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SX8675ICSTRT Datasheet(PDF) 3 Page - Semtech Corporation |
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SX8675ICSTRT Datasheet(HTML) 3 Page - Semtech Corporation |
3 / 64 page ADVANCED COMMUNICATIONS & SENSING Rev 1 – 25 th July 2011 3 www.semtech.com SX8674/SX8675/SX8676 Haptics Enabled Multitouch 4/5-Wire Resistive Touchscreen Controller with Proximity Sensing 5.3.4 PROXAVG Update 31 5.3.5 PROXDIFF Update 33 5.3.6 PROXSTAT Update 33 5.4 Host Operation 34 5.4.1 General Description 34 5.4.2 Proximity Sensing vs Touch Operations 34 5.4.3 Minimum Scan Period (i.e. PROXSCANPERIOD) 36 6 HAPTICS INTERFACE (SX8674/75) .......................................................................................... 37 6.1 Introduction 37 6.2 ERM Load 37 6.2.1 Introduction 37 6.2.2 PWM Mode 38 6.2.3 I2C Mode 38 6.3 LRA Load 38 6.3.1 Introduction 38 6.3.2 PWM Mode 39 6.3.3 I2C Mode 39 6.4 Short-Circuit Protection 39 7 TEMPERATURE SENSOR.......................................................................................................... 40 8 INTERRUPT (NIRQ) .................................................................................................................. 41 8.1 Introduction 41 8.2 Registers Overview 41 8.2.1 RegIrqMsk 41 8.2.2 RegIrqSrc 41 8.2.3 RegStat 41 8.3 Host Procedure 41 9 AUXILIARY PINS (AUX1/AUX2/AUX3)...................................................................................... 42 10 RESET...................................................................................................................................... 43 10.1 Hardware (POR and NRST) 43 10.2 Software (RegReset) 43 10.3 ESD Event (RESETSTAT) 43 11 I2C INTERFACE........................................................................................................................ 44 11.1 Introduction 44 11.2 I2C Address 44 11.3 Write Register 44 11.4 Read Register 45 11.5 Write Command (Touchscreen Interface) 45 11.6 Read Channel (Touchscreen Interface) 46 12 REGISTERS DETAILED DESCRIPTION ...................................................................................... 48 13 APPLICATION INFORMATION ................................................................................................... 60 13.1 Typical Application Circuit 60 13.2 External Components Recommended Values 60 13.3 Multitouch Gestures 60 13.3.1 Pinch/Stretch 60 13.3.2 Rotate 61 14 PACKAGING INFORMATION ..................................................................................................... 62 14.1 QFN Package 62 14.2 CSP Package 63 |
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