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SH1201 の電気的特性と機能

SH1201のメーカーはSemtech Corporationです、この部品の機能は「Force Stick Encoder」です。


製品の詳細 ( Datasheet PDF )

部品番号 SH1201
部品説明 Force Stick Encoder
メーカ Semtech Corporation
ロゴ Semtech Corporation ロゴ 




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SH1201 Datasheet, SH1201 PDF,ピン配置, 機能
PixiPoint® SH1201
Advanced “Click-to-Select”
No-Drift™ Force Stick Encoder
HID & SYSTEM MANAGEMENT PRODUCTS, MOUSECODER® FAMILY
DESCRIPTION
The PixiPoint® SH1201 mouse
encoder is a cost-effective, high-
functionality IC that interfaces a
force-stick sensor to a PS/2 or
serial port. Ideal for laptop or
palmtop use, the low-power
PixiPoint® uses an advanced
www.DataSheeatl4gUo.criotmhm for enhanced motion
control. The IC can be configured
as a standard 3-button mouse or
as a wheel mouse. The IC
provides an extra port for hot-plug
connection of an external PS/2
mouse, including one with wheel
function. The embedded sensor
and the external device can
operate concurrently.
The PixiPoint® includes a signal
conditioning circuit for a low cost,
simple and real estate-saving
implementation. Just a few low-
tolerance external components are
needed.
Typically consuming less than
4.5 mA, the PixiPoint® is ideal for
battery-operated systems.
FEATURES
• Advanced motion control algorithm
provides accurate cursor control
• Can be configured for PS/2 or
RS232 serial communication with
the host
• Can be configured as a standard
3-button mouse or a wheel mouse
• Complies with the Microsoft® Plug
and Play External COM Device
specification
• Click (select), double-click
(execute), and slow drag are
implemented in the IC – no special
driver support is required
• Provides built-in profiles to
interface popular force-stick
sensors from several
manufacturers
• Supports hot-plug connection of a
standard external PS/2 mouse,
with or without wheel function
• Works with standard Windows®
mouse drivers
• Works with most IBM force stick
drivers
• CleanStop™ feature means cursor
stops where it should
• In PS/2 mode, supports all
standard PS/2 commands
• Royalty-free and cost-effective
• Low power consumption:
4.5 mA (typical)
• 2.7 V–5.5 V operation over
extended temperature range
APPLICATIONS
• Notebooks/laptops
• Handhelds
• Keyboards
• Instrumentation
PIN ASSIGNMENTS
PS/2 communication is
bidirectional at 10 Kbps. The
PixiPoint® returns up to 100 mouse
reports per second, and is
compatible with the standard two-
button mouse protocol, the
standard three-button mouse
protocol, and the standard wheel
mouse protocols. It implements all
commands from and to the system
(as defined in the IBM PS/2 mouse
communication protocol).
The PixiPoint® also implements
most of the IBM force stick
extended commands, and works
with most IBM force stick drivers.
32
XP
YM
XM
YP
VREF
_RESET
VSS2
VDD
1
8
9
25
24
_MB/_UB
_LB
_DB
FDA
CDA
XYGSEL
MDAT/RTS
EMCLK
17
16
Semtech, the Semtech logo, PixiPoint, PixiCoder,
MouseCoder, CleanStop, EasyDrag, No-Drift, and
MicroBuddy are marks of Semtech Corporation.
All other marks belong to their respective owners.
Copyright ©1999-2003 Semtech Corporation
SH1201 data sheet v1.12 (2003-04)
1
www.semtech.com

1 Page





SH1201 pdf, ピン配列
FUNCTIONAL DESCRIPTION
The SH1201 consists functionally
of several major sections (see the
block diagram on the previous
page). These include the
PixiPoint® interface, the 16-bit
timer, the oscillator circuit, the host
PS/2 communication port, the host
serial communication port, and the
external PS/2 port. All sections
www.DataSheecto4Um.cmoumnicate with each other and
operate concurrently.
SENSOR SUPPORT
The SH1201 has built-in profiles to
interface with several sensors,
some of which are listed here. A
profile is selected by tying the
SENSSEL line (pin 16) to the
indicated line.
CTS 106 - floating
CTS 109 - ground
CTS 105 - XP (pin 1)
K-Tech 3.2 - YM (pin 2)
SENSOR Z-AXIS SUPPORT
The SH1201 has built-in Z-axis
functionality to recognize click and
double-click on the force stick
itself.
Z-axis functionality depends on an
appropriate resistor Rz at the
sensor input (R4 in the mode
schematics, R4, R12, or R11 in the
evaluation board schematic in this
data sheet) whose value is one half
the resistance of one strain gauge
of the sensor. Omitting this resistor
and leaving this connection open
disables Z-axis functionality. Rz
values:
CTS 106 - 1.6 K
CTS 109 - 1.24 K
CTS 105 - 1.6 K
K-Tech 3.2 - 1.6 K
Copyright ©1999-2003 Semtech Corporation
SH1201 data sheet v1.12 (2003-04)
PIN DEFINITIONS
Mnemonic Pin #
VDD 8
VSS
VSS2
_RESET
_OSCOUT
11
7
6
10
OSCIN
MCLK
MDAT/RTS
EMCLK
EMDAT
TxD
_DB
_LB
_MB/_UB
_RB
AD
SENSSEL
_REGDIS
VREF
XM
XP
YM
YP
ZM
XYGSEL
CDA
FDA
_PS2SEL
OFFSET
SWPWR0
SWPWR1
SWPWR2
9
13
18
17
14
27
22
23
24
25
31
16
28
5
3
1
2
4
32
19
20
21
26
29
12
15
30
Type
P
P
P
I
O
I
I/O (nd)
I/O (nd)
I/O (nd)
I/O (nd)
O
I/O (nd)
I/O (nd)
I/O (nd)
I/O (nd)
AI
I/O (nd)
I/O (nd)
AI
I/O
I/O
I/O
I/O
I/O
I
O
O
I
I/O
I/O
I/O
I/O
Name and Function
Power supply: 2.7 V–5.5 V (depends on host
interface mode)
Ground
Ground
Reset: apply 0V for orderly start-up
Oscillator output: open for external clock input or
one side of the ceramic resonator with built-in load
capacitors
Oscillator input: external clock input or one side of
the ceramic resonator with built-in load capacitors
Host PS/2 clock
Host PS/2 data / serial request-to-send input
external mouse
External mouse clock: PS/2 clock signal from
external mouse
External mouse data: PS/2 data signal from
external mouse
Serial transmit to host: idle high
Down button: active low, strobed sampling
Left button: active low, strobed sampling
Middle/up button: active low, strobed sampling
Right button: active low, strobed sampling
Analog to digital converter input
Sensor select pin: normally left floating
Regulator disable/enable (low = disable)
Reference voltage for built-in A/D
X minus drive pin
X plus drive pin
Y minus drive pin
Y plus drive pin
Z minus drive pin
XY gain 100% floating, 75% tied to ground, 50% tied
to SWPWR2, 125% tied to REGDIS
Coarse digital-to-analog
Fine digital-to-analog
Interface select: tie to ground for PS/2 host, tie to
power (Vcc) for serial host
Offset: resets the offset circuit during inactivity
Switched power driver
Switched power driver: connect to SPWR0
Switched power driver: connect to SPWR0
Note: An underscore before a pin mnemonic denotes an active low signal.
Pin types legend: P = power, AI = analog input; I = input; O = output; I/O = input or
output; I/O (nd) = input or output with N-channel open drain driver
POWER AND EXTERNAL PS/2 SPEED BY HOST INTERFACE
High-speed PS/2 host
interface
4 V–5.5 V power supply
external PS/2 port speed:
100 reports/second maximum
Low-speed PS/2 host
interface
2.7 V–5.5 V power supply
external PS/2 port speed:
60 reports/second maximum
Serial host interface
2.7 V–5.5 V power supply
external PS/2 port speed:
60 reports/second maximum
Note: Embedded (internal)
pointer speed is 100
reports/second maximum for all
interface types
3 www.semtech.com


3Pages


SH1201 電子部品, 半導体
SERIAL DATA REPORTS
In wheel mode, data reports are
always four bytes long.
In 3-button mode, data reports are
four bytes long only if the middle
button is depressed or changing
state; otherwise, data reports are
three bytes long.
www.DataSheeAt4dUa.ctoamreport is sent if motion is
detected, or if buttons are pressed
or released. X and Y motion is
reported relative to the last report
sent, in a two’s complement form
with 8-bit resolution. Therefore,
motion values can range from -128
to +127.
Z3-Z0 is Z-displacement (wheel
value), a 4-bit two’s complement
value from -8 to +7.
Byte 1
b0 X6
b1 X7: MSB of X Data
b2 Y6
b3 Y7: MSB of Y Data
b4 Right button status, 1 = depressed
b5 Left button status, 1 = depressed
b6 Always=1
Byte 2
b0 X0: LSB of X data
b1 X1
b2 X2
b3 X3
b4 X4
b5 X5
b6 Always=0
Byte 3
b0 Y0: LSB of Y data
b1 Y1
b2 Y2
b3 Y3
b4 Y4
b5 Y5
b6 Always=0
Byte 4 (wheel mode)
b0 Z0: LSB of Z data
b1 Z1
b2 Z2
b3 Z3: MSB of Z data
b4 Middle button status; 1=depressed
b5 Always=0
b6 Always=0
b6 Always=0
Byte 4 (3-button mode, only when middle button is depressed or changing state)
b0 Always=0
b1 Always=0
b2 Always=0
b3 Always=0
b4 Always=0
b5 Middle button status; 1=depressed
b6 Always=0
Copyright ©1999-2003 Semtech Corporation
SH1201 data sheet v1.12 (2003-04)
6
www.semtech.com

6 Page



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部品番号部品説明メーカ
SH1201

Force Stick Encoder

Semtech Corporation
Semtech Corporation


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