Projected Capacitive Touch Solution General Specification

Transcription

1 Doc. Version A Total Page Date 9 Projected Capacitive Touch Solution General Specification Model No.: 9 PANJIT All Rights Reserved.

2 TABLE OF CONTENTS. Revision History.... RANGE OF APPLICATION.... INTERFACE SPECIFICATIONS.... Features.... Mechanical.... Electrical characteristic.... IC Communication AC timing.... Timing Characteristics.... Register Map..... CSR - Control and Status Register (Address x) Clear Flag (Address x) Coordinate Register (Address x ~ xb)..... Register (Address xc).... Mechanical Specifications.... Dimensional Outline..... Touch Module <Front View>..... Touch Module <Rear View>.... Detailed part for the touch window module.... Optical Specifications...

3 . Revision History Item Version Firmware Version Subject Date A CYTST G_9_ CYTST G_9_ Initial Release 9// /

4 . RANGE OF APPLICATION These specifications are applied to Projected Capacitive Sensor Module. INTERFACE SPECIFICATIONS. Features Item Symbol Remark TSP type TSP A/A Window materials ITO layer Projected Capacitive-type Glass TSP. x.99 mm Glass layer Resolution 9 9 IC Multi-touch Interrupt IC Device Address Industry standard Philips IC bus compatible interface (Max. khz) Support up to finger position report (gesture) Level triggered, Active Low, Open Drain Low x (-bit mode) /

5 . Mechanical Pin No. Symbol I/O Function Remark VDD P Power Voltage(.V) GND P Power GND XRES I Reset (Active High) SCL I SCL of IC SDA I/O SDA of IC INT O Interrupt Signal D+ I USB Signal 8 D- P USB Signal /

6 . Electrical characteristic Item Symbol Value Min. Typ. Max. Unit Remark Power Supply VDD... V Current Driver Active IDD < Deep Sleep(Hz) IDD <. ma Interface IC SCL : Khz Hz ESD - ±KV V /

7 . IC Communication AC timing Std. Mode Item Symbol Min. Max. Unit Remark SCL Clock Frequency FSCLIC khz Hold Time(repeated)START Condition, After this Period, the first clock pulse is generated THDSTAIC. - us LOW Period of the SCL Clock T LOWIC. - us HIGH Period of the SCL Clock T HIGHIC. - us Setup Time for a Repeated START Condition T SUSTAIC. - us Data Hold Time T HDDATIC - us Data Setup Time T SUDATIC [] - ns Setup Time for STOP Condition T SUSTOIC. - us Bus Free Time Between a STOP and START Condition T BUFIC. - us Pulse Width of Spikes are Suppressed by the Input Filter T SPIC - us Note. A Fast-Mode IC-bus device can be used in a Standard-Mode IC-bus system, but the requirement tsu;dat = ns must then be met. This automatically is the case if the device does not stretch the LOW period of the SCL signal. If such device does stretch the LOW period of the SCL signal, it must output the next data bit to the SDA line trmax + tsu;dat = + = ns (according to the Standard-Mode IC-bus specification) before the SCL line is released. /

8 . Timing Characteristics IC Timing Characteristics IC write commond IC read commond IC Combined formate /

9 . Register Map Address Name Definition Attribute Bit Descripyion and Default Value D D D D D D D D Note x CSR Control and Status RW Sleep_EN SCAN_EN x C_FLAG Interrupt Clear Flag RW C_FLAG X High Byte of X X X_L Low Byte of X X_L X_L X_L X_L X_L X_L X_L X_L X Y_H High Byte of Y Y_H Y_H Y_H Y_H Y_H Y_H Y_H Y_H x Y_L Low Byte of Y Y_L Y_L Y_L Y_L Y_L Y_L Y_L Y_L x X_H High Byte of X X_H X_H X_H X_H X_H X_H X_H X_H x8 X_L Low Byte of X X_L X_L X_L X_L X_L X_L X_L X_L x9 Y_H High Byte of Y Y_H Y_H Y_H Y_H Y_H Y_H Y_H Y_H xa Y_L Low Byte of Y Y_L Y_L Y_L Y_L Y_L Y_L Y_L Y_L xb Finger Detected finger number Finger Finger xc Interpreted /

10 .. CSR - Control and Status Register (Address x) Address Name Definition Attribute Bit Descripyion and Default Value D D D D D D D D Note x CSR Control and Status RW Sleep_EN SCAN_EN Sleep_EN (deep sleep Enable): Host (Customer Type) can let PSoC automatically enter sleep mode by setting this bit. b Disable b Enable SCAN_EN (Scan Enable): Host needs to set this bit to start scanning. It should be noticed that this bit should not be set until all other parameters are configured. b Disable b Enable 8 /

11 .. Clear Flag (Address x) Address Name Definition Attribute Bit Descripyion and Default Value D D D D D D D D Note x C_FLAG Interrupt Clear Flag RW C_FLA G There three conditions this flag will set by PSoC and the INT pin would be active low:. The system is ready after power on.. The system is ready after reset.. Touch the screen. When the flag is set, user needs to reset this flag and then the INT pin would be pull-up. After scanning, when INT is active low, it means there are some new data is updated and the scanning is stop. User needs to read out the data and then reset the flag to enable the next scan. 9 /

12 .. Coordinate Register (Address x ~ xb) Address Name Definition Attribute X X X x x x8 x9 xa xb X_L Y_H Y_L X_H X_L Y_H Y_L Finger High Byte of X Low Byte of X High Byte of Y Low Byte of Y High Byte of X Low Byte of X High Byte of Y Low Byte of Y Detected finger number Bit Descripyion and Default Value D D D D D D D D X_L X_L X_L X_L X_L X_L X_L X_L Y_H Y_H Y_H Y_H Y_H Y_H Y_H Y_H Y_L Y_L Y_L Y_L Y_L Y_L Y_L Y_L X_H X_H X_H X_H X_H X_H X_H X_H X_L X_L X_L X_L X_L X_L X_L X_L Y_H Y_H Y_H Y_H Y_H Y_H Y_H Y_H Y_L Y_L Y_L Y_L Y_L Y_L Y_L Y_L Finger Finger X position: ~9. No touch detected is xffff. Y position: ~9. No touch detected is xffff. X position: ~9. No touch detected is xffff. Y position: ~9. No touch detected is xffff. Finger (Finger Number): Touch controller will report the touch number, and host use this register to judge touch or non-touch. Note b Non-touch b One finger touch b Two fingers touch b Reserve /

13 Control IC can only support two fingers gesture touch. When two touch, the coordinate would be up right point and down left point... Register (Address xc) Address Name Definition Attribute Bit Descripyion and Default Value D D D D D D D D Note xc Interpreted Code Remark Zoom In xc Zoom Out xd Single-Touch Double Click xe /

14 . Mechanical Specifications. Dimensional Outline.. Sensor Module <Front View> /

15 .. Sensor Module <Rear View> /

16 . Detailed part for the touch window module Part Number Part name thickness material, Cover lens. mm Normal Glass Optical Bonding. mm Liquid optical glue FPC. ±.m CU ITO Glass. mm Glass Protect film (Top) Protect film (Lower). Optical Specifications Items Criteria Note Transmittance 8.8% Based on halogen light /