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AMRI-1000
Mobile Navigation Interface IC for Navigation Pad Module
Data Sheet
Description
The AMRI-1000 is a low power multi mode navigation sense and interface IC designed for use with the AMRS and AMRT series of navigation pad modules to provide a mouse-like pointing solution for mobile applications. In addition to mouse-like navigation, the AMRI-1000 combined with AMRS/AMRT navigation pads can be configured to operate as a four or eight-way switch, a joystick and a scroll wheel like input device. The IC also supports combination of mouse and joystick modes for new navigation experience of e.g. web pages providing precise link selection with fast panning of web pages. The operating mode can be dynamically reconfigured to provide the best user navigation experience for any active application. For example, the user may select joystick mode for a game and scroll wheel mode for phone book scrolling, while menu navigation is done with the backward compatible 4-way switch mode - always optimized and user configurable for any application. Versus competing solutions, the AMRI-1000 combined with Avago's AMRS/AMRT series navigation pads is unique in its ability to provide superior tactile feedback as well as multiple intuitive to use operating modes in a compact form factor.
Features
* 360 degree navigation * Superior tactile response * Integrated selection switch with tactile feedback moving with disk * Dynamically Reconfigurable Multimode operation: Mouse mode, Analog Joystick mode, Hybrid Mouse/Joystick mode, 4-way / 8-way rocker switch emulation modes, Scroll wheel mode * Up to 250Hz screen update rate * Internal clock * 7 mW operating power1 (footnote: with 25% run rate while navigating) * 200 uW standby power with wake on motion2 (footnote: with 1 Hz sampling rate) * 30 W power in shutdown mode * 2.8V Supply Voltage * 1.8V or 2.8V I/O Voltage * Compact form factor in standard TQFN package * Two-wire serial interface or 4-wire SPI interface (selectable)
Theory of Operation
The AMRS/AMRT series navigation pads are capacitancebased sensor modules. A sliding disk is held at a center position by a patent pending pseudo-spring system when the pointer is not being used. Cursor navigation is activated when contact with the slider is sensed. The sliding disk may be moved in any direction with excellent tactile feedback provided by the pseudo-spring system. The on-screen pointer tracks the movement of the sliding disk providing a mobile navigation experience similar to that provided by a PC mouse. A selection or clicking operation can be performed by fully depressing the sliding disk. A dome switch provides tactile feedback for this operation. The IC is built in a TQFN package and provides its own internal clock.
Applications
* Mobile Phones and Smart Phones * Computer Peripherals * Remote Controls * PDAs, Sub-Notebook and Laptop PCs * Mobile Multimedia Players * Video Game Controllers
Component Image
Block Diagram
Vdd Vddio
Navigation FW
Configuration Registers
I/O Select 4-wire SPI or twowire interface
Mobile Device Processor
uProcessor
I/O
Motion Interupt Power Down/ reset
Navigation Pad
Analog interface
Motion Buffer
IC Package (TQFN) and connections to navigation pad
IC Dimensions (bottom and side view):
Pinout
Note: I/O = digital input/output A = analog P = power Pin 1 4 5 6 7 8 9 10 11 1 1 14 15 16 17 18 19 0 1 4 5 6 7 8 Pin Name IO_SELECT IO_CLK IO_MISO_SDA IO_MOSI_A0 IO_NCS_A1 Reserved Reserved Reserved Reserved Reserved XROM_SDA XROM_SCK MOTION VDD_IO DRIVE GND NC SLIDER_SENSE1 SLIDER_SENSE SLIDER_SENSE SLIDER_SENSE4 Reserved Reserved VDD GND NRST_NSHD GND GND SCLK(I) SCL (I) MISO(O) SDA (IO) MOSI(I) A0 (I) NCS (I) A1 (I) SPI Two-Wire interface (TWI) I/O I/O I I/O I/O I I I O I O I/O O O P O P A A A A A A A P P I P P Description SPI/TWI Select High = SPI Serial clock signal TWI mode: SDA (Serial data) signal SPI mode: MISO (Master in Slave out) signal Address select when used as TWI, addr[0], states SPI mode: MOSI (Master out Slave in) signal Address select when used as TWI, addr[1], states SPI mode: nCS (Chip select) signal Connect to VDD_IO 1.8V or .8V Nominal Connect to Ground No Connection Connect to Ground No Connection If patch code required, connect to a EEPROM (e.g. 4A64) data (SDA) pin, else leave not connected If patch code required, connect to a EEPROM (e.g. 4A64) clock (SCL) pin, else leave not connected Motion interrupt pin Supply voltage for logic interface Analog Drive to center electrode Connect to Ground No connection Analog Sense Analog Sense Analog Sense Analog Sense No connection No connection VDD .8V Nominal Connect to ground Reset and shutdown Connect to ground Connect to ground
assemble either RSPI or RTWI VDD_IO RSPI VDD C 100nF GND GND NRST Shield ring E E D E E Sense4 Sense3 Sense2 Sense1 Drive GND 10k R Vdd2.8V RTWI 10k GND For TWI io mode Optional chip address selection resistors TWI mode signals Vdd2.8V VDDio GND NRST SCL SDA IRQ
2.7 C 10nF
GND
GND
28 27 26 25 24 23 22 21 20 19 18 17 16 15
GND GND NRST GND VDD Reserved Reserved SENSE4 SENSE3 SENSE2 SENSE1 SHIELD GND Drive
AMRI-1000
VDD_IO
VDD_IO
IO_SELECT IO_CLK IO_DATA IO_MISO_A0 IO_NCS_A1 Test1 Test2 Test3 Test4 Test5 XROM_SDA XROM_SCL MOTION VDD_IO
1 2 3 4 5 6 7 8 9 10 11 12 13 14
IO_SELECT IO_CLK_SCL IO_MISO_SDA IO_MOSI_A0 IO_NCS_A1 VDD_IO
A0 A1
RTWI 10k
RTWI 10k SPI mode signals
RTWI 10k GND
RTWI 10k GND
GND MOTION
Vdd2.8V VDDio GND NRST CLK MISO MOSI NCS IRQ
VDD_IO 10nF C GND C GND 100nF
2.7
R
VDDio
AMRI-1000 recommended application schematic
Absolute Maximum Ratings
Parameter Storage Temperature Operating Temperature Supply Voltage ESD Input Voltage Transients I/O voltage Lead Solder Temp VTR VIO Symbol TS TA VDD Min. -40 -5 -0.5 Max. 85 70 .6 +/- 0.V VDD_IO+0.V 60 Units C C V kV V V C All pins, human body model MIL 88 Method 015 Notes
Recommended Operating Conditions
Parameter Operating Temperature Power supply voltage I/O supply voltage Supply noise Symbol TA VDD VDD_IO VN Min. -5 .5 1.7 .8 1.8/.8 Typ. Max. 70 . VDD 50 Units C Volts Volts mV Supports 1.8V and .8V I/Os. I/Os must be below VDD Peak to peak within 0-1 MHz bandwidth Notes
4
DC Electrical Specifications
Electrical Characteristics over recommended operating conditions. Typical values at 25 C, VDD = 2.8 V, Default register values Parameter System Current, run mode System current, rest modes Rest1 Rest Rest System Current, shutdown Resolution IDD5N RES 00 Symbol Min. IDD5 IREST Typ. 8 Max. 1 Units mA Notes NAVG = 0x0
Vdd=.8V, Vdd/Vddio = .V Vddio=1.8/.8V 4.0/4.1 0.5/0.6 0.07/0.07 0.08 1000 5 0.9 0.1 1.6 mA mA mA A counts 00 counts over full mechanical movement. +/-mm slider travel is ~ 840 cpi resolution. DPISCALE register can increase effective cpi. Voltage is relative to Vddio (0.65 Vddio per Jedec87) Voltage is relative to ground (0.5 Vddio per Jedec87) Voltage is relative to Vddio (per Jedec87) Voltage is relative to ground (per Jedec87) at Vol at Voh Wakeup time ~0ms, Register 0x6 set to 0x05 Wakeup time ~100ms, Register 0xA default value 0x1D Wakeup time ~1s, Register 0xE default value 0xFF
Input/Output Input High Voltage Levels Input Low Voltage
VIH VIL
-0.6 -0. -0. 0 -1. 0.6 1.9 0.0
0. 0.6 0 0.
V V V V mA mA
Output High Voltage VOH Output Low Voltage VOL Output Low Current Input Leakage Current Input Offstate Leakage Current IOL Output High Current IOH
9.4 0.04
uA uA
AC Electrical Specifications
Electrical Characteristics over recommended operating conditions. Typical values at 25 C, VDD=2.8 V Parameter Power up delay Motion refresh rate Two-Wire Interface Speed 4-wire SPI Interface speed Symbol TPUP Frefresh Min. Typ. Max. 5 50 400 Units ms Hz kHz MHz Notes From the time VDD reaches .8V until normal operation
5
Registers
Complete register definitions are under development Address 0x00 0x01 0x0 0x0 0x04 0x05 0x07 0x08 0x09 0x0A 0x0C 0x0E 0x0F 0x10 0x11 0x18 0x0 0x1 0x 0x 0x4 0x5 0x6 0x8 0x9 0xA 0xC 0xD 0xE Register Name PROD_ID hw_Rev_ID STATUS Delta_X Delta_Y delta_Hi intctl IODL_CTL IODL_DATA CAL_CONTROL calreset BOOT_STAT FORCE_HI FORCE_LO MANUAL_CAL_CTL scrollctl Force_Run_Mode Obs_Run_Modes Run_HB OSC_CTL REST1_DS_HI REST1_DS_LO REST1_HB REST_DS_HI REST_DS_LO REST_HB REST_DS_HI REST_DS_LO REST_HB R/W RO RO RO RO RO RO RW RW RW RW RW Rw R0 RO RW RW RW RO RW RW RW RW RW RW RW RW RW RW RW Default Value 0x80 0x1 NA NA NA NA 0x0C NA NA 0xC4 0x41 0x01 NA NA 0x04 0X09 0x00 0x01 0x1D 0x0 0x01 0x90 0x1C 0x01 0x97 0X1D 0xD 0xF0 0xFF Address 0x5 0x9 0x40 0x41 0x4 0x4 0x44 0x45 0x46 0x47 0X48 0X49 0x4A 0x4B 0x4D 0x5C 0x5D 0x5E 0x5F 0x60 0x61 0x6 0x6 0x66 0x67 0x6D 0x7A 0x7D Register Name HB_COUNT ANA_GAIN_SPI NAVMODE DPISCALE JOYSTICK_RAD JOYSTICK_THRESHOLD DUAL_RAD DUAL_THRESHOLD ROCKER_SWITCH_RAD ROCKER_SWITCH_INCR DZ_RADIUS MOUSE_ZONE JOYSTICK_FAST_RAD MAX_VEL SENSE_MAP TOUCH_1_HI TOUCH_1_LO TOUCH__HI TOUCH__LO ADCLIM_HI ADCLIM_LO CLICK_THRESHOLD_HI CLICK_THRESHOLD_LO TOUCH__HI TOUCH__LO NAVG Shutdown WD_DISABLE R/W R0 RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RO RO RW RW RW RW RW WO WO Default Value NA NA 0x00 0x0 0x0A 0x64 0x14 0x 0x10 0x0 0x19 Ox1E 0x8 0x 0XE4 NA NA NA NA NA NA NA NA NA NA 0x0 NA NA
For product information and a complete list of distributors, please go to our web site:
www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries. Data subject to change. Copyright (c) 007 Avago Technologies Limited. All rights reserved. AV0-055EN - July 5, 007

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