ur7hcts2-p840 Semtech Corporation, ur7hcts2-p840 Datasheet
ur7hcts2-p840
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ur7hcts2-p840 Summary of contents
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... PS/2 pointing device. Both the touch screen and the external device can be operated concurrently without any penalty. The UR7HCTS2-P840 is equipped with a special command protocol that enables the touch screen to operate in either relative (mouse- like) or absolute positioning mode. Because the IC interfaces via the ...
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... PS2 Eval. Kit Evaluation Kit Note 1: XXX= Denotes Revision number Left Button Switch Interface X Input Y Input Control Sensor Interface 16 bit Timer Oscillator Circuit OSCIN 2 TA=-20° +85° C UR7HCTS2-P840-FG Order number EVK7-TS2-P840-XXX Right Button Drivers for Touch Screen 4 Sensor Sense Lines 4 OSCOUT www.semtech.com ...
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... Copyright ©1999-2001 Semtech Corporation DOC7-TS2-P840-DS-106 PIN DEFINITIONS Mnemonic Pin # Type Name and Function VDD 8 P Power Supply VSS 11 P Ground VSS2 7 P Ground OSCIN 9 I Oscillator Input: external clock input or one side of the Ceramic Resonator with built-in Load Capacitors _OSCOUT ...
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... The ScreenCoder TM UR7HCTS2-P840 consists functionally of six major sections (see the Functional Diagram on page 2). These are the Sensor Interface, Power Management section, the 16-Bit Timer, the Oscillator Circuit, the PS/2 Communication Port and the 8042 Emulation Port. All sections communicate with each other and operate concurrently ...
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... PS/2 device has been powered-down by the host, it will actively eliminate shot-through current in the input buffers for the clock and data lines by driving both low. The ScreenCoder TM UR7HCTS2-P840 will re-initialize the external PS/2 pointing device when the power to the external PS/2 port is restored. Figure 2: Semtech’s System-coordinated Power Management _PWR_DOWN=0 _PWR_DOWN=1 ...
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... Please check with Semtech for other driver availability. Those that wish to undertake their own driver development will need to request from Semtech the document covering the extended PS/2 protocol used by the UR7HCTS2-P840. Copyright ©1999-2001 Semtech Corporation DOC7-TS2-P840-DS-106 DATA REPORT FORMAT TABLE Byte 1 b0 ...
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... PS/2 MODE COMMANDS When the Reset Command (FFh) is received, the UR7HCTS2-P840 sets the following default parameters: Incremental Stream Mode, 1:1 scaling, report rate of 100 Hz, and disabled. It then sends AAh to the host followed by a device ID of 00h. The Host sends the Resend Last Data Stream Command (FEh) when the host detects an error in any UR7HCTS2-P840 transmission ...
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... BIOS performs error detection. Thus, a programmer can have complete control of the mouse without having to access the device hardware port directly. The UR7HCTS2-P840 implements a special sequential command that can be used to determine its ability to report three buttons. The sequential command is a series of commands to the ScreenCoder the device to respond to the last command (Read Status) with alternate information ...
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... For Commands and Data Report organization, please refer to the Semtech Extended PS/2 Protocol with Absolute Positioning Mode Support document. Copyright ©1999-2001 Semtech Corporation DOC7-TS2-P840-DS-106 RELATIVE POSITIONING MODE In relative positioning mode, the ScreenCoder mouse, using a standard system mouse driver. Button functionality can be achieved as follows: actual switches will act as left and right buttons tap on the screen will act as a left-button click ...
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... C1 .1uF TC54VC4502ECB C3-C6 10nF NOT_RESET 1 RN1 10K REF VALUE 3 Y1 4.00 MHz GND (C)2000 USAR Systems, A Semtech Company EXT_PS2_VDD 568 BROADWAY NEW YORK, NY 10012 Ph 212.226.2042 Fax 212.226.3215 ScreenCoder II UR7HCTS2-P840-FG UR7HCTS2P840 Rev 0.8 EXT_PS2_VDD L1 12uH JP3 C7 MDIN6_SH 6 5 47pF GND 47pF Mounting ...
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... SCREENCODER PS2 EVALUATION BOARD MECHANICAL TM Copyright ©1999-2001 Semtech Corporation DOC7-TS2-P840-DS-106 11 www.semtech.com ...
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... SUGGESTED EVALUATION BOARD INTERFACING FOR THE SCREENCODER Copyright ©1999-2001 Semtech Corporation DOC7-TS2-P840-DS-106 12 PS2 UR7HCTS2-P840-FG TM www.semtech.com ...
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... MECHANICAL INFORMATION FOR THE FG PACKAGE Detail Recommended PCB Footprint Copyright ©1999-2001 Semtech Corporation DOC7-TS2-P840-DS-106 Symbol Dimension in Millimeters ...
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... Supply Voltage Vdd Input Voltage Vin Current Drain per Pin I (not including Vss or Vdd) Operating Temperature Ta UR7HCTS2-P840 Storage Temperature Range Tstg DC Electrical Characteristics, Temperature range=T low to T high unless otherwise noted) Characteristic Symbol Supply Voltage Output Voltage (10 A load) Voh Vol ...
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... SCREENCODER PS2 BILL OF MATERIALS FOR PAGE 10 SCHEMATIC TM UR7HCTS2-P840-FG BOM Description Quantity Manufacturer Capacitors Generic C2 1 Generic C3, C4, C5 Generic C7 Generic ICs Semtech U2 1 Telcom Resistor Network RN1 1 Generic Resonator AVX Inductor L1 1 Generic Note: Auxillary components are not shown. ...
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... Telefax Copyright ©1999-2001 Semtech Corporation. All rights reserved. MouseCoder, ScreenCoder and Self-Power Management are trademarks of Semtech Corporation. Semtech is a registered trademark of Semtech Corporation. All other trademarks belong to their respective companies. INTELLECTUAL PROPERTY DISCLAIMER This specification is provided "as is" with no warranties whatsoever ...