Related Manuals for Texas Instruments TUSB2136
Summary of Contents for Texas Instruments TUSB2136
- Page 1 USB Keyboard/Hub EVM Featuring the TUSB2136 and the TPS2149 User’s Guide December 2001 Mixed Signal Products SCAU003...
- Page 2 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.
- Page 3 EVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms...
- Page 4 EVM schematic located in the EVM User’s Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Copyright 2001, Texas Instruments Incorporated Mailing Address: Texas Instruments Post Office Box 655303...
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Page 5: Read This First
Chapter 5 – EVM Layout Related Documentation From Texas Instruments TPS2149 3.3-V LDO and Dual Switch data sheet, literature number SLVS401 TUSB2136 USB Keyboard Hub Controller data sheet, literature number SLLS442 FCC Warning This equipment is intended for use in a laboratory test environment only. It gen-... -
Page 7: Table Of Contents
Introduction ..............Required Hardware and Software Hardware Overview . - Page 8 viii...
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Page 9: Introduction
Chapter 1 Introduction This user’s guide describes the setup and operation of the USB keyboard/hub evaluation module (EVM). Information and instruction presented throughout this document assumes user familiarity with universal serial bus (USB) protocol and the use of common lab testing equipment. Additional information about this EVM can be found at: www.ti.com/sc/usb–kbdkit Topic... -
Page 10: 1.1 Required Hardware And Software
Required Hardware and Software 1.1 Required Hardware and Software The USB keyboard/hub EVM is designed for use with a personal computer running a USB-enabled operating system. The PC, with BIOS, chipsets, and operating system, should be USB 1.1 or 2.0 specification-compliant. If the BIOS is not compliant, the system may not boot when USB devices are connected at power up, and the EVM may not function. -
Page 11: Hardware Overview
Hardware Overview The USB keyboard/hub EVM features the TUSB2136 and the TPS2149 made by Texas Instruments. The EVM is a two-board set made up of a stand alone two-port hub (edge #6436539) and a miniature QWERTY keyboard (edge #6436540). Jumpers (0- resistors) and jumper blocks provided on the EVM are installed with the factory settings. -
Page 13: Evm Operation
Operation of the USB keyboard/hub EVM is summarized in this chapter. Topic Setup ............Interfaces and USB Ports . -
Page 14: Setup
A set of six green LEDs (D2 – D7), connected to P3.0 through P3.5 of the TUSB2136, may be used for general purposes in any code that is written for the TUSB2136 (see Table 3–1). By default, the factory code provides the EVM with the use of only three of the LEDs as keyboard status indicators for Scroll Lock (D2), Caps Lock (D3), and Num Lock (D4). -
Page 15: Jumpers And Test Points
Connects the transmit and receive lines on the RS232 interface chip to the TUSB2136 A set of six switches used to configure the TUSB2136. For proper operation with the firmware and EVM, SW1–3, SW1–5, and SW1–6 should be set to on. - Page 16 EEPROM Table 3–3. QWERTY Keyboard Matrix Port P3.6 P0.6 P0.7 Matrix COL 1 COL 2 COL 3 P2.7 ROW 1 P2.6 ROW 2 P2.5 ROW 3 P2.4 ROW 4 P2.3 ROW 5 P2.2 ROW 6 P2.1 ROW 7 P2.0 ROW 8 –...
- Page 17 EVM Operation...
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Page 18: Bill Of Materials
This chapter contains the EVM bill of materials for edge number 6436539 and edge number 6436540. Table 4–1. EVM Bill of Materials for Edge Number 6436539 RefDes Description C1, C2 Capacitor, ceramic, 33 pF, 16 V, [temp], 5% C3, C4, C25 Capacitor, tantalum, 4.7 F, 10 V, zz m , 20% C5, C11 –... - Page 19 Table 4–1. EVM Bill of Materials for Edge Number 6436539 (Continued) RefDes Description R10, R11, R18, Resistor, chip, 30 , 1/10 W, 5% R19, R22, R26 R15, R17, R30 Resistor, chip, 1 k , 1/10 W, 5% R20, R21 Resistor, chip, 20 k , 1/10 W,5% R16, R23 Resistor, chip, 200 k , 1/10 W, 5% Resistor, chip, 10 , 1/10 W, 5%...
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Page 20: Evm Layout
Chapter 5 EVM Layout This chapter contains the EVM layout and schematics for edge number 6436539 and 6436540. EVM Layout...