DA9191EB.006 June 30,1997 MAS9191EB EVALUATION BOARD FOR CELLULAR BASEBAND ICs • Audio/Data Processor and all necessary external components • Battery Management IC and battery protection/charging circuit • VCTCXO with DAC voltage control • uP with evaluation software DESCRIPTION The Cellular Baseband evaluation board includes MAS9191A (Audio/Data Processor), MAS9129 (Battery Management) and MS8323 (VCTCXO) ICs with all needed external components and software. The two regulators of MAS9129 provide all the power for the board. The board has BNC connectors for typical MAS9191A interfaces. By using customised software and external RF parts the complete evaluation of an AMPS/ ETACS/ NAMPS phone can be performed. A general purpose micro controller is used to control the MAS9191A internal registers through a serial bus interface. For the micro controller there is 32kB SRAM, 64kB FLASH, an LCD, a keypad and an RS-232-C interface for software downloading to SRAM or FLASH. There is also a direct interface to the MAS9191A serial bus allowing an external controller to be used. FEATURES MEASUREMENTS • • • • • • • • • • • • • • • • • • • Fully operational system (only NiCd/NiMH battery or power supply needed) Connectors to Rx,Tx,microphone, ear piece, etc. Several test points for audio block Battery charger input (9.0VDC/265mA) Micro controller with 32kB SRAM, 64kB FLASH Keyboard and 2-line/16-character LCD RS-232-C interface for software downloading External micro controller connector 3.4 - 9.0 NiCd/NiMH battery input or power supply Regulator voltage and current Receive and transmit frequency responses Send and receive messages Microphone and Rx audio levels SAT detection and generation Signalling Tone level DTMF detection and generation Gain control levels Expander and compressor functionality VCTCXO output signal BLOCK DIAGRAM ON/OFF SWITCH RX MAS9129 LDO2 BATTERY INPUT (3.4 -9.0 VDC) MAS9191A 3.0V/50mA MIC BUZZER BATTERY MANAGEMENT BATTERY CHARGER (9.0 VDC/265mA) LDO1 XRESET WATCHDOG EAR PIECE MICRO CONTROLLER SERIAL 3.0V/100mA AUDIO/DATA PROCESSOR INTERFACE TEST POINTS DAC TX LCD DISPLAY Vcont MS8323 OSC OUT VCTCXO KEYPAD SRAM 32kB FLASH 64kB I/O PORT RS232C RxD DTR TxD 1 DA9191EB.006 June 30,1997 SYSTEM REQUIREMENTS For the complete evaluation of MAS9191A, MAS9129 and MS8323 ICs the following equipment is needed: • Cellular Baseband Evaluation Board • NiCd/NiMH Battery or DC power supply (3.4 to 9.0 VDC) • Battery charger (9.0VDC/265mA) • Radio test system (e.g. Marconi 2965) • RF parts for AMPS/TACS/NAMPS cellular phone or a radio test system with an IF interface • PC with RS-232-C interface with serial cable (optional) START UP Connect the supply voltage or a battery to plus and minus battery terminals. Turn on switch S1 to power up the board. The power consumption of the MAS9129 regulators can be measured by inserting an ammeter between the pins at CM1 and CM2. After powering up the system, the installed evaluation software sets up and the evaluation board is now ready for use. The power down modes of MAS9191A are controlled by register 07HEX. The default values are set by entering Register Write. See the Register write function in the next section. Rough testing of the microphone, earphone, and buzzer interfaces can be done with the MAS9191A internal loop back modes. For more detailed evaluation, a radio test set is needed. The board is assembled so that the micro controller will operate at 8.0 MHz. The micro controller can also be operated at 4.8 MHz by inserting jumper P6 and disconnecting parts X2, R23, C50 and C51. Current consumption of MAS9191A is measured at jumper CM3. EVALUATION SOFTWARE The evaluation software has the following features: - write function for changing the values of the MAS9191A registers - read function for reading the values of the MAS9191A status registers - message send - message receive A keypad serves as the software interface. The key definitions are as follows: - BACKWARD = 4 - TOGGLE =5 - FORWARD = 6 - EXIT =* - ENTER =# - UP =2 - DOWN =8 After a reset the internal registers of the MAS9191A are set to zero and the program returns to the main menu, which will display the following message on the LCD: MAS9191EB Press # for HELP MAIN MENU HELP Display help Register Write Register Read Message Send Select Register or Set Defaults Select Register Select Message or Send Message Receive Message Edit Value Read Value Edit Message Send Messages Message Receive Program flow diagram 2 DA9191EB.006 June 30,1997 EVALUATION SOFTWARE ◆ Help Pressing “#" will display instructions for the keys shown on the LCD. Press EXIT to return to the main menu. ◆ Main menu The FORWARD and BACKWARD keys will select “register read”, “register write”, “message send” or “message read”. The given function is executed by pressing ENTER. ◆ Register write When entering this function the register address will be shown at the top right. After entering the write function, pressing “#' will automatically set the default values (gain controls at nominal levels and necessary switches in proper positions) to measure the transmit and receive frequency responses. The register address can be changed with the FORWARD and BACKWARD keys. The lower line will show the current contents of the register. Press EXIT to return to the main menu. The ENTER key will remove the brackets around the register address and the cursor will move to the first nibble of the hex byte on the lower line. The UP and DOWN keys will increment or decrement the nibble. If the value of the register has been changed there will be an asterisk next to the register address. The FORWARD and BACKWARD keys will move the cursor left and right, respectively. When the cursor points to a bit of a register the TOGGLE key will change the value of the bit. After a bit has been edited the top line will display the function of the bit. The ENTER key will write any new values to the MAS9191A. Press EXIT to exit from the editing mode. If the function is terminated without writing any new values, the previous values are retained. ◆ Register read This function is quite similar to the register write function. The register address is selected with FORWARD and BACKWARD keys from the main menu. The register can be read with the ENTER key. Pressing the ENTER key a second time will update the contents of the status register. The FORWARD and BACKWARD keys will move the cursor and display the function of each bit. Return to the top line or to the main menu with the EXIT key. ◆ Message receive This function waits for 10 messages to be received. When the messages are received they can be examined with the FORWARD and BACKWARD keys. The function can be terminated with the EXIT key. An >N= in the upper right hand corner indicates NAMPS mode. ◆ Message send In this function six messages can be entered. First the desired message number must be chosen with the FORWARD and BACKWARD keys. Then the ENTER key will advance to the edit mode. With the FORWARD and BACKWARD keys the nibbles of each byte can be chosen and the value incremented or decremented with the UP and DOWN keys. The ENTER key will store the message into memory. The EXIT key will move the cursor to the upper row. After all messages are edited the LCD reads "SEND MESSAGES". The ENTER key will move the cursor to the lower row and the FORWARD and BACKWARD keys will choose the message. The TOGGLE key will alternate between the plus and minus signs. The plus sign indicates that the message will be transmitted. When all messages are chosen the ENTER key will start the transmission, and may be done repeatedly. The transmission can be terminated with the EXIT key. An >N= in the upper right hand corner indicates NAMPS mode. ◆Micro Controller and Interfaces The 68HC11 micro controller can be reset with the reset button, with DTR or by switching power off and on. In the last case the voltage regulator internal reset circuit will perform the reset. When the MOD jumper is open the controller executes the software from the FLASH ROM. When the jumper is closed the controller enters the boot-strap mode after reset. In this mode the software which contains the hl.exe program can be loaded into the FLASH ROM or SRAM through the RS-232-C interface. The syntax of the software is: el [-p<X>] <filename> Where X is the serial port number: 1 for COM1 and 2 for COM2 and the file name is the same as the S-record file without the extension. For downloading the serial cable with the following connections are needed: PC MAS9191A 2 ----- 2 3 ----- 3 7 ----- 7 20 ----- 20 More information about the 68HC11 is available from the reference manual. P9 contains six inputs to the micro controller port PE. These inputs can be used as digital inputs or as analog inputs for the A/D-converter. When the micro controller is writing to address 0x1FFC and 0x1FFD the data is also written to the LCD command register. Write cycles to memory address 0x1FFD also change the state of the port at 0x1FFE. The port has eight outputs, ground and supply voltage. The maximum load for the power supply pin is 20 mA when operating at 3V. Keypad interface is done with port PA. Pins PA0, PA1 and PA2 are inputs from the 4x3 keypad and pins PA3-PA6 are outputs to the matrix. PA7 is the output pulse for MAS9129 watchdog circuit. All PA outputs are driven with the external buffer IC3. 3 DA9191EB.006 June 30,1997 FUNCTIONS ◆ Battery Charging If a battery is used to power MAS9129, the battery may be charged by connecting the battery charger to the charger input. The battery charging circuit monitors the battery voltage level. When a negative slope in the charging curve is detected, the charging is stopped. The battery will be charged to 1 volt above the nominal battery voltage level. The current into MAS9129 can be monitored by jumper CM4. ◆ MAS9129 Regulators The voltage and current levels of the MAS9129 regulators can be measured at test points CM1 and CM2. Remove the jumper and insert an ammeter to monitor the current values. Regulator 2 is enabled by jumper J2. ◆ Microphone Interface On the evaluation board there are three possibilities for testing the microphone amplifier interface. The first way is with an on-board microphone interface, which may not be used in normal mode, but exhibits one way of implementing an interface to a microphone by using an external anti-aliasing filter. This microphone uses a DC voltage from a basic voltage divider. The diagram for this interface can be found in the schematic section. Another possibility is to use external microphone circuitry with the MAS9191A microphone amplifier using connector J1. This is done by removing the jumpers and connecting the microphone signal to pin 2 and the feedback signal to pin 1. The third possibility is to use the external microphone input EXTMIC. The electrical characteristics of the EXTMIC and MIC pins are found from the MAS9191A data sheet. ◆ Earphone Interface The BNC-type and the header type connectors are assembled for differential type earphone output. An external earphone is supplied with the evaluation board. The board is capable of driving this earphone as well as other models directly at a 3V operation voltage. Use the BNC connector EXTEARP for external earphones. Detailed electrical descriptions of these interfaces are found from the MAS9191A data sheet. ◆ Buzzer Interface The buzzer is driven by transistor Q1. The model of Q1 and the value of resistors R9 and R10 will affect the levels of the buzzer tone significantly. To test an external buzzer, connect it to the buzzer input pin. ◆ Side Tone Circuit The source of the side tone is recommended to be taken from MICOUT of the MAS9191A located at pin T2. The level of the side tone is controlled by the external circuitry shown in the schematic section. The level and the frequency response of the side tone can be controlled by changing the values of components R11, R12,C43 and C44. ◆ RX and TX Interfaces Two BNC connectors allow easy interface to RF sections or to a radio test system. The transmit audio signal as well as DTMF, ST, SAT and send messages may be monitored at the Tx connector. The receive audio signal as well as SAT and receive messages are measured by applying the signals to the RX connector. There are 22nF DC blocking capacitors on both interfaces. The electrical characteristics can be found from the MAS9191A data sheet. ◆ Microphone and Rx Audio Level Measurement The two internal operational amplifiers of the MAS9191A are used to measure audio levels. The level measurement is done with the circuit shown in the schematic section. The level detection output is monitored by the micro controller A/D converter. To examine the operation of the level detector, measure test points T6 and T7. ◆ Test Points There are seven test points along the Rx and Tx audio section. These test points can be used to measure gain control levels and the performance of the compressor, expander, limiter and all filters. The pin description section defines all test points. ◆ CTRL Interface The CTRL connector consists of the control signal TXCTRL for the transmitter and two test indicators BUSY and TXON. TXCTRL is an open collector output and is low only when a transmission collision occurs. After a collision TXCTRL goes to a high impedance state and the TX block of the MAS9191A is reset with TXRST. ◆ Three 8-bit DAC Outputs The DAC connector contains a direct interface to the three MAS9191A internal 8-bit DACs. ◆ MAS9191A Serial Bus Interface The five row jumper for the MAS9191A serial bus to the micro controller is normally closed. Remove the jumpers for external control. The STB, SCL, SRXD, STXD and XINT signals are located at pins 1, 2, 3, 4 and 5 respectively. ◆ MS8323 Output Frequency The output frequency of the VCTCXO can be measured from test pin OSCOUT. The DAC1 output from MAS9191A is the voltage control for the VCTCXO which adjusts the output frequency. Jumper J3 connects DAC1 to VCONT. The current consumption of the VCTCXO can be measured through jumper CM5. 4 DA9191EB.006 June 30,1997 CONNECTOR DESCRIPTION Connector name Battery S1 CM1 Pin NiCd Battery or external DC power supply capable of driving at least 200 mA current is connected to battery input. B+ Positive supply voltage from 3.4 V to 9.0V DC. B- Ground. ON/OFF power switch for MAS9129 voltage regulators. This jumper is normally closed, but can be opened to use an external current meter to measure the power consumption of the digital section. 1 Regulator 1 output. 2 CM2 J1 J2 EXTMIC T2 T3 T4 T5 CM3 CM4 CM5 VDD input. This jumper is normally closed, but can be opened to use an external current meter to measure the power consumption of the analog section. 1 Regulator 2 output. 2 MIC Function VDD input. The microphone is normally connected to this connector. See the microphone function. 1 Microphone input. 2 Ground. The internal/external microphone select switches. 1 Microphone amplifier feedback signal. Connect to pin 3 to use the mounted microphone. Otherwise, connect the external microphone circuit feedback signal to this pin. 2 Microphone amplifier input. Connect this to pin 4 to use the mounted microphone. Otherwise, connect the external microphone output signal to this pin. 3 Feedback signal input for the assembled microphone circuit. 4 Microphone output signal for the assembled microphone circuit. Use jumper to enable regulator 2. BNC-type connector for external microphone source. 1 External microphone input. 2 Ground. MICOUT signal is the output from the section which contains the following blocks: Filter F8, Gain Control GC3 and Filter F9. The source for the signal is either from SGND, Microphone amplifier A6, EXTMIC input or from DTMF generator. COUT is the compressor output signal. The compressor and all the blocks before T2 can be measured by using this test point. LPFIN test point can be used as an output to measure gain controls GC4 and GC5, the filter F10 and all the blocks before T3. TAUDOUT is the output from the TX audio block. 1 VDD from regulator 2. 2 MASVDD. Power input for MAS9191A. Current measurement point. 1 Battery and charging voltage output. 2 Power input for MAS9129. Current measurement point. 1 VDD from regulator 2. 2 Power input for MS8323. Current measurement point. 5 DA9191EB.006 June 30,1997 CONNECTOR DESCRIPTION Connector name TX Pin Function BNC-type connector for IF output. 1 TX output signal, which can contain data, audio, SAT and Signalling tone. 2 Ground. T6 Output of the peak level detector circuit for MICOUT. See Op Amp schematic. T7 Output of the peak level detector circuit for EXPIN. See Op Amp schematic. RX BNC-type connector for received IF signal. T8 1 RX signal input from the external IF source. 2 Ground. T9 DEOUT is the de-emphasis filter output. The output can be used to measure blocks GC1, F1, F3 and F4. Special test modes can be used to connect the outputs of the filter F2 and comparators C1 and C2 to this output. RBPFIN input. T10 EXPIN is the test point where expander input can be measured. T11 EXPOUT test point can be used to measure the expander output. EXTEARP BNC-type connector for external ear piece. 1 The output signal for the external ear piece. 2 Ground. 1 Connector for the ear piece. Note that there are already capacitors C41 and C42 connected to the ground on each output signal. Differential output for the ear piece. 2 Differential output for the ear piece. EARP BUZZER DACs Buzzer interface. Connect the external buzzer between these points. 1 Power supply voltage from connector T1. 2 Q1 collector. This connector contains the MAS9191A DAC outputs. MAS9191A has three 8-bit DACs. DAC1 Output of DAC 1. This output is also connected to Vcont input of the VCTCXO. DAC2 Output of DAC 2. DAC3 Output of DAC 3. GROUND OSCOUT J3 CTRL System ground. MS8323 VCTCXO output frequency Use jumper to connect DAC1 output to MS8323 Vcont input. TXON Transmission is active when output is high. BUSY RECC is busy if pin is low. TXCTRL Open-drain type output. The output goes low when a transmit collision occurs. In any other case the output is in a high impedance state. 6 DA9191EB.006 June 30,1997 CONNECTOR DESCRIPTION Connector name SBUS Pin Function MAS uP 1 10 2 9 3 8 4 7 5 6 1 The SBUS interface. When using an external uP, leave the jumpers open and connect the external uP to pins 1,2,3,4 and 5. STB is the strobe signal input for the MAS9191A. Connect the pins together when on-board uP is used. SCL is the serial clock input for the MAS9191A. Connect the pins together when on-board uP is used. SRXD is the received data input for the MAS9191A. Connect the pins together when on-board uP is used. STXD is the transmit data output from MAS9191A. Connect the pins together when on-board uP is used. XINT interrupt line from MAS9191A. Connect the pins together when on-board uP is used. This connector has six pins, which are connected to micro controller port E. All the pins are inputs for the micro controller. The pin can either be an analog input for the uP internal A/D-converter or general purpose digital input. Input PE2. 2 Input PE3. 3 Input PE4. 4 Input PE5. 5 Input PE6. 6 Input PE7. P4 P5 P2 This connector is closed when MAS9191A generates the clock to the uP. In this case C50,C51, X2 and R23 should not be mounted. 1 and 2 uP uses 4.8MHz clock from MAS9191A. shorted 1 and 2 uP uses crystal X2 open Keypad connector. The keypad is a 4 x 3 matrix, which has the following truth table. The outputs are driven by 74HC244. Key Output Input PA6 PA5 PA4 PA3 PA2 PA1 PA0 1 1 1 1 0 1 1 0 2 1 1 1 0 1 0 1 3 1 1 1 0 0 1 1 4 1 1 0 1 1 1 0 5 1 1 0 1 1 0 1 6 1 1 0 1 0 1 1 7 1 0 1 1 1 1 0 8 1 0 1 1 1 0 1 9 1 0 1 1 0 1 1 • 0 1 1 1 1 1 0 0 0 1 1 1 1 0 1 # 0 1 1 1 0 1 1 7 DA9191EB.006 June 30,1997 CONNECTOR DESCRIPTION Connector name Pin P7 Function 1 LCD connector. The HD44780 LCD controller command register exits at address 0x1FFC and the data register is at address 0x1FFD. Ground. 2 +5Vdc power supply. 3 Contrast control. 4 Register select. Connected to uP line A0 = address 0. 5 LCD enable input. 6 R/W input. Connected to ground. Always in write mode. 7 Data line 0. 8 Data line 1. 9 Data line 2. 10 Data line 3. 11 Data line 4. 12 Data line 5. 13 Data line 6. 14 Data line 7. RAM MEMORY FLASH P6 Physical Flash memory area 0-7FFFH 8000H 1-2 8000H-FFFFH 0-7FFFH 8000H 2-3 0000H-7FFFH P8 P3 The digital output port at address 0x1FFE. 1 Ground. 2 Data output 0. 3 Data output 1. 4 Data output 2. 5 Data output 3. 6 Data output 4. 7 Data output 5. 8 Data output 6. 9 Data output 7. 10 VDD RS-232-C interface. 2 Received data from DTE. 3 Transmit data to DTE. 7 Data terminal ready input. Note that this line can be used to reset the entire evaluation board. Signal ground. 20 8 DA9191EB.006 June 30,1997 ELECRICAL CHARACTERISTICS ◆ Digital Inputs Parameter Symbol Conditions Min Input voltage high PE2-6, PA0-2 VIH VDD=3V"5% Input voltage low PE2-6, PA0-2 VIL VDD=3V"5% Input capacitance Cin VDD=3V"5% VOH VDD =4.5V IOH=-6mA VDD =4.5V IOL=6mA VDD=4.5V IOH=--0.8mA VDD =4.5V IOl=1.6mA Typ Max Unit 0.7xVDD VDD+0.3 V GND-0.3 0.2xVDD V 8 pF ◆ Digital outputs Output Voltage high, port 1FFE, keypad Output Voltage low, port 1FFE, keypad Output Voltage high, LCD interface Output Voltage low, LCD interface VOL VOH VOL 3.84 V 0.33 V VDD-0.8 V 0.4 V ◆ Analog inputs The characteristics of the MIC, EXTMIC, RX, IFIN, SIDE TONE etc. can be found from the MAS9191A data sheet. ◆ Analog outputs The characteristics of the DAC1-3, TX, EARP, BUZZER, MICFB, SIDEFB etc. can be found from the MAS9191A data sheet. RECOMMENDED OPERATING CONDITIONS Parameter Symbol Conditions Supply Voltage Storage Temperature Operating Temperature Ts To With LCD module With LCD module Min Max 3.4 9.0 -20 0 Unit V 70 o 50 o C C 9 TX T5 T4 T3 T2 DACs 4 3 2 DAC1 DAC2 DAC3 C28 C27 1 1 C26 TAUDOUT 1 100nF 22nF C30 22 23 24 25 52 51 55 20 R1 1M 56 19 18 17 16 15 14 13 12 11 10 5 4 3 50 2 8 9 48 100nF 1 4.8MHz 57 21 64 63 62 MASVDD 7 C60 100nF 6 C29 22nF C25 LPFIN 1 22nF 22nF C24 COUT 1 22nF 22nF C23 100nF MICOUT C22 22nF 22pF X1 22pF C10 C20 C21 1 2 4 J1 1 1 3 TXACCIN TXACCOUT MICFB MIC EXTMIC SCL STB STxD SRxD XRESET DAC1 DAC2 DAC3 VDAT VSAT CAMP2O CWCIN CAMP2I COUT PREIN LPFIN TAUDIN TAUDOUT ALP TXOUT TXACCIN TXACCOUT VREF AGND MICFB MIC MICSGND MICOUT COMPIN SCL STB STxD SRxD TEST1 TEST2 GND EXTMIC XTAL2 XTAL1 XRESET EXTEARP 28 30 EARP1 29 EARP2 31 SIDEFB 32 SIDETONE VSAR VDAR STGT EST 44 43 34 35 470K C61 100nF R2 390 R25 C34 C33 C32 390 22nF 22nF 47nF RXIN C35 100nF EXPOUT EXPIN RBPFIN 22nF BUSY TXON TXCTRL 46 C31 100nF DEOUT R8 C1 MASVDD 47 49 53 61 60 59 54 58 45 RBPFOUT 42 EXPIN 41 EAMPOUT 40 EWCIN RAUDIN 36 39 EXPOUT 33 EINR RBPFIN DEOUT RXIN CLKOUT XINT BUSY TXON TXCTRL VDD 27 BUZOUT 26 BUZFB 37 RXACCOUT 38 RXACCIN MAS9191A MAS9191A IC1 1 1 1 1 1 RX EXTEARP EARP1 EARP2 SIDEFB SIDETONE EINR T11 T10 T9 T8 CTRL C4M8 XINT VO2 MASVDD BUZOUT BUZFB RXACCOUT RXACCIN 1 1 1 3 2 1 CM3 2 DA9191EB.006 June 30,1997 SCHEMATIC DIAGRAMS 10 2 1 MIC R6 47k BUZFB 100 R9 BUZZER BUZOUT R5 680k R7 15k 68pF C40 C39 2n2 6R8 R10 2 1 Q1 BC547 BZ- BZ+ VO2 C42 100nF EARPHONE C41 100nF 22nF C37 10uF + C36 MICROPHONE 2 1 EARP MIC MICFB EXPIN VO2 MICOUT VO2 22nF C48 22nF C45 MICOUT C43 100k R11 10K R12 1nF C44 SIDETONE SIDEFB 10k R17 1M R18 10k R13 1M R14 MAS9191A OP AMP #2 1M R19 MAS9191A OP AMP #1 1M R15 1uF C49 1N4148 D2 1uF C47 1N4148 D1 1 T7 1 T6 ENABLING SOFTWARE CONTROLLED HANDSFREE FUNCTIONS OPTIONAL EARPHONE AND MICROPHONE LEVEL MEASUREMENT CIRCUITS 22nF SIDETONE 1M R20 1M R16 ERPLEV To the A/D Converter of the uP MICLEV To the A/D Converter of the uP MICROPHONE, EARPHONE, BUZZER, SIDETONE AND AMPLIFIER INTERFACE EXAMPLES EARP1 EARP2 100nF C38 2k2 R4 R3 10k VO2 DA9191EB.006 June 30,1997 SCHEMATIC DIAGRAMS 11 4 5 6 7 P3 7 3 2 20 C53 100nF C54 100nF 1 2 3 RS-232-C P2 G H J K D E F KEYBOARD TxD IRQ XRAM XROM C4M8 4 6 5 3 9 8 7 10 13 8 14 7 GND MAX232 _ V.26 >TTL V.26 _>TTL _ V.26< TTL _ V.26< TTL C2- V+ V- 3 C14 C2+ 5 VDD 1C4 18 12 14 16 3 5 7 9 EN2 EN1 IC3 2 1 C16 100nF 11 10 12 9 STB SCL SRxD STxD XINT 1N4148 D4 IRQ VO1 XRESET MOD 1 6 7 8 9 10 6 5 4 3 2 SBUS 5 4 3 2 1 P4 R24 30 29 28 27 31 PA3 PA4 PA5 PA6 PA7 PA2 EXTAL RESET MODA MODB IRQ XIRQ VRH VRL PA0 PA1 R23 IRQ X2 22pF IC2 12 13 14 15 16 10 11 42 PB0 41 PB1 40 PB2 39 PB3 38 PB4 37 PB5 36 PB6 35 PB7 PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 9 4 5 E R/W 6 AS 26 VDD 1 GND XTAL 2M8 8 22pF 8.0MHz C51 68HC11A1 20 RxD 21 TxD 25 PD5 24 PD4 23 PD3 22 PD2 MICLEV 43 PE0 ERPLEV 45 PE1 47 PE2 49 PE3 44 PE4 46 PE5 48 PE6 50 PE7 10k 7 17 3 2 19 18 52 51 34 33 32 C50 MICROCONTROLLER AND RS-232 RESCNTRL 100nF C56 2 15 C55 100nF VO1 V- 1 2 13 15 19 6 4 17 11 8 6 16 74HC244 MOD C1+ 1 WDI 2 4 P1 3 2 VO1 1 1 RESET SWITCH 10k x 9 P5 1 RN1 2 NOT ASSEMBLED WHEN P13 IS CLOSED AS A15 A10 A11 A12 A13 A14 A8 A9 AD5 AD6 AD7 AD0 AD1 AD2 AD3 AD4 E R/W AS 9 8 7 6 5 4 3 2 11 1 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q 74HC573 8D ENC OC 1D 2D 3D 4D 5D 6D 7D IC5 17 18 19 12 13 14 15 16 A6 A7 A2 A3 A4 A5 A0 A1 BUS VO1 DA9191EB.006 June 30,1997 SCHEMATIC DIAGRAMS 12 BUS A14 A15 A13 E E 15 16 17 11 14 13 12 9 2 R/W 5 4 1 E DC G3 SC S0 S1 S2 G1 G2 6 3 74HC354 IC6 74HC00 & IC7 74HC00 & IC7 1 2 3 W Y 18 19 4 5 6 D2 7 D1 8 D0 D7 D6 D5 D4 D3 XWR XRD XROM XWR XRD F15 22 31 24 26 23 25 4 28 29 3 13 D0 D1 14 15 D2 17 D3 18 D4 19 D5 20 D6 21 D7 AT29LV512 CS WE OE A9 A10 A11 A12 A13 A14 A15 A7 A8 A2 A3 A4 A5 A6 A0 A1 IC9 MEMORY AND MEMORY DECODING XROM XRAM VO1 P6 3 2 1 A15 12 11 10 9 8 7 6 5 27 AD6 AD7 AD2 AD3 AD4 AD5 AD0 AD1 A7 A8 A0 A1 A2 A3 A4 A5 A6 IC8 CE WE OE 11 12 13 15 16 17 D5 18 D6 19 D7 D0 D1 D2 D3 D4 SRAM32Kx8 XRAM 20 XWR 27 XRD 22 24 A9 21 A10 23 A11 2 A12 26 A13 1 A14 10 9 8 7 6 5 4 3 25 AD7 AD2 AD3 AD4 AD5 AD6 AD0 AD1 DA9191EB.006 June 30,1997 SCHEMATIC DIAGRAMS 13 BUS IC13 12 9 IC7 A1 10 74HC00 & 8 4 3 5 11 AS 9 9 10 74HC133 & IC12 A1 A0 74HC27 _1 > 10 11 14 15 A10 A11 A12 A15 1 A13 2 A14 13 1 7 6 5 4 3 2 13 12 E A2 A3 A4 A5 A6 A7 A8 A9 6 8 6 5 1 LCD_R/W LCD_VSS 4 8 2 14 13 12 11 10 9 7 3 P7 REG 0: 0x1FFC REG 1: 0x1FFD AD7 AD5 AD6 AD0 AD1 AD2 AD3 AD4 LCD-DISPLAY V- LCD_E LCD_RS LCD_VO LCD_VDD 47k R27 AD6 AD7 AD2 AD3 AD4 AD5 AD0 AD1 9 8 7 6 5 4 3 2 11 1 IC14 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q 74HC573 1D 2D 3D 4D 5D 6D 7D 8D ENC OC LCD INTERFACE AND OUT PORT 74HC27 _1 > IC13 74HC27 _1 > IC13 VO1 12 13 14 15 16 17 18 19 9 8 7 RN2 6 5 10k x 9 4 3 2 10 1 O3 O4 O5 O6 O7 O0 O1 O2 PORT P8 1 9 8 7 6 5 4 3 2 10 at 0x1FFE VO1 DA9191EB.006 June 30,1997 SCHEMATIC DIAGRAMS 14 1 OSCOUT VO2 CH- R31 Charger Input CH+ 10k 1 2 1k 2 1 C63 1uF R29 C66 10pF CM5 C62 10uF THI V+ DRV 6 1 13 12 J3 GND BATT- 2 DAC1 R30 NiCd Battery or Power Supply 3.4V-9.0V 1.0 B- B+ C64 10uF S1 2 ON/OFF Switch 1 CM4 7 8 2 VO2 XEN2 1 5 VO1 3 MAS9129 GND 4 XWDI 6 XRESET XPWSW VCC IC15 2 1 C58 2.2uF 1 CM1 2 VO1 WDI XRESET 1 CM2 2 VO2 FOR REGULATOR VOLTAGE AND CURRENT MEASUREMENTS 3.0V/50mA J2 C57 2.2uF 3.0V/100mA MAS8323 VCTCXO, BATTERY CHARGING AND MAS9129 GND MAS8323 OUTPUT 3 Vcont 4 1 2 1N4007 D5 REF 16 7 TEMP VLIMIT BATT+ IC16 MAX713 TLO 11 CC 5 15 14 VCTCXO VCC C65 10nF 150 R28 2N6109 Q2 DA9191EB.006 June 30,1997 SCHEMATIC DIAGRAMS 15 DA9191EB.006 June 30,1997 ORDERING INFORMATION Product Code MAS9191EB Product Evaluation Board for MAS9191A, MAS9129, and MAS8323 Comments The kit includes: PCB, software and documentation LOCAL DISTRIBUTOR MICRO ANALOG SYSTEMS OY CONTACTS Micro Analog Systems Oy Kamreerintie 2, P.O.Box 51 FIN-02771 ESPOO, FINLAND Tel. (09) 80521 Tel. Int. +358 9 80521 Telefax +358 9 8053213 E-mail: [email protected] NOTICE Micro Analog Systems Oy reserves the right to make changes to the products contained in this data sheet in order to improve the design or performance and to supply the best possible products. Micro Analog Systems Oy assumes no responsibility for the use of any circuits shown in this data sheet, conveys no license under any patent or other rights unless otherwise specified in this data sheet, and makes no claim that the circuits are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Micro Analog Systems Oy makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification. 16