GL911TX

Your Imagination, Our Creation GL911Tx Wireless Mouse Transmitter Controller Version 1.1 Dec. 3, 2001 Genesys Logic, Inc. 10F, No. 11, Ln. 155, Sec. 3, Peishen Rd., Taipei, Taiwan Tel: (886 2) 2664 6655 Fax: (886 2) 2664 5757 http://www.genesyslogic.com GL911Tx 1.1 GL911Tx Wireless Mouse Transmitter Controller Package Type: PDIP 18/ SOP18 Features lFully CMOS Static Design l8 Bits RISC-like Micro Controller l1 K *13 bits ROM / 48 Bytes RAM l2Mhz external clock lSupport analog or digital photo sensor lBuilt in Genesys Logic’s proprietary wireless link protocol lLow-cost & Low Power solution lPackage : 18Pin PDIP / SOP 18 BUTM XLOBAT GND XRST GND Y1/W1 Y2/W2 X1/Z1 X2/Z2 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 BUTR/K5 BUTL/K4 OSCI OSCO VCC TXDATA TXEN XYEN WZEN GL911Tx Functions Power Management l l l l Support up to 4Dimention/5Buttons l scrolling type mouse High Tracking speed (12inch/sec) for l 400dpi RF transmission rate: 4800 BPS Ultra High Packet Rate (Maximum 100 l packet /sec) 3 step power saving stage: Full speed / Standby / Sleep Scroll & button sleep wake up (Response time < 30ms) Overall system current Sleep < 400uA (Include photo sensing) Genesyslogic’s proprietary wireless protocol l l l l Provide 8 bits Random ID to avoid co-channel interference Provide 2bits packet ID Provide 2bits user product ID Provide 4 bits CRC (Cyclic Redundancy Check) for packet protection ©2000-2001 Genesys Logic Inc.—All rights reserved -1 GL911Tx 1.1 1. Overview GL901Rx/GL911Tx RF-USB is the high performance and low cost ASSP solution for wireless mouse application. Genesys Logic’s RF-USB mouse series support USB and PS2 interface and provide ultra high response for wheel scrolling type mouse up to 100 packets per second. They are designed to support up to 4 Dimension and 5 buttons to cover most of the pointing device applications. GL911Tx is the mouse controller and RF transmitter encoder for portable wireless Mouse body. This chip is a high speed RISC-Like MCU can perform high tracking speed for wheel mouse moving and encode the mouse data with Genesys Logic’s proprietary protocol. GL911Tx can support 2D/3D/4D and up to 5 buttons. With 4800BPS high transmission rate it can report 2.5 times data rate than traditional tethered Rs-232 mouse and almost the same rate as general tethered PS2 or USB mouse. It means the overall excellent performance would give better mouse operation’s feeling just like the tethered mouse. GL901Rx is a bridge between RF demodulated base band signal to USB or PS/2 interface. It can adopt any RF wireless receiver easily and decode the RF Genesys Logic’s proprietary protocol to host site. This chip is also a high speed RISC-Like MCU with robust low speed USB SIE transceiver. With Genesys Logic’s proprietary wireless link protocol, which can distinguish up to 255 different ID code to avoid other RF interference and insure the error-free data to host. ©2000-2001 Genesys Logic Inc.—All rights reserved -2 GL911Tx 1.1 2. Features l Fully CMOS Static Design l 8 Bits RISC-like Micro Controller l 1 K *13 bits ROM / 48 Bytes RAM l 2Mhz external clock l Support analog or digital photo sensor l Built in Genesys Logic’s proprietary wireless link protocol l Low-cost & Low Power solution l Support up to 4Dimention/5Buttons scrolling type mouse l High Tracking speed (12inch/sec) for 400dpi Mechanism l RF transmission rate: 4800 BPS l Ultra High Packet Rate (Maximum 100 packet /sec) Power Management l 3 step power saving stage: Full speed / Standby / Sleep l Scroll & button sleep wake up (Response time < 30ms) l Overall system current Sleep < 400ìA (Include photo sensing) GLPWP (Genesys Logic’s Proprietary Wireless Protocol) l Provide 8 bits Random ID to avoid Co-channel interference l Provide 2bits packet ID for 4 type packets (Broadcast packet, X/Y packet, Button+ZW packet, ..) l Provide 2bits user product ID for other HID device expansion (Keyboard, Joystick, ….) l Provide 4 bits CRC (Cyclic Redundancy Check) for packet protection ©2000-2001 Genesys Logic Inc.—All rights reserved -3 GL911Tx 1.1 3. Function Description 3.1 Block Diagram DC-DC Step Up Txen Txdata X/Y/Z/W PCB Loop Antenna Transmitter Module Tx Crystal GL911Tx Buttons 2Mhz Resonator Figure 3-1:GL911Tx Block Diagram 3.2 Power supply GL911Tx‘s operation voltage is between 2.2V to 5.0V. It is recommended to use DC-DC step up converter to provide a stable 3.0V for GL911Tx MCU, IR Emitter LED and analog photo sensors. It is possible to reduce the DC-DC step up converter circuit, if using the digital photo sensors. 3.3 Resonator for oscillator GL911Tx has been optimized for its firmware code. It uses only 2Mhz resonator to operate 4800 Bps encoding and mouse control sequence. Lower resonator frequency means lower power consumption and longer battery operation life. 3.4 Reset & Setup Button Each mouse needs a unique Random ID to avoid co-channel interference between two or more closer device working at the same time. Press “Setup” button can change the Random ID at each time. The “Setup” button and the MCU “reset” pin is the same pin (Active Low). Pull up resistor (30K~100K ohm) is required for this pin. When the setup button is pressed (change from Low to High) GL911Tx will generate a new 8 bits ID with random number and enter “Broadcast mode” 30 seconds. If the receiver (GL901Rx) is also in the “Setup” phase (Note1), receiver will accept the packet and store the Random ID into EEPROM. Note1: The receiver will keep listening the broadcast packet 30 seconds after the receiver “Setup” button is pressed or “Remote Setup” is enabled. Please refer to the GL901Rx datasheet. ©2000-2001 Genesys Logic Inc.—All rights reserved -4 GL911Tx 1.1 3.5 X, Y, Z, W photo sensor (a) The X1, X2, Y1, Y2, Z1, Z2, W1, W2 are connected to PIR collector pins respectively. In order to reduce the pin count, X/Z axis and Y/W axis are shared with the same input pins. X,Y axis’s IR LED is controlled by XYEN pin and Z,W axis’s IR LED is controlled by ZWEN pin. Each IR control pin is turned on periodically from 20us/per 208us (Full Speed) , 20us/per 1040us (standby mode) and 20us/per 10ms (Sleep mode) for power saving. (b) The photo sensor pin threshold voltage is around 0.8 Volt. It is necessary to adjust the current limit resistor and photo sensor’s emitter resistors for different photo sensor and roller wheel mechanical parts. Table 3-1: Period of Photo sensor active time Mode Full Speed Standby Sleep XYEN/ZWEN flush time 20ì s 20ì s 20ì s Period 208ì s 1040ì s 10.40ms State Change time Instant 12ms 6sec V3V V3V V3V V3V (X LED) D4 LED X1/Z1 R2 4.7K Q1 PIR X2/Z2 R3 4.7K (Z LED) D5 LED X1/Z1 Q2 PIR X2/Z2 V3V V3V (Y LED) Q3 D8 LED Y1/W1 R12 PIR Y2/W2 R13 4.7K (W LED) Q4 D9 LED Y1/W1 PIR Y2/W2 R4 180 Q5 2N3904 4.7K R5 180 Q6 2N3904 R10 XYEN 10K R11 ZWEN 10K ( Min. 208us 轉 態 ) Figure 3-2:GL911Tx Photo Sensor circuit example ©2000-2001 Genesys Logic Inc.—All rights reserved -5 GL911Tx 1.1 3.6 Button Switches GL911Tx supports up to 5 buttons. But the Left button and K4 , Right button and K5 are shared with the same pins. They are read to be left/right buttons when XYEN is high and to be K4/K5 when ZWEN is high. S1 D2 BUTL/K4 S2 D3 BUTR/K5 S3 SW BUTM R6 R7 R8 1N4148 SW BUTR/K5 D7 1N4148 1N4148 SW XYEN BUTL/K4 D6 1N4148 S4 SW ZWEN S5 SW 27K 27K 27K D2 D3 D6 D7 S1 S2 S3 S4 S5 3D3B 4D3B SHORT SHORT NC NC V V V NC NC 3D5B 4D5B V V V V V V V V V Figure 3-3:GL911Tx Buttons circuit example 3.7 RF Interface (a) TXEN: The TXEN is a RF transmitter enable pin (Active high). When there is a packet needs to be transmitted the TXEN will output high to enable the transmitter. The RF module must transmit stable Radio Frequency signal within 1ms after enable. The driving capability is 12ma. (b) TXDATA: The TXDATA is a serial output, which is encoded with Genesys Logic’s proprietary wireless link protocol into RF transmitter. The baud rate is 4800baud. ©2000-2001 Genesys Logic Inc.—All rights reserved -6 GL911Tx 1.1 4. Pin Information 4.1 GL911Tx-A Pin Definition Table 4-1: Pin Definition of GL911TX-A 18 Pins SOC package No. 14 5 3 2 4 Pin Name Power Supply VDD GND GND1 Xlobat Xsetup/XR st I I I I I Power supply Pin. 2.2v < VDD < 5.5v Ground Pin NC Connect to GND or VCC System reset pin. 0 = Reset (Setup new ID), 1 = Normal operation This pin is also function as Setup for new ID pin Oscillator input pin Oscillator output pin X/Z axis photo sensor input 1 X/Z axis photo sensor input 2 Y/W axis photo sensor input 1 Y/W axis photo sensor input 2 W/Z axis IR LED Control : Active High X/Y axis IR LED Control : Active High Recommend: 3.0V Connect to Ground Pin Reserved for future use External pull up resistor required. I/O Function description Note 16 15 8 9 6 7 10 11 17 18 1 13 12 OSCI OSCO X1/Z1 X2/Z2 Y 1/W1 Y 2/W2 WZEN XYEN Button Input ButnL/K4 ButnR/K5 ButnM Control Output TXDATA TXEN I O I I I I O O I I I O O 2M resonator 2M resonator Threshold voltage around 0.8V Threshold voltage around 0.8V Threshold voltage around 0.8V Threshold voltage around 0.8V Roller Sensor Input Left Key Button 1 = Pressed, 0= Released Need pull down resistor 30K Ohm. Right Key Button 1 = Pressed, 0= Released Need pull down resistor 30K Ohm. Middle Key Button 1 = Pressed, 0= Released Need pull down resistor 30K Ohm. RF data serial out RF enable. 0 = disable, 1 = Enable When TXEN = 1 the RF transmitter is enabled. The transmitter signal must be stable within 1ms ©2000-2001 Genesys Logic Inc.—All rights reserved -7 GL911Tx 1.1 5. Electrical Characteristics Table 5-1: Electrical Characteristics Symbol Operating Temperature = 0 to 85°C; FOSC = 2MHz, VCC = 3V Characteristic General ICC VOH1 VOL1 VIH VIL ISINK2 IIN IIN Operating supply current GPIO Interface GPIO Static output high GPIO Static output low GPIO Static input high GPIO Static input low GPIO Sink current for PORT1.0-1 Input leakage current OSC1Input leakage current 0.45 VCC 0 20 -1 -3 +1 +3 2.4 0.6 VCC 0.2 VCC V V V V mA µA µA VCC = 3V; IOH = 5mA VCC = 3V; IOL = 8mA VCC = 3V VCC = 3V VOUT = 0.4V; VOUT = 0V or VCC VOUT = 0V or VCC 300 700 uA Min Max Units Conditions ©2000-2001 Genesys Logic Inc.—All rights reserved -8 GL911Tx 1.1 6. Package Dimension 6.1 PDIP-18 D 15"(2X ) L1 A1 L A F E1 C 15"(4X) eB θ e B B1 Symbol A A1 B B1 C D E1 F e eB θ Dimension in mil Min Nom Max -130 -59 60 61 -18 --60 --10 -890 900 910 259 260 -290 300 310 -100 -345 355 365 4ο 5.5ο 7ο Dimension in Min Nom -3.302 1.499 1.524 -0.457 -1.524 -0.254 22.606 22.860 6.579 6.604 7.366 7.620 -2.540 8.763 9.017 4ο 5.5ο mm Max -1.549 ---23.114 -7.874 -9.271 7ο 6.2 SOP-18 0.020 X 45 E H 0.016typ 0.050typ SYMBOLS A A1 D E H L 0 è MIN 0.093 0.004 0.447 0.291 0.394 0.016 0 MAX 0.104 0.012 0.463 0.299 0.419 0.050 8 D A SEATING PLANE 0.004 mox A1 L ©2000-2001 Genesys Logic Inc.—All rights reserved -9