Related Manuals for Texas Instruments TCA8418 I2C
Summary of Contents for Texas Instruments TCA8418 I2C
- Page 1 TCA8418 I C Controlled Keypad Scan IC Evaluation Module User's Guide Literature Number: SCPU033 May 2010...
- Page 2 SCPU033 – May 2010 Copyright © 2010, Texas Instruments Incorporated...
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Page 3: Table Of Contents
GUI Installation ....................... GUI Functionality ....................3.2.1 Keypad Mode ..................... 3.2.2 Overflow Mode ....................3.2.3 GPIO Mode ................... 3.2.4 Registers and I ..............Related Documentation from Texas Instruments SCPU033 – May 2010 Table of Contents Copyright © 2010, Texas Instruments Incorporated... - Page 4 ..................TCA8418 EVM GUI: GPIO Mode ................. TCA8418 EVM GUI: Registers and I List of Tables ..................... Test Point Descriptions ......................Jumper Descriptions ......................Bill of Materials List of Figures SCPU033 – May 2010 Copyright © 2010, Texas Instruments Incorporated...
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Page 5: Preface
If external pullup resistors are used instead, make sure to pull up to 3.3 V only. Operation from 5 V is not specified and may permanently damage this EVM. All trademarks are the property of their respective owners. SCPU033 – May 2010 Preface Copyright © 2010, Texas Instruments Incorporated... - Page 6 Operation of this equipment in other environments may cause interference with radio communications, in which case the user at his/her own expense will be required to take whatever measures may be required to correct this interference. Preface SCPU033 – May 2010 Copyright © 2010, Texas Instruments Incorporated...
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Page 7: Introduction
Module Introduction The TCA8418 EVM is an evaluation module (EVM) for the Texas Instruments (TI) inter-integrated circuit C) controlled keypad scan IC. The TCA8418 keypad scan IC operates from supply voltage range of 1.65 V to 3.3 V. It offers high level of electrostatic discharge (ESD) protection and supports 1-MHz Fast Mode Plus I C bus. -
Page 8: Software Uninstall Instructions
, U5 must be disabled by shunting 2-3 on TCA8418 V JMP4. Ground test point Ground test point Ground test point SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... -
Page 9: Jumper Configuration (Jmp1 Through Jmp6)
Shunt JMP4 to short EEPROM SCL line JMP6, JMP7, JMP8, and JMP9 must all have the same configuration for correct GUI operation. SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... -
Page 10: Jumper Configuration: Jmp1 And Jmp2
USB_5V. To disable the LDOs, shunt pins 2 and 3 of the JMP3 and JMP4 to tie the enable pins to ground. SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... -
Page 11: Jumper Configuration: Jmp5
TCA8418_VCC JMP6 JMP7 JMP8 GPI Function JMP9 Keypad Function GPO Function Keypad Function Figure 4. Jumper Configuration: JMP6, JMP7, JMP8, JMP9 SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... -
Page 12: Schematics
EVM Configuration and Description www.ti.com Schematics Figure 5. Schematics (1 of 2) SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... - Page 13 EVM Configuration and Description www.ti.com Figure 6. Schematics (2 of 2) SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated...
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Page 14: Bill Of Materials
Ref designators marked with an asterisk ('**') cannot be substituted. All other components can be substituted with equivalent manufacturer's components. Maximum 30 grams placement pressure on WCSP-6 parts. SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... -
Page 15: Bill Of Materials
SOT-5 TPD3E001DRL array LP2985-33 IC, 150mA LDO regulator SOT23-5 LP2985-33DBV ABLS-12.000MHz- 12MHz Crystal, 12MHz, 18pF, SMD 500mil x 190mil Abracon B2-T SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... -
Page 16: Gui Configuration And Description
Figure 8. TCA8418 EVM Application Installation 3. Open the GUI from Start > All Programs. For Windows XP, the link to run the TCA8418 EVM GUI is installed to Start > All Programs > Texas Instruments > TCA8418 EVM. SCPU033 – May 2010... -
Page 17: Gui Functionality
Lock/Unlock: Lock or unlock the TCA8418 EVM. During locked mode, press keys S9 and S10 on the EVM to unlock the EVM. Clear Screen: Clear the key screen Clear History: Clear the key history screen SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... -
Page 18: Overflow Mode
Overflow On/Off: Enable or disable the overflow mode Read Keys: Read the key events from the key event registers through I Clear History: Clear the key history screen. SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... -
Page 19: Gpio Mode
GUI. On/Off for D82: Turn on or off LED D82. On/Off for D83: Turn on or off LED D83. SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... -
Page 20: Registers And I
Read. The read results are displayed on the corresponding section, and the I2C Read Status indicates the I C transaction result. I2C Read All TCA8418 Registers: Read all of the TCA8418 registers SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... -
Page 21: Related Documentation From Texas Instruments
Related Documentation from Texas Instruments www.ti.com Related Documentation from Texas Instruments TCA8418 I C Controlled Keypad Scan IC with Integrated ESD Protection data sheet (SCPS215) SCPU033 – May 2010 TCA8418 I C Controlled Keypad Scan IC Evaluation Module Copyright © 2010, Texas Instruments Incorporated... - Page 22 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.
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