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UR7HCPXZ-P440 데이터시트 PDF




Semtech Corporation에서 제조한 전자 부품 UR7HCPXZ-P440은 전자 산업 및 응용 분야에서
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부품번호 UR7HCPXZ-P440 기능
기능 Advanced Click-to-Select No-DriftTM PS/2 Force Stick Controller
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UR7HCPXZ-P440 데이터시트, 핀배열, 회로
PixiPointTM Z UR7HCPXZ-P440
Advanced “Click-to-Select”
No-DriftTM PS/2 Force Stick Controller
HID & SYSTEM MANAGEMENT PRODUCTS, MOUSECODERTM FAMILY
DESCRIPTION
The PixiPointTM Z mouse encoder
is a cost-effective, high-
functionality IC designed to
interface the CTS 106, 108 and
109 sensors to the PS/2 port. Ideal
for laptop/palmtop use, the low
power PixiPointTM Z offers an
advanced algorithm for enhanced
motion control. The IC also
enables click, double-click,
MouseWheel action and slow drag
without the need for special
drivers. The IC provides an extra
port for hot-plug connection of an
external pointing device, including
those with built-in Mousewheel.
Both the embedded sensor and
the external device can be
operated concurrently.
The PixiPointTM Z utilizes a special
signal conditioning circuit (US and
International patent pending) which
enables a low cost, simple and real
estate-saving implementation. Just
a few low tolerance external
components are needed.
FEATURES
Accurate cursor control via
Semtechs Advanced Motion
Control algorithm
Click (Select), Double-Click
(Execute), MouseWheel and slow
drag are implemented in the IC
no special driver support required
Enables hot-plug connections of
an external pointing device,
including those with MouseWheel
Offers concurrent operation of
force stick and external pointing
device
Provides ideal interface for CTS
Series 106, 108 and 109 sensors
Low power consumption of
typically less than 3mA makes it
ideal for battery-operated systems
3-5V operation in extended
temperature range
Can utilize standard mouse drivers
Inexpensive, simple and real
estate-saving implementation with
USARs proprietary signal
conditioning circuit
Offers Clean Stopso cursor
stops when you want it to
Compatible with IBM/Microsoft
two-button and Logitech three-
button mouse
Supports all commands from and
to the system, as defined in the
IBM PS/2 Mouse Communication
Protocol
Small 32-pin 7mm X 7mm LQFP
package
Customized versions available
Royalty-free and cost-effective
APPLICATIONS
Notebooks/laptops
Handhelds
Keyboards
Instrumentation
PIN ASSIGNMENTS
The IC implements typically
consumes less than 3mA, making it
suitable for use in battery-operated
systems.
PS/2 communication is
bidirectional at 10 kbps. The IC, a
CMOS device operating at 4 MHz,
is compatible with both the IBM
and Microsoft two-button and the
Logitech three-button mouse
protocols. It implements all
commands from and to the system,
as defined in the IBM PS/2 Mouse
Communication Protocol. Custom
versions are also available to suit a
range of applications.
32
AD
SELX
SELZ
DRVZ
VREF
_RESET
VSS2
VDD
1
8
9
25
24
_MB
_LB
INH
MDAT
MCLK
SSELECT
XCLK1
XCLK
17
16
PixiPoint and MouseCoder are trademarks of
Semtech Corp. All other trademarks belong to
their respective companies.
Copyright Semtech 2000-2001
DOC7-PXZ-P440-DS-111
1
www.semtech.com




UR7HCPXZ-P440 pdf, 반도체, 판매, 대치품
BUILT-IN FEATURES
The PixiPointTM Z enables click,
double-click, MouseWheel action
and slow drag without the need for
special drivers. A standard PS/2
mouse driver can be utilized.
PS/2 COMMUNICATION
At start-up or upon receiving a reset command, the PixiPointTM Z will wait
between 300 and 500 milliseconds before sending an AAh to the host
followed by a device ID of 00h. Then the IC will set itself to its default
values, i.e. Incremental Stream Mode with 1:1 scaling, and a report rate
of 100 Hz. The device will then disable itself until a command is sent from
the host. PixiPointTM Z has responded or until 25 milliseconds have
elapsed.
EXTERNAL PS/2 PORT
The UR7HCPXZ-P440 offers an external PS/2 mouse port. Data from this
port is seamlessly merged with data from the internal pointing device.
External devices, including those utilizing a MouseWheel, can be hot-plug
connected.
ERROR HANDLING
For every correct command or parameter received from the host, the
UR7HCPXZ-P440 sends an Acknowledge (FAh). If an invalid command or
parameter is received, the UR7HCPXZ-P440 issues a Resend Request
(FEh). If an invalid input is again received, the device transmits an Error
Code (FCh) to the host. Both error and Resend request responses are sent
by the device within 25 milliseconds. The host may not issue any new
commands until either the PixiPointTM Z has responded or until 25
milliseconds have elapsed.
Copyright Semtech 2000-2001
DOC7-PXZ-P440-DS-111
4
www.semtech.com

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UR7HCPXZ-P440 전자부품, 판매, 대치품
SEQUENTIAL COMMANDS
Unlike normal commands, sequential commands must be enacted with a
sequence of commands. If the sequence is not consecutive or is incorrect,
the PixiPointTM Z aborts the detection and responds the way it would
normally respond to a command.
The individual commands that comprise a sequential command have been
designed so that the elements of a sequential command can be sent to the
PixiPointTM Z via the standard IBM PS/2 BIOS calls and the device returns a
valid response to the Status Request. This ensures that, if the sequential
command is sent via the BIOS, the status response will be accurately
returned even if the BIOS performs error detection. Thus, a programmer
can have complete control of the mouse without having to access the
device hardware port directly.
The UR7HCPXZ-P440 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 PixiPointTM Z that cause the
device to respond to the last command (Read Status) with alternate
information.
The sequence of commands is as follows.
1. Set Resolution = one count/ mm
2. Set Scaling = 1:1
3. Set Scaling = 1:1
4. Set Scaling = 1:1
5. Read Status
(E8H)
(E6H)
(E6H)
(E6H)
(E9H)
The response to the Read Status Command is in the following format.
Byte 1: Standard Status Information (buttons, scaling, etc.)
Byte 2: Number of mouse buttons (3)
Byte 3: Firmware Revision Number (encoded) or current sampling rate
Copyright Semtech 2000-2001
DOC7-PXZ-P440-DS-111
7
www.semtech.com

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UR7HCPXZ-P440

Advanced Click-to-Select No-DriftTM PS/2 Force Stick Controller

Semtech Corporation
Semtech Corporation
UR7HCPXZ-P440-FA

Advanced Click-to-Select No-DriftTM PS/2 Force Stick Controller

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