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SH1211 MouseCoder® Ergonomic Mouse PS/2 and RS232 Encoder Datasheet
Datasheet for Semtech models including: SH1211, MouseCoder, Ergonomic Mouse, PS/2, RS232, Encoder, Semtech, HID, System Management, HulaPoint, Fujitsu Takamisawa, FID-828, Hall-effect sensor, Analog joystick sensor, CTS 252, Switch joystick sensor, FSR sensor, Force Sensing Resistor, Varatouch, MicroPoint, CMOS, 32-pin LQFP, Datasheet, Technical Specification
The DatasheetArchive - Datasheet Search Engine http://www.datasheetarchive.com electronic components, datasheets, data sheet, pdf, datasheetarchive, semiconductors, ics, transistors, diodes, thyristors, specsheet, download, rohs, equivalent, application notes, integrated circuit, free, data book, rfq, datablad The DatasheetArchive [PDF] SH1211 MouseCoder Ergonomic Mouse PS/2 and RS232 Encoder SH1211 serial communication is unidirectional at a fixed speed of. 1200 Baud. PS/2 communication is bidirectional at 10 Kbps. The. SH1211 is a CMOS device.
275036 SH1211 MouseCoder® Ergonomic Mouse
PS/2 and RS232 Encoder
HID & SYSTEM MANAGEMENT PRODUCTS, MOUSECODER® FAMILY
PRELIMINARY
DESCRIPTION
FEATURES
The SH1211 MouseCoder® is an easy-to-use single-chip multimouse encoder with an advanced motion algorithm for accurate cursor control. The SH1211 offers low power consumption in a smallfootprint package, and connects to a host serial or a PS/2 mouse port.
The SH1211 is designed for use with a Fujitsu Takamisawa FID-828 Hall-effect sensor (HulaPointTM), a resistive analog joystick sensor (like the CTS 252), a switch joystick sensor, an FSR sensor, or a Varatouch MicroPointTM sensor, as well as others.
· Advanced motion-control algorithm for accurate cursor control
· Low power consumption in a 3.3 to 5.5 volt operating range
· Compatible with standard twobutton, three-button, and wheel mice
· RS232 or PS/2 host interface
· Works with a Hall-effect sensor · Works with a resistive analog
joystick sensor · Works with a switch joystick sensor · Works with an FSR sensor · Works with a Varatouch
MicroPointTM sensor · Available in a small 32-pin plastic
LQFP package
APPLICATIONS
· Embedded HulaPointsTM · Industrial panels · Joystick applications
PIN ASSIGNMENTS
· Industrial keyboards · Instrumentation · Gaming
SEN15 INTSEL
TxD SCLK SEN04 SEN05 SEN06 SEN07
The SH1211 provides an external port for hot-plug connection of a PS/2 mouse, including one with wheel function.
SH1211 serial communication is unidirectional at a fixed speed of 1200 Baud. PS/2 communication is bidirectional at 10 Kbps. The SH1211 is a CMOS device operating at 4 MHz. It can return mouse reports at the rate of 100 per second. The SH1211 is compatible with the standard twobutton mouse protocol, the standard three-button mouse protocol, and standard wheel mouse protocols. It implements all commands from and to the system, as defined in the IBM PS/2 mouse communication protocol.
SEN10 SEN09 EMDAT MCLK SEN08 VSS _OSCOUT OSCIN
32
1
SEN00 SEN01 SEN02 SEN03
VREF _RESET
VSS2 VDD
8
9
SH1211-FG LQFP
25 24
SEN14 SEN13 SEN12 SENSEL2 SEN11 MDAT/RTS SENSEL1 EMCLK
17
16
The SH1211's low power consumption makes it ideal for battery operated systems.
Semtech, the Semtech logo, MouseCoder, and HulaPoint are marks of Semtech Corporation. Force Sensing Resistor and FSR are marks of Interlink Electronics, Inc. MicroPoint is a mark of Varatouch Technology, Inc. All other marks belong to their respective owners.
Copyright ©1995-2003 Semtech Corporation
1
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
ORDERING CODE SH1211-FG LQFP 32-pin, 0.8 mm pitch, TA = -20°C to +85°C EVK-SH1211 Evaluation kit
FUNCTIONAL DESCRIPTION
The SH1211 consists functionally of five major sections (see block diagram below). These are the Sensor Interface, the 16-bit Timer, the Oscillator Circuit, the PS/2 Communication Port and the RS232 Communication Port. All sections communicate with each other and operate concurrently.
BLOCK DIAGRAM
Data Buffer
MCLK MDAT
TxD RTS
Host PS/2 Communication
Port
Host Serial Communication
Port
EMCLK EMDAT
RESET
External PS/2 Port
Power-on Reset
Copyright ©1995-2003 Semtech Corporation
2
SH1211 data sheet v1.10 (2003-07)
Left, Middle/Up, Right, & Down
Buttons
4
Switch Interface X Input Y Input Control
Sensor Interface 16-bit Timer
Analog Signal Input
Sensor Power Strobe
Oscillator Circuit 2 OSCIN-OSCOUT
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MOUSE EMULATION
The SH1211 emulates either a standard 3-button mouse or a standard wheel mouse. The state of the button configuration pin (BCONF, pin 20) determines which mouse type is emulated. The pin left floating specifies 3-button mode, the pin tied to ground specifies wheel mode.
In 3-button mode, the left, right and middle buttons are implemented.
In wheel mode, the left, right, up, and down buttons are implemented; pressing up and down buttons together emulates a middle-button press.
POWER CONSUMPTION
The SH1211 typically consumes less than 3 mA in standby for HulaPointTM or analog joystick sensors and less than 1 µA for other sensors.
EXTERNAL PS/2 PORT
The SH1211 provides an external PS/2 mouse port. Data from this port is seamlessly merged with data from the embedded sensor. External mice, including those with a mouse wheel, can be hot-plug connected.
HOST INTERFACE
The SH1211 communicates with the host system using either PS/2 or serial. The state of the interface select pin (INTSEL, pin 26) determines which interface is used. If the pin is tied to ground, PS/2 is used; if it is tied to power (Vcc), serial is used.
SENSOR CONFIGURATIONS The SH1211 has built-in support applicable to many sensors, including the following:
HulaPointTM Fujitsu Takamisawa FID-828 Hall-effect sensor Analog joystick sensor such as the CTS 252
Switch joystick sensor FSRTM sensor (Force Sensing ResistorTM, Interlink Electronics)
Varatouch MicroPointTM sensor
The states of the sensor select pins 18 and 21 (SENSEL1, SENSEL2) indicate which sensor is being used.
The name, definition and use of the 16 sensor pins (SEN00-SEN15: pins 14, 29-32, 15, 16, 20, 22-25) vary depending on which sensor is being used. Refer to the schematics and pin definitions in this data sheet for specifics.
Copyright ©1995-2003 Semtech Corporation
3
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
HULAPOINTTM & ANALOG
These pin descriptions and the schematic on the next page apply to a circuit with he Fujitsu Takamisawa FID-828 Hall-effect sensor (HulaPointTM) or an analog joystick sensor (like the CTS 252 resistive sensor).
With a HulaPointTM or analog joystick sensor, the SH1211 supports wait mode and typically consumes less than 3 mA in standby.
See also the HulaPointTM sensor orientation diagram toward the end of this data sheet.
PIN DESCRIPTION NOTES
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
The internal oscillator has a built-in feedback resistor. Only one external component is needed for clock generation. Semtech recommends a 4.00 MHz ceramic resonator with built-in load capacitors (AVX PBRC-4.00BR or equivalent).
The button inputs (pins 22-25) have built-in pull-up resistors. No additional components are required. However, if high levels of ESD and EMI are expected, then series protection resistors (47 Ohms to 1K Ohms) are recommended between the switches and the switch inputs on the SH1211.
PINS FOR HULAPOINTTM & ANALOG JOYSTICK SENSOR CIRCUITS
Pin Numbers
Mnemonic
Pin
Type Name and Function
Power VDD
VSS2, VSS
8
P
7, 11 P
Power supply: +5V Ground
Reset _RESET
6
I
Reset: apply 0V for orderly start-up
Oscillator
OSCIN
9
I
_OSCOUT
10
O
Oscillator input: external clock input or one side of the ceramic resonator with built-in load capacitors Oscillator output: open for external clock input or one side of the ceramic resonator with built-in load capacitors
Host
INTSEL
26
I
Host interface select: tie to ground for PS/2 host, tie to
power (VCC) for serial host
MCLK
13
I/O (nd) Host PS/2 clock
MDAT/RTS
19
I/O (nd) Host PS/2 data / serial ready-to-send
TxD
27
O
Serial transmit to host: idle high; in serial mode,
connect to host RxD; in PS/2 mode, leave floating
External PS/2
EMCLK
17
EMDAT
14
I/O (nd) I/O (nd)
External mouse clock: PS/2 clock signal from external mouse External mouse data: PS/2 data signal from external mouse
Select SENSEL1-2
18, 21 I
Sensor select; for HulapointTMor analog joystick, leave both floating
Reference
VREF
5
AI
Reference voltage for built-in A/D: for HulaPoint sensor,
connect to SPWR0
Sensor
SEN00-3
1-4
/SWPWR0-3
SEN04-5
29, 30
/SWPWR4-5
SEN06/YAD
31
SEN07/XAD
32
SEN08/_XYSWP 12
SEN09/_XINV 15
SEN10/_YINV 16
SEN11/BCONF 20
SEN12/_DB
22
SEN13/_LB
23
SEN14/_MB/_UB 24
SEN15/_RB
25
I/O
Switched power drivers; connect together
I/O
Switched power driver; connect to SWPWR0
AI AI I
I
I
I
I/O (nd) I/O (nd) I/O (nd) I/O (nd)
Y-axis analog to digital converter input X-axis analog to digital converter input Leave floating for default X, Y axes; connect to ground to swap X and Y axes Leave floating for default X direction; connect to ground for reversed X direction Leave floating for default Y direction; connect to ground for reversed Y direction Button configuration: leave floating for standard 3-button mouse mode, tie to ground for up/down/wheel-mouse mode Down button: active low, strobed sampling Left button: active low, strobed sampling Middle button: active low, strobed sampling Right button: active low, strobed sampling
Reserved
RSVD
28
Leave floating
Copyright ©1995-2003 Semtech Corporation
4
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
SCHEMATIC FOR THE SH1211 MOUSECODER® WITH ANALOG JOYSTICK SENSOR
SW1 Down
SW2 Left
SW3
SW4
Middle/Up Right
GND
GND
GND
GND
JP2
1 2 3 4
FFCC4
GND
25
INTSEL 26
TXD
27
28
29
30
31
32
RB PS2SEL TXD SCLK SWPWR4 SWPWR5 YAD XAD
MB / UB 24
C3 0.01uF
GND
1 SWPWR0 2 SWPWR1 3 SWPWR2 4 SWPWR3 5 VREF 6 RESET 7 VSS2 8 VDD
LB 23
DB 22
CON2 J1
GND
1
2
SH1
SH2
VCC
GND
M_DATA
EXT_M_CLOCK
J2 CON2
J3 CON2
EMCLK 17
1 2 1 2
SENSEL1 18
MDAT 19
BCONF 20
SENSEL2 21
U1
SH1211-FG 32-Pin LQFP
YINV XINV EMDAT MCLK XYSWP VSS OSCOUT OSCIN
16 GND
15
14
13
12
11
10 _OSCOUT
9 OSCIN
GND
EXT_M_DATA M_CLOCK J4 1 2 GNDCON2
Y1 4.00 MHz AVX# PBRC-4.00BR or eqivalent
GND
VCC
C4 100 nF
C5
10 µF 1206
GNDGND
GND
R1 100K
SH6
C6
1 µF 1206
GND
VCC
L1 12uH
JP1 MDIN6_SH 6 4 2
C1
5 47pF
3 1
GND
C2
Mount i ng hol es
47pF
SHIELD 7 8
VCC
M_DATA M_CLOCK
JP3
1
PS/ 2 DATA
2
SHI EL D
3
GND
4
+5 V
5
PS/ 2CL OCK
GND
S5B_PH_K
VCC
RTS CTS INTSEL TXD
GND
J5
1 2 3 4 5 6 7 8
CON8
Copyright ©1995-2003 Semtech Corporation
5
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SH1211 data sheet v1.10 (2003-07)
FSRTM SENSOR
These pin descriptions and the schematic on the next page apply to a circuit with an Interlink Electronics Force Sensing ResistorTM (FSRTM) sensor.
With an FSR sensor, the SH1211 supports stop mode and typically consumes less than 1 µA in standby.
PIN DESCRIPTION NOTES
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
The internal oscillator has a built-in feedback resistor. Only one external component is needed for clock generation. Semtech recommends a 4.00 MHz ceramic resonator with built-in load capacitors (AVX PBRC-4.00BR or equivalent).
The button inputs (pins 22-25) have built-in pull-up resistors. No additional components are required. However, if high levels of ESD and EMI are expected, then series protection resistors (47 Ohms to 1K Ohms) are recommended between the switches and the switch inputs on the SH1211.
PINS FOR FSRTM SENSOR CIRCUITS
Pin Numbers
Mnemonic
Pin
Type Name and Function
Power VDD
VSS2, VSS
8
P
7, 11 P
Power supply: +5V Ground
Reset _RESET
6
I
Reset: apply 0V for orderly start-up
Oscillator
OSCIN
9
I
_OSCOUT
10
O
Oscillator input: external clock input or one side of the ceramic resonator with built-in load capacitors Oscillator output: open for external clock input or one side of the ceramic resonator with built-in load capacitors
Host
INTSEL
26
I
Host interface select: tie to ground for PS/2 host, tie to
power (VCC) for serial host
MCLK
13
I/O (nd) Host PS/2 clock
MDAT/RTS
19
I/O (nd) Host PS/2 data / serial ready-to-send
TXD
27
O
Serial transmit to host: idle high; in serial mode,
connect to host RxD; in PS/2 mode, leave floating
External PS/2
EMCLK
17
EMDAT
14
I/O (nd) I/O (nd)
External mouse clock: PS/2 clock signal from external mouse External mouse data: PS/2 data signal from external mouse
Select SENSEL1-2
18, 21 I
Sensor select; for FSR sensor, tie SESEL1 to ground and leave SENSEL2 floating
Reference
VREF
5
AI
Reference voltage for built-in A/D: for FSR sensor,
connect to VDD
Sensor SEN00/FSR_E SEN01/FSR_N SEN02/FSR_W SEN03/FSR_S SEN04, SEN07-SEN10
SEN05/TOUCH SEN06/SENSE SEN11/BCONF
1 2 3 4 29, 32, 12, 15, 16 30 31 20
SEN12/_DB
22
SEN13/_LB
23
SEN14/_MB/_UB 24
SEN15/_RB
25
I/O
East
I/O
North
I/O
West
I/O
South
I/O
Reserved, leave floating
AI AI I
I/O (nd) I/O (nd) I/O (nd) I/O (nd)
Touch Sense Button configuration: leave floating for standard 3-button mouse mode, tie to ground for up/down/wheel-mouse mode Down button: active low, strobed sampling Left button: active low, strobed sampling Middle button: active low, strobed sampling Right button: active low, strobed sampling
Reserved
RSVD
28
Reserved, leave floating
Copyright ©1995-2003 Semtech Corporation
6
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
SCHEMATIC FOR THE SH1211 MOUSECODER® WITH FSRTM SENSOR
SW1 Down
SW2 Left
SW3
SW4
Middle/Up Right
GND
GND
GND
GND
25
INTSEL 26
TXD
27
28
29
30
31
32
RB PS2SEL TXD SCLK RSVD TOUCH SENSE FSR_E
FSR_E FSR_N FSR_IN FSR_W FSR_S
VDD
R14 100K
C4 3.3nF
GND
Q4 NPN R16 1M
R15 10K
GND
1 FSR_N 2 FSR_W 3 FSR_S 4 RSVD 5 VREF 6 RESET 7 VSS2 8 VDD
MB / UB 24
LB 23
DB 22
1
2
CON2 J1
GND
GND
SH1
SH2
VCC
GND
M_DATA
EXT_M_CLOCK
EMCLK 17
SENSEL1 18
MDAT 19
BCONF 20
SENSEL2 21
U1
SH1211-FG 32 Pin LQFP
RSVD 16 RSVD 15 EMDAT 14 MCLK 13 RSVD 12
VSS 11 OSCOUT 10
OSCIN 9
EXT_M_DATA M_CLOCK
_OSCOUT Y1
OSCIN
4.00 MHz GND AVX# PBRC-4.00BR
or eqivalent
VCC
C4 100 nF
C5
10 µF 1206
GNDGND
GND
R1 100K
SH6
GND
C6 1 µF
1206
VCC
L1 12uH
JP1 MDIN6_SH 6 4 2
C1
5 47pF
3 1
GND
C2
47pF
Mounting holes
VCC
M_DATA M_CLOCK
JP3
1
PS/ 2 DATA
2
SHIELD
3
GND
4
+5 V
5
PS/ 2CL OCK
GND
S5B_PH_K
VCC
RTS CTS INTSEL TXD
GND
J5
1 2 3 4 5 6 7 8
CON8
SHIELD 7 8
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Copyright ©1995-2003 Semtech Corporation
7
SH1211 data sheet v1.10 (2003-07)
SWITCH JOYSTICK SENSOR
These pin descriptions and the schematic on the next page apply to a circuit with a switch joystick sensor.
With a switch joystick sensor, the SH1211 supports stop mode and typically consumes less than 1 µA in standby.
PIN DESCRIPTION NOTES
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
The internal oscillator has a built-in feedback resistor. Only one external component is needed for clock generation. Semtech recommends a 4.00 MHz ceramic resonator with built-in load capacitors (AVX PBRC-4.00BR or equivalent).
Direction switched\s and button switches share the same center contact pad. All sensor lines are connected to the SH1211 with no extra parts.
PINS FOR SWITCH JOYSTICK SENSOR CIRCUITS
Pin Numbers
Mnemonic
Pin
Type Name and Function
Power VDD
VSS2, VSS
8
P
7, 11 P
Power supply: +5V Ground
Reset _RESET
6
I
Reset: apply 0V for orderly start-up
Oscillator
OSCIN
9
I
_OSCOUT
10
O
Oscillator input: external clock input or one side of the ceramic resonator with built-in load capacitors Oscillator output: open for external clock input or one side of the ceramic resonator with built-in load capacitors
Host
_INTSEL
26
I
Host interface select: tie to ground for PS/2 host, tie to
power (VCC) for serial host
MCLK
13
I/O (nd) Host PS/2 clock
MDAT/RTS
19
I/O (nd) Host PS/2 data / serial ready-to-send
TxD
27
O
Serial transmit to host: idle high; in serial mode,
connect to host RxD; in PS/2 mode, leave floating
External PS/2
EMCLK
17
EMDAT
14
I/O (nd) I/O (nd)
External mouse clock: PS/2 clock signal from external mouse External mouse data: PS/2 data signal from external mouse
Select SENSEL1-2
18, 21 I
Sensor select; for switch sensor, tie both to ground
Reference
VREF
5
AI
Reference voltage for built-in A/D: for switch sensor,
connect to VDD
Sensor SEN00/BT_N SEN01/BT_NE SEN02/BT_E SEN03/BT_SE SEN04/BT_S SEN05/BT_SW SEN06/BT_W SEN07/BT_NW SEN08/ BT_CENTER SEN09/BT_L SEN10/BT_R SEN11 /BT_COMMON SEN12-15
1 2 3 4 29 30 31 32 12
15 16 20
22, 23, 24, 25
I/O I/O I/O I/O I/O I/O I/O I/O I/O (nd)
Connect to north contact pad Connect to northeast contact pad Connect to east contact pad Connect to southeast contact pad Connect to south contact pad Connect to southwest contact pad Connect to west contact pad Connect to northwest contact pad Connect to center contact pad, works as tap button
I/O (nd) Left button
I/O (nd) Right button
I
Connect to common contact pad
Reserved, leave floating
Reserved
RSVD
28
Leave floating
Copyright ©1995-2003 Semtech Corporation
8
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
SCHEMATIC FOR THE SH1211 MOUSECODER® WITH SWITCH JOYSTICK SENSOR 1 2 3 4 5 6 7
J4 1 2 3 4 5 6 7 8 9 10 11 12 13 14
CON14
J1 CON7
25
INTSEL 26
TXD
27
28
29
30
31
32
RSVD PS2SEL TXD SCLK BT_S BT_SW BT_W BT_NW
1 BT_N 2 BT_NE 3 BT_E 4 BT_SE 5 VREF 6 RESET 7 VSS2 8 VDD
RSVD 24 RSVD 23 RSVD 22 SENSEL2 21 BT_COMMON 20 MDAT 19 SENSEL1 18 EMCLK 17
GND
SH1
SH2
VCC
GND
M_DATA
EXT_M_CLOCK
U1
SH1211-FG 32-Pin LQFP
BT_R BT_L EMDAT MCLK BT_CENTER VSS OSCOUT OSCIN
16
15
14
EXT_M_DATA
13
M_CLOCK
12
11 OSCOUT
10
9 OSC IN Y1 4.00 MHz
AVX# PBRC-4.00BR GND or eqivalent
VCC
C4 100 nF
C5 10 µF
1206
GNDGND
GND
R1 100K
SH6
GND
C6 1 µF
1206
VCC
L1 12uH
JP1 MDIN6_SH 6 4 2
C1
5 47pF
3 1
GND
C2
47pF
Mounting holes
SHIELD 7 8
VCC
M_DATA M_CLOCK
JP3
1
PS/ 2 DATA
2
S HI E L D
3
GND
4
+5 V
5
PS/ 2CL OCK
GND
S5B_PH_K
VCC
RTS CTS INTSEL TXD
GND
J5
1 2 3 4 5 6 7 8
CON8
Copyright ©1995-2003 Semtech Corporation
9
www.semtech.com
SH1211 data sheet v1.10 (2003-07)
MICROPOINTTM SENSOR
These pin descriptions and the schematic on the next page apply to a circuit with a Varatouch MicroPointTM sensor.
With a Varatouch MicroPointTM sensor, the SH1211 supports stop mode and typically consumes less than 1 µA in standby.
PIN DESCRIPTION NOTES
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
The internal oscillator has a built-in feedback resistor. Only one external component is needed for clock generation. Semtech recommends a 4.00 MHz ceramic resonator with built-in load capacitors (AVX PBRC-4.00BR or equivalent).
The button inputs (pins 22-25) have built-in pull-up resistors. No additional components are required. However, if high levels of ESD and EMI are expected, then series protection resistors (47 Ohms to 1K Ohms) are recommended between the switches and the switch inputs on the SH1211.
PINS FOR MICROPOINTTM SENSOR CIRCUITS
Pin Numbers
Mnemonic
Pin
Type Name and Function
Power VDD
VSS2, VSS
8
P
7, 11 P
Power supply: +5V Ground
Reset _RESET
6
I
Reset: apply 0V for orderly start-up
Oscillator
OSCIN
9
I
_OSCOUT
10
O
Oscillator input: external clock input or one side of the ceramic resonator with built-in load capacitors Oscillator output: open for external clock input or one side of the ceramic resonator with built-in load capacitors
Host
_INTSEL
26
I
Host interface select: tie to ground for PS/2 host, tie to
power (VCC) for serial host
MCLK
13
I/O (nd) Host PS/2 clock
MDAT/RTS
19
I/O (nd) Host PS/2 data / serial ready-to-send
TXD
27
O
Serial transmit to host: idle high; in serial mode,
connect to host RxD; in PS/2 mode, leave floating
External PS/2
EMCLK
17
EMDAT
14
I/O (nd) I/O (nd)
External mouse clock: PS/2 clock signal from external mouse External mouse data: PS/2 data signal from external mouse
Select SENSEL1-2
18, 21 I
Sensor select; for MicroPointTM sensor, leave SENSEL1 floating and tie SENSEL2 to ground
Reference
VREF
5
AI
Reference voltage for built-in A/D: for MicroPointTM
sensor, connect to VDD
Sensor
SEN00/SOUTH 1
SEN01/NORTH 2
SEN02/EAST 3
SEN03/RSVD 4
SEN04/
29
PUPDRV
SEN05/TOUCH 30
SEN06/SENSE 31
SEN07/WEST 32
SEN08-09
12, 15
SEN10/SWITCH 16
SEN11/BCONF 20
SEN12/_DB
22
SEN13/_LB
23
SEN14/_MB/_UB 24
SEN15/_RB
25
I/O I/O I/O
I/O
AI AI I/O I/O I/O I
I/O (nd) I/O (nd) I/O (nd) I/O (nd)
West South North Reserved, leave floating Pull-up driver: connect to Touch and Sense through a 500 KOhm resistor Touch Sense West Reserved, leave floating Switch Button configuration: leave floating for standard 3-button mouse mode, tie to ground for up/down/wheel-mouse mode Down button: active low, strobed sampling Left button: active low, strobed sampling Middle button: active low, strobed sampling Right button: active low, strobed sampling
Reserved
RSVD
28
Reserved, leave floating
Copyright ©1995-2003 Semtech Corporation
10
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
CON2 J1
2
1
GND
GND
SH1
SH2
VCC
GND
M_DATA
VCC
L1 12uH
www.semtech.com
SCHEMATIC FOR THE SH1211 MOUSECODER® WITH VARATOUCH MICROPOINTTM SENSOR
SW1 Down
SW2 Left
SW3
SW4
Middle/Up Right
GND
GND
GND
GND
R4 500K
C3 47pF GND
25
INTSEL 26
TXD
27
28
29
30
31
32
RB PS2SEL TXD SCLK PUPDRV TOUCH SENSE WEST
EAST
NORTH
SOUTH
SWITCH
JOYSTIC
WEST
1 WEST 2 NORTH 3 EAST 4 JOYSTICK 5 SOUTH 6SWITCH
JP6 ON BOARD SENSOR PCB CON_1X6
JP7 CON_1X6
1
2
3
4
5
6
MICROPOINT
1 SOUTH 2 NORTH 3 EAST 4 RSVD 5 VREF 6 RESET 7 VSS2 8 VDD
MB / UB 24
LB 23
DB 22
EXT_M_CLOCK
EMCLK 17
SENSEL1 18
MDAT 19
BCONF 20
SENSEL2 21
U1
SH1211-FG 32-Pin LQFP
SWITCH 16 RSVD 15
EMDAT 14 MCLK 13 RSVD 12 VSS 11
OSCOUT 10 OSCIN 9
_OSCOUT
OSCIN 4.00 MHz GND AVX# PBRC-4.00BR or eqivalent
EXT_M_DATA M_CLOCK
SHIELD 7 8
JP1
MDIN6_SH
6
5
4
3
2
1
C1 47pF GND
C2
Mounting holes
47pF
VCC
C4 100 nF
C5
10 µF 1206
GNDGND
GND
SH6
R1 100K
C6 1 µF
1206
GND
VCC
M_DATA M_CLOCK
JP3
1
PS/2 DATA
2
SHIELD
3
GND
4
+5V
5
PS/2CLOCK
GND
S5B_PH_K
VCC
RTS CTS INTSEL TXD
GND
J5
1 2 3 4 5 6 7 8
CON8
11
SH1211 data sheet v1.10 (2003-07)
Copyright ©1995-2003 Semtech Corporation
SERIAL HARDWARE
The TxD and RTS lines are CMOS logic-level signals, suitable for direct connection to the pins of an UART. Interfacing via the RS-232 port requires an addition of an inverting driver and receiver.
SERIAL COMMUNICATION Communication through the serial port is uni-directional at a fixed speed of 1200 Baud, 7N1 protocol (7 data bits, 1 stop bit, no parity check).
The host can reset the device at any time by setting the RTS line high. When RTS is set low after a delay of at least 100 ms, the SH1211 responds with two identification characters. The SH1211's reponse depends on its mode, wheel mode or 3-button mode, as determined by the state of the button configuration pin (BCONF, pin 20).
Wheel mode
If the SH1211 is in wheel mode, then when RTS is set low after a delay of at least 100 ms, the SH1211 responds with the two identification characters "MZ" (0x4D, 0x5A); they are followed by a zero motion report consisting of the four bytes 0x40, 0x00, 0x00, 0x00, and then by the plug-and-play string:
(vvSTH1211\\MOUSE\PNP0F0A\HULAcc)
This plug-and-play string is a sequence of ASCII characters with their codes reduced by 0x20. Note that vv represents a 2-byte version number, and cc is a 2-byte checksum. For further information, please refer to the Microsoft Plug and Play External COM Device Specification:
http://www.microsoft.com/hwdev/resources/specs/pnpcom.asp
3-button mode
If the SH1211 is in 3-button mode, then when RTS is set low after a delay of at least 100 ms, the SH1211 responds with the two identification characters "M3" (0x4D, 0x33); they are followed by a zero motion report consisting of the four bytes 0x40, 0x00, 0x00, 0x00, and then by the plugand-play string:
(vvSTH1211\\MOUSE\PNP0F0A\HULAcc)
This plug-and-play string is a sequence of ASCII characters with their codes reduced by 0x20. Note that vv represents a 2-byte version number, and cc is a 2-byte checksum. For further information, please refer to the Microsoft Plug and Play External COM Device Specification:
http://www.microsoft.com/hwdev/resources/specs/pnpcom.asp
Copyright ©1995-2003 Semtech Corporation
12
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
SERIAL COMMUNICATION (CONT'D)
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.
A data report 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 range from -128 to +127.
Z3-Z0 is Z-displacement (wheel value), a 4-bit two's complement value ranging from -8 to +7.
SERIAL DATA REPORT
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 b1 b2 b3 b4 b5 b6
X0: LSB of X data X1 X2 X3 X4 X5 Always=0
Byte 3
b0 b1 b2 b3 b4 b5 b6 Byte 4 (wheel mode)
Y0: LSB of Y data Y1 Y2 Y3 Y4 Y5 Always=0
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
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 ©1995-2003 Semtech Corporation
13
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
PS/2 COMMUNICATION
At start-up or reset, the SH1211 waits up to 500 milliseconds, then sends 0xAA to the host, followed by a device ID of 0x00. Then the SH1211 sets itself to its default values: incremental stream mode with 1:1 scaling, and a report rate of 100 Hz. The SH1211 then disables itself until a command is received from the host.
PS/2 REPORTS
The adjacent list shows the PS/2 report formats.
In the data report, each of the two position values (X and Y) is expressed as a 9-bit two's complement integer with the most significant bit (the sign bit) stored separately in byte 1. Z value (wheel or scroll) is expressed as an 8-bit two's complement integer.
If there is an overflow of the accumulator, the maximum positive or negative count is reported and the corresponding overflow bit is set.
PS/2 ERROR HANDLING
For every correct command or parameter received from the host, the SH1211 sends an acknowledge (0xFA). If an invalid command or parameter is received, the SH1211 issues a resend request (0xFE). If an invalid input is again received, the device transmits an error code (0xFC) 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 SH1211 has responded or 25 milliseconds have elapsed.
PS/2 DATA REPORT
Byte 1
b0
Left Button status
1 = depressed
b1
Right Button Status
1 = depressed
b2
Middle Button Status
1 = depressed
b3
Reserved
Always = 1
b4
X8: MSB of X data, sign bit 1 = negative
b5
Y8: MSB of Y data, sign bit 1 = negative
b6
X data overflow
1 = overflow
b7
Y data overflow
1 = overflow
Byte 2
b0
X0: LSB of X data
b1
X1
b2
X2
b3
X3
b4
X4
b5
X5
b6
X6
b7
X7
Byte 3
b0
Y0: LSB of Y data
b1
Y1
b2
Y2
b3
Y3
b4
Y4
b5
Y5
b6
Y6
b7
Y7
Byte 4 (for wheel function; sent only if output of Z data is enabled by the driver)
b0
Z0: LSB of Z data
b1
Z1
b2
Z2
b3
Z3
b4
Z4
b5
Z5
b6
Z6
b7
Z7: MSB or Z data, sign bit
PS/2 STATUS REPORT
Byte 1 b0 b1 b2 b3 b4 b5 b6 b7
Byte 2 b0 - 1 b2 - 7
Byte 3 b0-7
Right button
1 = depressed
Middle button
1 = depressed
Left button
1 = depressed
Reserved
Always = 0
Scaling - 1:1 (0) / 2:1 (1)
Disable - (0) / enable (1)
Stream - (0) / prompt (1) mode
Always = 0
Current resolution setting
Always = 0
Current sampling rate
Copyright ©1995-2003 Semtech Corporation
14
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
COMMANDS FROM PS/2 HOST
The Set Default Status Command (0xF6) re-initializes the device to its condition at power-up.
When the Reset Command (0xFF) is received, the SH1211 sets the following default parameters: incremental stream mode, 1:1 scaling, report rate of 100 Hz, and disabled. It then sends 0xAA to the host followed by a device ID of 0x00.
The host sends the Resend Last Data Stream Command (0xFE) when it detects an error in any SH1211 transmission. The device then resends the last output data packet to the host. This transmission occurs after a SH1211 transmission, and before the host enables the interface allowing the next SH1211 output.
The Disable Command (0xF5) stops the device from transmitting all reports. However, the mode does not change; the SH1211 is still able to respond to commands. If the disable command is issued while the device is transmitting a report, the SH1211 immediately stops the transmission and disables itself.
The Reset Echo Mode Command (0xEC) returns the device to its previous mode, and is disabled.
The Set Prompt (Remote) Mode Command (0xF0) sets the device to Prompt Mode. Data values are then only reported in response to a Read Report Command (0xEB).
If the Set Echo Mode Command (0xEE) is received, the SH1211 immediately returns any data bytes except 0xFF or 0xEC.
If the SH1211 is in incremental stream mode, the Enable Command (0xF4) allows it to begin data transmission. If the device is in prompt mode, the enable command only updates the internal status of the SH1211.
The SH1211 responds to the Set Sampling Rate Command (0xF3) in both stream and prompt modes but only updates its internal status if this command is enacted while the device is in stream mode.
The SH1211 responds to the Read Device Type Command (0xF2) with the device ID of 0x00.
The Read Report Command (0xEB) prompts the SH1211 for a report. The report occurs even if the device has not moved or if the status of the switches did not change.
The Set Incremental Stream Mode Command (0xEA) sets the SH1211 to stream mode and disables the device.
The Status Request Command (0xE9) returns a 3-byte status report.
The Set Resolution Command (0xE8) controls resolution, the Set 2:1 Scaling Command (0xE7) enables a coarse/fine tracking response, and the Set 1:1 Scaling Command (0xE6) enables the values of movements to be transmitted to the host without any scaling. Due to Semtech's advanced motion algorithm, set resolution and scaling commands are acknowledged and reported as activated, but their contents are ignored.
Copyright ©1995-2003 Semtech Corporation
15
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
HULAPOINTTM SENSOR ORIENTATION The SH1211 has three pins that determine sensor orientation- X-invert (XINV, pin 15), Y-invert (YINV, pin 16), and XY swap (XYSWP, pin 12)- allowing eight orientation schemes. The diagrams below show two of these orientation schemes, using the HulaPointTM Fujitsu Takamisawa Hall-effect sensor (FID-828). Default sensor orientation
Sensor orientation with both X and Y directions inverted
Copyright ©1995-2003 Semtech Corporation
16
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
MECHANICALS FOR THE SH1211 MOUSECODER®
HD D
32
25
e F
1
24
E HE
y b
8
L1
9
17 16
b2
e
A1
A2
L Detail F A
MD
I2
ME
c
Symbol
A A1 A2 b c D E e HD HE L L1 y
b2 I2 MD ME
Dimension in Millimeters
Min Nom Max
1.7
0
0.1
0.2
1.4
0.3
0.35 0.45
0.105 0.125 0.175
6.9
7.0
7.1
6.9
7.0
7.1
0.8
8.8
9.0
9.2
8.8
9.0
9.2
0.3
0.5
0.7
1.0
0.1
0
10
0.5
1.0
7.4
7.4
Recommended PCB Footprint
Copyright ©1995-2003 Semtech Corporation
17
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
ELECTRICAL SPECIFICATIONS FOR THE SH1211 MOUSECODER®
Absolute maximum ratings
Ratings Supply voltage Input voltage Current drain per pin (not including VSS or VDD) Operating temperature SH1211 Storage temperature range ESD rating (human body model)
Symbol VDD VIN I
TA
TSTG VESD
Value -0.3 to 7.0 VSS -0.3 to VDD +0.3 20
TLOW to THIGH -20 to +85 -40 to +125 2.0
Unit V V mA
°C °C °C kV
DC electrical characteristics, temperature range = TLOW to THIGH unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Supply voltage
3.3
5.0
5.5
Output voltage (10 µA load)
VOH
VDD0.1
VOL
0.1
Input high voltage
VIH
0.8VDD
VDD
Input low voltage
VIL
VSS
0.2VDD
Input current
IIN
+/- 1
Supply current
(VDD=5.0 VDC+/-10%, VSS=0)
IDD
3.0
TBD
Unit V V
V V µA
mA
Control timing (VDD = 5.0 VDC +/-10%, VSS = 0 VDC, temperature range = TLOW to THIGH unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Unit
Frequency of operation
Crystal option
fOSC
4.0
MHz
External clock option
fOSC
4.0
MHz
Copyright ©1995-2003 Semtech Corporation
18
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
This Page Left Intentionally Blank
Copyright ©1995-2003 Semtech Corporation
19
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
For sales information and product literature, contact:
Semtech Corporation Human Interface Device (HID) and System Management Division 200 Flynn Road Camarillo, CA 93012-8790 sales@semtech.com http://www.semtech.com/ (805)498-2111 Telephone (805)498-3804 Fax
Copyright ©1995-2003 Semtech Corporation. All rights reserved. Semtech, the Semtech logo, MouseCoder, and HulaPoint are marks of Semtech Corporation. Force Sensing Resistor and FSR are marks of Interlink Electronics, Inc. MicroPoint is a mark of Varatouch Technology, Inc. All other marks belong to their respective owners.
LIMITED LICENSE GRANTED: NO WARRANTIES MADE This specification is provided "as is" with no warranties whatsoever including any warranty of merchantability, fitness for any particular purpose, or any warranty otherwise arising out of any proposal, specification or sample. Any suggestions or comments by Semtech concerning use of this product are opinion only, and Semtech makes no warranty as to results to be obtained in any specific application. A license is hereby granted to reproduce and distribute this specification for internal use only. No other license, expressed or implied to any other intellectual property rights is granted or intended hereby. Authors of this specification disclaim any liability, including liability for infringement of proprietary rights, relating to the implementation of information in this specification. Authors of this specification also do not warrant or represent that such implementation(s) will not infringe such rights.
Copyright ©1995-2003 Semtech Corporation
20
SH1211 data sheet v1.10 (2003-07)
www.semtech.com
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