1 (J11) Jumper2 (J5) Entry Key Yes Yes 0x77 Yes No 0xA0 3.4.4.3 Watchdog Timer Base Address No Yes 0x87 No No 0x67 The watchdog timer base address defaults to 0x442. The watchdog timer is enabled if there is no jumper installed on J22. 3.4.4 Base Address Selection Table 15: Watchdog Timer Base Address The XR28V382 has weak internal pull-up resistors for the configuration pins. On the evaluation board, there are pulldown resistors for selecting the base address and to enable / disable the different functions. "Yes" in the tables in the following sections indicate that the jumpers are installed. Jumper1 (J12) Base Address Pins 1 & 2 0x442 Pins 2 & 3 0x000 (disabled) MaxLinear Confidential 8/19/20 023UMR00 5 XR28V382 / XR28V384 Evaluation Board User Manual Software 4.0 Software 4.1 BIOS Support 4.2 Software Drivers The BIOS needs to have support for detecting and / or configuring devices on the LPC bus. If the BIOS does not support this function and this function is not added to the BIOS, then the operating system may not be able to access some or all of these ports. The XR28V384 and XR28V382 are software compatible with the industry standard 16550 UARTs. Hence, they will work with any OS that has a standard serial port drivers such as Windows and Linux. MaxLinear Confidential 8/19/20 023UMR00 6 XR28V382 / XR28V384 Evaluation Board User Manual Disclaimer MaxLinear, Inc. 5966 La Place Court, Suite 100 Carlsbad, CA 92008 760.692.0711 p. 760.444.8598 f. www.maxlinear.com The content of this document is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by MaxLinear, Inc. MaxLinear, Inc. assumes no responsibility or liability for any errors or inaccuracies that may appear in the informational content contained in this guide. Complying with all applicable copyright laws is the responsibility of the user. Without limiting the rights under copyright, no part of this document may be reproduced into, stored in, or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written permission of MaxLinear, Inc. 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