MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective.

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MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. 3G2005 Platform Keypad C. Cutrone

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. Agenda 1.Overview 2.Keypad scanning method 3.Shadowing 4.Keypad Interface 5.Different Keypad layouts

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. Overview

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. General Keypad Layout Phone-like key layout implemented on the Brassboard Include 3 spare keys to adapt to differents keypad mappings Based on 2 contact switches (ITT Cannon KSC221J)

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. Key Switches : 2 pole implementation Key Switch not pressed = opened line Key Switch pressed = contact Key Switch within Keypad

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. Keypad Interface Argon+ keypad interface supports up to 8 by 8 key matrix Columns are output (open- drain) Rows are input (with pull- up enabled) Programmable interruption to ARM core

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. Key Press Detection Columns are outputs Rows are inputs By default, all columns are low Key press creates an interruption that starts complete keypad scanning

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. Shadowing Occurs when multi keys are pressed Risk is to detect more keys than really pressed or wrong keys Columns are outputs, rows are inputs. Outputs are open drain => Support of multi key press should be done carefully

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. Generic (Carina) Keypad Matrix This the Matrix implemented on Brassboard Highlighted blue keys in Row 0 and Col 3 will be capable of simultaneous key presses. Only single key presses out of the blue area is possible

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. DoCoMo Specific Keypad Matrix Highlighted blue keys in Row 0, Row 1, Col 3, and Col 6 will be capable of simultaneous key presses. Highlighted gray keys can not be used in order to avoid any ghosting scenarios. Only single key presses out of the blue area is possible

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. Thank You

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. Backup Slides

MOTOROLA and the Stylized M Logo are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners. © Motorola, Inc Motorola Confidential Proprietary Add additional legal text here if required by your local Legal Counsel. Original Keypad Mapping Derived from E1000 Keypad Matrix Keys marked in blue can be pressed simultaneously One key pressed out of blue area is valid Other combinations are not valid