User’s Guide December 2001 Mixed Signal Products SCAU003
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.
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.
EVM WARNINGS AND RESTRICTIONS It is important to operate this EVM within the specified input and output ranges described in the EVM User’s Guide. Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions concerning the input range, please contact a TI field representative prior to connecting the input power.
Related Documentation From Texas Instruments Preface Read This First How to Use This Manual This document contains the following chapters: - Chapter 1 – Introduction - Chapter 2 – Hardware Overview - Chapter 3 – EVM Operation - Chapter 4 – Bill of Materials - Chapter 5 – EVM Layout Related Documentation From Texas Instruments TPS2149 3.
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Contents Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1 Required Hardware and Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 2 Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 3 EVM Operation . . . . . . . . . . . . . . . . . . .
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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 1.1 Page 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.
Chapter 2 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-Ω resistors) and jumper blocks provided on the EVM are installed with the factory settings. The settings are described in Table 3–2. Review all setting changes prior to powering the EVM.
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Chapter 3 EVM Operation Operation of the USB keyboard/hub EVM is summarized in this chapter. Topic Page 3.1 Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.2 Interfaces and USB Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.3 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.4 Light-Emitting Diodes (LEDs) . . . . . . .
Setup 3.1 Setup The USB keyboard/hub EVM is designed to allow evaluation of the TUSB2136 and the TPS2149 device. Test points and 0-Ω resistors are provided to simplify the evaluation process (see section 3.5). The EVM comes in a default configuration that requires no additional components, other than the required hardware and software identified in Section 1.1 of this user’s guide.
Jumpers and Test Points 3.5 Jumpers and Test Points Table 3–2 describes the jumpers J1 and J2, used to connect P3.0 and P3.1 to D6 and D7 respectively, which should only be done when P3.0/S0 and P3.1/S1 are not set to GND for VID/PID selection (see the TUSB2136 keyboard hub controller data sheet, literature number SLLS442) via SW1–3 and SW1–4. Table 3–2 also describes the various 0-Ω resistors used as jumpers. Test points are located throughout the EVM.
EEPROM Table 3–3. QWERTY Keyboard Matrix Port No. Matrix P3.6 COL 1 P0.6 COL 2 P0.7 COL 3 P0.4 COL 4 P0.5 COL 5 P0.2 COL 6 P0.3 COL 7 P2.7 ROW 1 Q 9 A 6 Z 3 DEL P2.6 ROW 2 W 8 S 5 X 2 0 P2.5 ROW 3 E 7 D 4 C 1 INS P2.4 ROW 4 R ESC F HOME V END R ARROW P2.3 ROW 5 T I G K B / SPACE P2.2 ROW 6 Y P H “ N U ARROW D ARROW P2.1 ROW 7 U O J L M \ L ARROW P2.0 ROW 8 – , + ENTER . 3-4 P0.0 COL 8 P0.1 COL 9 P1.
EVM Operation 3-5
Chapter 4 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 QTY RefDes Description Size MFR Part Number 2 C1, C2 Capacitor, ceramic, 33 pF, 16 V, [temp], 5% 805 MuRata GRM39C0G330J100V 3 C3, C4, C25 Capacitor, tantalum, 4.7 µF, 10 V, zz mΩ, 20% 3528 Panasonic 293D475X0010B2T 9 C5, C11 – C14, C17 – C20 Capacitor, ceramic, 0.
Table 4–1. EVM Bill of Materials for Edge Number 6436539 (Continued) QTY RefDes Description Size MFR Part Number 6 R10, R11, R18, R19, R22, R26 Resistor, chip, 30 Ω, 1/10 W, 5% 805 Std Std 3 R15, R17, R30 Resistor, chip, 1 kΩ, 1/10 W, 5% 805 Std Std 2 R20, R21 Resistor, chip, 20 kΩ, 1/10 W,5% 805 Std Std 2 R16, R23 Resistor, chip, 200 kΩ, 1/10 W, 5% 805 Std Std 1 R24 Resistor, chip, 10 Ω, 1/10 W, 5% 805 Std Std 1 R25 Resistor, chip, 1.
Chapter 5 EVM Layout This chapter contains the EVM layout and schematics for edge number 6436539 and 6436540.
