MAX147 Evaluation System/Evaluation MAX147 evaluation system syst

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MAX147 Evaluation System/Evaluation
MAX147 evaluation system system) complete, low-cost, 8-channel data-acquisition system consisting MAX147 evaluation kit) Maxim 68HC16 80C32 microcontroller (µC) module. PC-compatible software provides handy user interface exercise MAX147's features. Source code provided. Order system comprehensive evaluation MAX147 using personal computer. Order 68HC16 80C32 module purchased previously with another Maxim system, custom other µC-based systems. MAX147 evaluates both MAX147 MAX146. evaluate MAX146, order free sample MAX146BCPP along with MAX147 kit. Proven Board Layout Complete Evaluation System Convenient Test Points Provided On-Board Data-Logging Software Source Code Provided Fully Assembled Tested
Features
Evaluates: MAX146/MAX147
Ordering Information
PART MAX147EVKIT-DIP MAX147EVC16-DIP MAX147EVC32-DIP TEMP. RANGE +70°C +70°C +70°C BOARD TYPE Through-Hole Through-Hole Through-Hole
Component List
DESIGNATION C7-C14 C15, C17-C20 JU1, JU2, R1-R8 R10-R13 R17, None None DESCRIPTION 0.01µF ceramic capacitors 0.1µF ceramic capacitors 4.7µF tantalum capacitor 10µF tantalum capacitor 0.047µF ceramic capacitor 2x20 right-angle socket 10-pin header 2-pin jumpers resistors 10k, 10-pin resistor pack Open 220k, resistor 180k, resistor 100k trim resistors 100, resistor Maxim MAX147BCPP Maxim MAX872CPA Maxim MAX393CPE Maxim MAX666CPA Maxim MAX495CPA 74HCT04 Maxim MAX494CPD board Software disk, MAX147 Evaluation
MAX147EVC16 System Component List
DESCRIPTION MAX147 Evaluation (MAX147EVKIT-DIP) 68HC16 Module (68HC16MODULE-DIP)
MAX147EVC32 System Component List
DESCRIPTION MAX147 Evaluation (MAX147EVKIT-DIP) 80C32 Module (80C32MODULE-DIP)
MAX147 Stand-Alone
MAX147 provides proven board layout facilitate evaluation MAX147. must interfaced appropriate timing signals proper operation. Refer MAX147 data sheet timing requirements. MAX147 operates with either supply supply. kit's regulator powered user-supplied source. Trim sets actual voltage. adjustable from approximately 2.3V 3.6V. power supply already use, disable onboard regulator unplugging MAX666 from socket. Then connect supply input pad.
Maxim Integrated Products
free samples latest literature: http://www.maxim-ic.com, phone 1-800-998-8800. small orders, phone 408-737-7600 ext. 3468.
MAX147 Evaluation System/Evaluation Evaluates: MAX146/MAX147
3V-Only Systems
systems, unplug MAX666 regulator connect your power supply input pad. Connect input pads each other power MAX393. (The MAX393 powered with Detailed Description Hardware section.) development flexibility, uses MAX393 route EXTCOM signal input. Obtain DOUT SSTRB signals from header J18, from 40-pin connector (3V-only systems require 74HCT04 level translator). Start MAX147 software setting current directory match directory containing Maxim programs, then type program name MAX147. turn disconnect module while program running; will have restart program. program asks which module which port connected (the default 68HC16). 80C32 module, press select 80C32. Press space until correct serial port highlighted, press ENTER. MAX147 program terminalemulation mode. Turn module's power. module displays log-on banner tests RAM. Download resident program module pressing ALT+L (i.e., hold down strike key). program prompts file name. Press ENTER download file.
Systems Using Logic
5V-logic systems, 74HCT04 translates MAX147's outputs levels. MAX147's input driven directly logic levels (obtain DOUT SSTRB signals from 40-pin connector). 5V-only applications, refer MAX186/MAX188 analog-to-digital converters.
MAX147 System
MAX147 system operates from user-supplied power supply, from which generates supply board. regulator supplies power MAX147. level translators provided interface MAX147 with board.
Quick Start
Copy files from distribution disk your hard disk blank floppy disks. Make sure that MAX147 software directory. necessary files root directory distribution disk, source code SOURCE subdirectory. SOURCE subdirectory required operate system. Carefully connect boards aligning MAX147 kit's 40-pin header with module's 40-pin connector. Gently press them together, that they flush against another. Connect power source module terminal block. This located next on/off switch, upper-right corner module. Observe polarity marked board. Connect cable from computer's serial port module. 9-pin serial port, straight-through, 9-pin female-to-male cable. only available serial port uses 25-pin connector, standard 25-pin 9-pin adapter required. software checks modem status lines (CTS, DSR, DCD) confirm that correct port selected.
Press ALT+C switch control panel screen after resident program successfully downloaded. Apply input signals CH0-CH7 inputs edge MAX147 board. Observe readout screen. Table lists commands available from control panel screen. Before turning power MAX147 kit, exit program pressing ALT+X.
Evaluating MAX146
evaluate MAX146, turn power kit, remove MAX147 replace with MAX146BCPP. Disable external reference removing jumpers JU5. Type MAX147 start software.
Detailed Description Software
Shutdown Power Cycling (MAX147)
From control panel, up/down arrow keys select power cycling mode. Power cycling puts MAX147 powerdown (FULLPD) mode between readings. MAX147 always fully powered during conversions.
Shutdown Power Cycling (MAX146)
From control panel, up/down arrow keys select power cycling mode. MAX146 supports FULLPD mode well FASTPD mode, where
MAX147 Evaluation System/Evaluation
internal 1.2V bandgap reference remains active. MAX146 always fully powered during conversions. When used with slower data-logging command, specify delay seconds. delay between enabled channels, line data logged after enabled channels have been polled.
Evaluates: MAX146/MAX147
Low-Speed Data Logging
RS-232 serial link limits data-logging sample rate more than 10sps (samples second). data-logging command used write data userspecified file plain comma-spaced-value text format. From control panel screen, press file already open, software asks file name. Only file allowed session. Once file open, press toggle data logging off. With data logging enabled, "Logging" flashes screen. complete line data written after enabled channels sampled. first line file contains column headings. Each subsequent line file contains eight channels, separated commas. values written decimal output codes scaled voltages, depending which setting control panel currently displaying. commands select display format (Table data marker command, used sequentially different sections file indicate change setup input conditions. Pressing writes extra entry current line data log, indicate change setup input conditions.
Voltage
connected ground (default) usersupplied analog common voltage applied EXTCOM input pad. Press select desired connection. software measure user-applied voltage. When pressed from control panel screen (Table software connects EXTCOM input input channel Next, software connects ground. channel voltage measured single-ended unipolar mode. measurement performed several times averaged. After measuring external voltage, switches restored their previous configuration.
Operating with QSPI, Bits Transfer
software program KIT147.S19 loaded into 68HC16 module uses 24-bits-per-transfer mode, which operates 59ksps throughput. Refer timing diagrams Clock Modes section MAX147 data sheet.
High-Speed Data Sampling
command samples rates over samples second (sps). Data collected from only eight channels rate from 100sps 91ksps. First, select channel pressing number keys 0-7. Next, press specify name file into which samples should written. file already exists, screen displays "*** file already exists ***". begin collecting data, press After samples collected, data automatically uploaded host stored sample file.
Table Recommended QSPI Setup Parameters Bits Transfer (used KIT147.S19)
PARAMETER SPBR CPOL CPHA BITS (1.68MHz) (clock idle low) (data stable clock rising edge) (when enabled) (7.6µs delay used internal clock mode) 0000 0000 1xxx xxyy (configure start conversion) 0000 0000 0000 0000 (read data) External clock: 1000 xxx0 (hold low). Internal clock: 1010 xxx0 (hold low; delay after transfer). 0100 xxx0 (16-bit enable) Received data, left justified, with leading zero VALUE
Controlling Sampling Rate
rate high-speed sampling, data logging, oscilloscope demo mode (Table controlled (delay between samples) command. When used with sample oscilloscope demo commands, specify approximate delay microseconds milliseconds typing then number, then "µsec" "msec". Always verify timing using oscilloscope, since this delay linear code overhead. fast sampling screen oscilloscope demo mode delays from 100µs 1000µs. 68HC16 software supports delays between 68µs 1000ms. 80C32 software supports delays between 450µs 70ms.
MAX147 Evaluation System/Evaluation Evaluates: MAX146/MAX147
Operating with QSPI, Bits Transfer
program KIT14716.S19 demonstrates 16-bitsper-transfer interface scheme, which operates 91ksps throughput. this demonstration, held QSPI operates continuously background. Refer timing diagrams Clock Modes section MAX147 data sheet. this program, follow instructions Quick Start, step download KIT14716.S19 instead KIT147.S19. After loading, press ALT+C switch control panel. lowest component count, enable MAX146's internal reference removing shunts from JU5. This enables internal bandgap reference reference buffer, driving VREF internally 2.5V. 0.01µF ceramic bypass capacitor near REFADJ kit) provides noise filtering bandgap reference.
Detailed Description Hardware
MAX147 board includes MAX666, configured regulator. Trim adjusts voltage between 2.3V 3.6V. MAX872 micropower 2.5V reference. MAX494 MAX495 low-voltage, rail-to-rail amps with 500kHz gain-bandwidth product. MAX495 buffers external input source. MAX494 used buffer some input signals. MAX393 analog switch allows software route MAX147 ground external input. addition, external input routed input channel Typical systems connect directly analog ground analog common voltage. MAX393 powered driven logic case with system), must powered 74HCT04 translates DOUT SSTRB signals from logic levels interfacing module. MAX147's logic inputs driven directly from logic levels.
Changing Reference Voltage
MAX147 software assumes 2.5V reference voltage, unless otherwise specified. When using reference value other than 2.5V, specify value when starting program. example, VREF driven 2.048V reference, start MAX147 software typing: MAX147 VREF 2.048 MAX146, REFADJ driven 1.2V reference, start MAX147 software typing:
MAX147 REFADJ external reference's temperature coefficient must 20ppm/°C less achieve accuracy within four LSBs over +70°C temperature range. 12-bit accuracy over +70°C range, reference's temperature coefficient must 4ppm/°C less. MAX146 either internal reference external reference. kit, internal reference been disabled pulling REFADJ (JU2) driving VREF with MAX872 2.5V reference (JU5).
Input-Signal Buffering
analog-to-digital converter (ADC) inputs require sufficiently low-impedance source specified accuracy. inject small amount charge start acquisition time, source signal must recover within desired accuracy before acquisition time ends. source itself cannot this, buffer input signal. buffer CH4-CH7 input signals, unplug 14-pin header from install supplied MAX494 quad place. Note location toward upper right corner board. When using input buffer, buffer output cannot reach power-supply rails. MAX494 op-amp buffer installed input buffer grounded, buffered output will reach ground. MAX494 allows output signal within approximately 50mV either supply.
Table Recommended QSPI Setup Parameters Bits Transfer (used KIT14716.S19)
PARAMETER SPBR CPOL CPHA BITS VALUE (1.68MHz) (clock idle low) (data stable clock rising edge) (7.6µs delay used internal clock mode) 0000 0001 xxxx xyy0 (configure start conversion) External clock: 1100 xxx0 (16-bit transfer). Internal clock: 1110 xxx0 (16-bit transfer with delay). Received data, left justified
MAX147 Evaluation System/Evaluation
Table MAX147 Command Reference
FUNCTION Enables disables corresponding input channel software scans enabled channels. Displays conversion results decimal form. Delay between samples. Delays longer than second handled otherwise, module handles delay. Timing approximate should verified with oscilloscope. Enables disables data logging. command-line option specified, command prompts log-file name. Oscilloscope demo. Samples collected discarded fast possible. Observe waveforms timing with oscilloscope. Power-up delay. Timing approximate should verified with oscilloscope. When using external reference, power-up delay necessary should zero. Power-up delay used regardless which power-cycling mode selected. Samples eight inputs high speed. sampling rate controlled delays. program overhead, commands operate different rates. Timing should verified with oscilloscope. Displays conversion results volts. Chooses input scale (unipolar, bipolar, unipolar differential, bipolar differential) enabled channels. Disabled channels unaffected. Writes marker into data-log file. Measures value user-applied voltage. Changes assumed value VREF. Changes assumed voltage COM. Selecting connects ground; selecting connects EXTCOM input pad. Internal clock mode External clock mode Selects power-down mode. Switches back terminal mode. Exits DOS.
Evaluates: MAX146/MAX147
ALT+T ALT+X
MAX147 Evaluation System/Evaluation Evaluates: MAX146/MAX147
Table Command-Line Options when Starting MAX147 Software
COMMAND MONO -Lfilename VREF Defaults COM1 serial port. Defaults COM2 serial port. with monochrome display. Opens file filename data logging enables data-logging commands. Specifies actual measured voltage VREF (nominally 2.5V). Specifies voltage pin. Lists command-line options. Enables MAX146-specific program features (FASTPD power-down mode). FUNCTION
Table Jumper Settings MAX147
JUMPER Closed Open (default) Closed (default) JU2* Open Closed (default trace) Open Closed (default trace) Open JU5* Closed (default) Open open, must also open. must driven external source. Drive VREF with external reference. internal reference (not allowed with MAX147). operate with open. Switch drives COM. Enable internal reference. VREF 2.5V output (not allowed with MAX147). Current-sense jumper. MAX147 draws supply through this trace. STATE FUNCTION Ties SHDN module. Forces SHDN float. Disable internal reference. VREF input.
MAX147 Evaluation System/Evaluation Evaluates: MAX146/MAX147
MAX494
C0MCHO EXTCHO R1-R8 C7-C14 0.01µF
SHDN
0.1µF P1.2/SHDN SHDN
EXTCOMFB 0.1µF
HERE
0.1µF COM_SW TEST POINTS J18-1 J18-2 J18-3 J18-4 J18-5 SCLK SSTRB DOUT SHDN COMSEL COMCHO
EXTCOM
MAX495
BEXTCOM
COMSEL COMSEL COMSEL EXTCOM
J18-6 J18-7 J18-8 J18-9
ADJUST RANGE 2.3V 3.6V, NOMINAL
MAX666
SENSE VOUT VSET SHDN
0.1µF 220k DEVICE 100k MAX393 74HCT04 MAX494 SUPPLY PINS
COMCHO NORMAL COMCHO EXTCOM COMCHO
J18-10
1.3V
SOCKETED
180k
74HCT04
74HCT04
Figure MAX147 Schematic
MAX147 Evaluation System/Evaluation Evaluates: MAX146/MAX147
MAX147
SHDN SCLK SSTRB DOUT DGND AGND REFADJ VREF HERE VDD146
10µF 0.1µF SCLK SSTRB DOUT 0.01µF REFADJ COMSEL SCLK VREF 2.5V NOMINAL OPEN OPEN BDOUT SCLK 0.1µF J1-37 J1-38 PCS0 J1-35 J1-36 MISO MOSI OPEN OPEN P1.2/SHDN COMCHO 0.1µF 4.7µF BSSTRB BDOUT J1-27 J1-28 J1-29 J1-30 J1-31 J1-32 J1-33 J1-34 P10/BIP/UNI P11/SCLK P12/SHDN P13/SPARF P14/SSTRB P15/DOUT P16/CS P17/DIN J1-1 J1-2 J1-3 10-PIN J1-4
J1-7 J1-8
SHDN
0.1µF VOUT
MAX872CPA
COMP EXTVREF VREF 0.047µF
DOUT
DOUT 74HCT04 74HCT04 SSTRB 74HCT04 74HCT04
BDOUT
SSTRB
BSSTRB
Figure MAX147 Schematic (continued)
MAX147 Evaluation System/Evaluation Evaluates: MAX146/MAX147
1.0"
Figure MAX147EV Component Placement Guide-Component Side
1.0"
Figure MAX147EV Board Layout-Component Side
MAX147 Evaluation System/Evaluation Evaluates: MAX146/MAX147
1.0"
Figure MAX147EV Board Layout-Solder Side
MAX147 Evaluation System/Evaluation
Listing Using 68HC16 Read MAX147
Evaluates: MAX146/MAX147
MAX147 Evaluation System/Evaluation Evaluates: MAX146/MAX147
Listing Using 80C32 Read MAX147
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 1998 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.
68HC16 Module
_68HC16 Module Component List
DESIGNATION C10-C14 LED1 DESCRIPTION ceramic capacitors 22µF, radial-lead electrolytic capacitors 22pF capacitors 0.01µF capacitor Reference designator, used 0.1µF capacitors 1N4001 diode 40-pin right-angle male connector 2-circuit terminal block Right-angle printed circuit board mount, female socket Open Open Reference designator, used Open Open Open Open Open Light-emitting diode 10M, resistor DESIGNATION None None None None None DESCRIPTION 330k, resistor 10k, resistors 470, resistor resistor Slide switch Momentary pushbutton switch 68HC16 MC68HC16Z1CFC16 (132-pin plastic quad flat pack) Maxim MAX233CPP 27C256 EPROM containing monitor program 7805 regulator, TO-220 size 62256 (32K static 74HCT245 bidirectional buffer Maxim MAX707CPA 32.768kHz watch crystal Rubber feet 28-pin socket 20-pin socket printed circuit board Heatsink thermalloy 6078
68HC16 Module
68HC16 Module _The 68HC16 module assembled tested printed-circuit board intended with Maxim's highspeed serial-interface evaluation kits kits). module uses inexpensive 8-bit implementation Motorola's MC68HC16Z1 microcontroller (µC) collect data samples high speed using QSPIinterface. requires IBM-compatible personal computer external power supply, typically specified manual. Maxim's 68HC16 module provided allow customers evaluate selected Maxim products. intended used microprocessor development platform, such supported Maxim.
68HC16 Module _Detailed Description
Power Input Connector
68HC16 module draws power from user-supplied power source connected terminal block sure note positive negative markings board. three-terminal regulator allows input voltages between absolute maximum 20V. 68HC16 module typically requires 200mA input current.
68HC16 Microcontroller
Motorola's 68HC16Z1 Contact Motorola information, development, support. Maxim kits high-speed queued serial peripheral interface (QSPI) internal chip-select generation. MAX707 module monitors logic supply, generates power-on reset, produces reset pulse whenever reset button pressed.
QSPI trademark Motorola Corp.
Maxim Integrated Products
free samples latest literature: http://www.maxim-ic.com, phone 1-800-998-8800. small orders, phone 408-737-7600 ext. 3468.
68HC16 Module 68HC16 Module
68HC16 uses phase-locked loop (PLL) speed. Crystal 32.768kHz frequency reference. internal oscillator runs times faster than external crystal. When 68HC16 reset, waits lock before executes software. After locks onto reference frequency, software doubles clock speed writing clock synthesizer control register, selecting speed 16.78MHz. user area, 32kbyte CMOS static RAM. 74HCT245 octal buffer lets 68HC16 module access 8-bit port 40-pin interface connector. This memory-mapped port consists separate read write strobes, four chip selects, four address LSBs, eight data bits.
Table Serial Communications Port
NAME None FUNCTION Handshake; hard-wired RS-232-compatible data output from 68HC16 module RS-232-compatible data input 68HC16 module Handshake; hard-wired Signal ground connection Handshake; hard-wired Handshake; hard-wired Handshake; hard-wired Unused
Serial Communications
RS-232 serial port, designed compatible with 9-pin serial port. straightthrough male-to-female cable connect this port. only available serial port 25-pin connector, standard 25-pin 9-pin adapter. Table shows pinout MAX233 RS-232 interface voltage level shifter with transmitters receivers. includes built-in charge pump with internal capacitors that generates output voltages necessary drive RS-232 lines.
Table 40-Pin Data-Connector Signals
20-26 NAME VPREREG 7E000 7E800 7F000 7F800 EXTD0 EXTD1-7 MISO MOSI PCS0/SS CLKOUT PWMA FUNCTION Ground Unregulated input voltage from on-board regulator Read strobe Write strobe Chip select 7E000-7E7FF Chip select 7E800-7EFFF Chip select 7F000-7F7FF Chip select 7F800-7FFFF Address (LSB) Address Address Address Buffered data (LSB) Buffered data bits General port (LSB) General port General port General port General port General port General port General port QSPI master-in, slave-out QSPI master-out, slave-in QSPI serial clock QSPI chip-select output System clock output Pulse-width-modulator output
40-Pin Data Connector
header connects 68HC16 module Maxim kit. Table lists function each pin. Note that 68HC16 object code compatible with 68HC11 object code. 68HC16 module only with those modules that designed support only download code that targeted 68HC16 module. Downloading incorrect object code into 68HC16 module will have unpredictable results.
Address Ranges
68HC16 generates various enable signals different address ranges. enable signals directly respective chips. Several additional signals (J1.11-J1.14) available data connector used Maxim kits. Table outlines address ranges each elements found 68HC16 module, Table truth table that describes logic each 68HC16's chip-select outputs. Because addresses completely decoded, boot user have shadows.
68HC16 Module
Table 68HC16 Module Memory (all address values 20-bit hex)
00000-07FFF 08000-0FFFF 10000-17FFF 18000-1FFFF 20000-203FF 20400-7DFFF 7E000-7E7FF 7E800-7EFFF 7F000-7F7FF 7F800-7FFFF 80000-F7FFF F8000-FF6FF FF700-FF73F FF740-FF8FF FF900-FF93F FF940-FF9FF FFA00-FFA7F FFA80-FFAFF FFB00-FFB07 FFB08-FFBFF FFC00-FFDFF FFE00-FFFFF FUNCTION Boot (U3, strobed CSBOOT) Shadow boot User (U5, strobed CS2) Shadow user Internal standby RAM; 1kbyte Unused External chip select (CS7) External chip select (CS8) External chip select (CS9) External chip select (CS10) accessed 68HC16 Unused 68HC16's built-in (not used) Unused General-purpose timer module (GPT) Unused System integration module (SIM) Unused Internal standby (SRAM) control registers Unused Queued serial module (QSM) Unused
Boot
boot ROM, configured 8-bit memory device. Resistor pulls data during system reset, forcing fetch instructions using only upper eight data bits. boot checks system waits commands from host. Refer manual specific start-up procedures.
68HC16 Module
Software
software supplied disk with kit. Instructions operating software included manual. Refer manual more information.
_68HC16 Module Self Check
test 68HC16 module's integrity, connect power supply power terminals (J2). connect anything Slide power switch "ON" position. will light will flash within seconds. flashes with 50%-on/50%-off duty cycle, then passed self check. Note that this test does exercise RS-232 port 40-pin interface, does confirm that power supply, microprocessor, ROM, passed self test. flashes with 10%-on/90%-off duty cycle, then failed self check. Most likely, chip (U5) bad. remains does flash, then problem either (the EPROM), (the microprocessor), (the regulator), MAX707 reset generator, power supply. voltmeter verify that power supplies good. Check power-supply input output from regulator. oscilloscope 32.768kHz reference oscillator running.
68HC16 Module 68HC16 Module
Table 68HC16 Chip-Select Outputs Truth Table
ADDRESS RANGE 0xxxx read 1xxxx read 1xxxx write 7E0xx read 7E0xx write 7E8xx read 7E8xx write 7F0xx read 7F0xx write 7F8xx read 7F8xx write CSBOOT CS10
LED1 PWMB
GROUND UNREGULATED REGULATED INTEL COMPATIBLE READ/WRITE STROBES CHIP SELECTS ADDRESS BITS
0.1µF
CS6/IOBUFFER CS1/RDIO
74HCT245
EXTD0 EXTD1 EXTD2 EXTD3 EXTD4 EXTD5 EXTD6 EXTD7
8-BIT BUFFERED BIDIRECTIONAL DATA
8-BIT GENERAL PORT
HIGH-SPEED SERIAL INTERFACE (QSM/QSPI)
VPREREG CS1/RDIO CS7/7E000 CS9/7F000 EXTD0 EXTD2 EXTD4 EXTD6 MISO CLKOUT
J1-1 J1-3 J1-5 J1-7 J1-9 J1-11 J1-13 J1-15 J1-17 J1-19 J1-21 J1-23 J1-25 J1-27 J1-29 J1-31 J1-33 J1-35 J1-37 J1-39
J1-2 J1-4 J1-6 J1-8 J1-10 J1-12 J1-14 J1-16 J1-18 J1-20 J1-22 J1-24 J1-26 J1-28 J1-30 J1-32 J1-34 J1-36 J1-38 J1-40
VPREREG CS5/WRIO CS8/7E800 CS10/7F800 EXTD1 EXTD3 EXTD5 EXTD7 MOSI PCSO/SS PWMA
TSTME BKPT/DSCLK BKPT/DSCLK HALT BERR MODCLK DSACK1 DSACK0 IRQ7 RESET J4-1 J4-3 J4-5 J4-7 J4-9 J4-2 J4-4 J4-6 J4-8 J4-10 BERR BKPT/DSCLK FREEZE IPIPE1/DSI IPIPE0/DS0
RESISTOR
Figure 68HC16 Module Schematic
68HC16 Module 68HC16 Module
0.1µF 0.01µF MISO MOSI PCSO/SS PWMA PWMB VSSE VSSI VDDI CS10/7F800 CS9/7F000 CS8/7E800 CS7/7E000 CS6/IOBUFFER CS2/RDRAM CS1/RDIO VSSE
VSSE VSSI
VSSE
ADA6 ADA7 VSTBY XTAL VDDSYN EXTAL VSSI VDDI VDDE VSSE CLKOUT FREEZE/QUOT TSTME/TSC BKPT/DSCLK IPIPE0/DS0 IPIPE1/DS1 RESET HALT BERR IRQ7 IRQ6 IRQ5 IRQ4 IRQ3 IRQ2 IRQ1 MODCLK SIZ1 SIZ0 VSSE
PCS3 PCS2 PCS1 PCS0/SS MOSI MISO VSSE VDDE VSSI VDDI IC4/OC5 PWMA PWMB PCLK VSSE VDDE ADDR23 ADDR22 ADDR21 ADDR20 ADDR19 BGACK ADDR1 ADDR2 VDDE VSSE ADDR3 ADDR4 ADDR5 ADDR6 ADDR7 ADDR8 VSSI ADDR9 ADDR10 ADDR11 ADDR12 ADDR13 ADDR14 ADDR15 ADDR16 ADDR17 ADDR18 VDDE VSSE VDDA VSSA ADA0 ADA1 ADA2 ADA3 ADA4 ADA5
MOTOROLA MC68HC16Z1CFC16
VDDE VSSE CSBOOT DATA0 DATA1 DATA2 DATA3 VSSI DATA4 DATA5 DATA6 DATA7 DATA8 DATA9 VDDE VSSE DATA10 DATA11 DATA12 DATA13 DATA14 DATA15 ADDRO DSACK0 DSACK1 AVEC VDDE
CSO/WRRAM CS5/WRIO VSSE CSBOOT/RDROM
VSSI
VSSE DSACKO DSACK1
VSSE
XTAL
EXTAL VSSI VDDI
VSSE CLKOUT FREEZE TSTME BKPT/DSCLK IPIPEO/DS0 IPIPE1/DSI RESET HALT BERR IRQ7
10µH OPTIONAL
VSSI
0.1µF
Figure 68HC16 Module Schematic (continued)
MODCLK
VSSE
VSTBY
68HC16 Module 68HC16 Module
330k
22pF
XTAL
J3-8 J3-7 T1OUT T2OUT R1IN R2IN C216 C211
T1IN T2IN R1OUT R2OUT
32.768kHz
22pF
EXTAL
J3-2
RESET
MAX707
N.C. RESET RESET
J3-3 J3-4 J3-6 J3-1 J3-5
RESET
C112
MAX233
POWER
1N4001 VPREREG
10µH
VSSE
J3-9
78M05
22µF
OPTIONAL
VDDI
22µF
VSSI
VSSE
RESET A(00:18)
RESET
62256
A(00:18)
I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7
0.1µF
27C256
D(00:15)
0.1µF
CS2/RDRAM CS0/WRRAM
CSBOOT/RDROM
8-BIT CMOS EPROM
8-BIT HIGH-SPEED CMOS STATIC
Figure 68HC16 Module Schematic (continued)
D(00:15)
68HC16 Module 68HC16 Module
Figure 68HC16 Module Component Placement Guide
68HC16 Module 68HC16 Module
Figure 68HC16 Module Board Layout-Component Side
68HC16 Module 68HC16 Module
Figure 68HC16 Module Board Layout-Solder Side
80C32 Module
_80C32 Module Component List
DESIGNATION C10, C11, C13, IC10 None None None None DESCRIPTION 15pF ceramic capacitors 0.1µF, ceramic capacitors 22µF, radial electrolytic capacitors 1N4001 diode 40-pin right-angle male connector right-angle socket resistor 10-pin, 9-resistor Power switch Reset switch 80C32 MAX233CPP 27C64 74HCT573 74HCT139 74HCT08 74HCT245 62256 78M05 MAX707CPA 11.059MHz crystal 2-pin power connector 28-pin 600-mil socket (the EPROM) Rubber feet 3.00" 5.50" board
address decoding logic. 40-pin connector mates with connector found Maxim kits designed interface with 80C32 module. module connected IBM-compatible personal computer over serial communications port. Software provided with each runs computer controls unit consisting 80C32 module kit. program uses routine stored 27C64 EPROM download special 80C32 code each kit. downloaded code controls and, together with program running personal computer, displays output data. board operates from single supply. Both pre-regulated regulated levels available through 40-pin connector.
80C32 Module
80C32 Module Power Supply
Maxim 80C32 module requires input normal operation. on-board 78M05 power regulator supplies required logic module, requirements attached 40-pin connector. pre-regulated voltage also available data connector. source must capable supplying 100mA module meeting load requirements kit.
Microprocessor Supervisor
MAX707 module monitors logic supply, generates power-on reset, produces reset pulse whenever reset button pressed. watchdog function included because they frequently interfere while debugging programs, debugging prime function this board.
80C32 Microcontroller
_80C32 Module
80C32 Module Maxim 80C32 microcontroller (µC) module intended with this other Maxim evaluation kits kits). contains 80C32 RS-232 interface, 8kbytes EPROM, 32kbytes static RAM,
80C32 member popular Intel 8051 family µCs. low-power CMOS version that requires external program storage, bytes internal RAM, four 8-bit ports. Three ports required system serial communications memory control. fourth port (P1) available through data connector.
Maxim Integrated Products
free samples latest literature: http://www.maxim-ic.com, phone 1-800-998-8800. small orders, phone 408-737-7600 ext. 3468.
80C32 Module 80C32 Module
80C32 communicates with over serial RS232 link. MAX233 acts level shifter between ±15V RS-232 signals levels 80C32. MAX233 also generates output voltages necessary drive RS-232 lines. Port (pins 32-39) 80C32 multiplexes lower eight bits memory address eight bits read/write data. lower eight bits address data latched during each cycle 74HCT573 octal latch. latch controlled address latch enable (ALE) signal 80C32. Port (pins 21-28) 80C32 supplies upper eight bits address information. port pins (10-17) provide several unrelated functions. Pins used receive data (RxD) transmit data (TxD) pins RS-232 link. Pins write (WR) read (RD) control signals data cycles. Four other pins configured interrupt timer controls, used this board.
Address Ranges
Logic module board generates various enable signals different address ranges. enable signals directly respective chips. Several additional signals (CS0-CS3) available data connector used Maxim kits. Table outlines address range each elements found 80C32 module. Table Address Ranges Hexadecimal
ADDRESS RANGE (HEX) 0000 4000 C000 D000 E000 F000 3FFF BFFF CFFF DFFF EFFF FFFF ENABLE SIGNAL
Data Connector
40-pin connector mounted edge printed circuit board provides connection between module other Maxim kits. Both power digital signals transferred connector. join module board with kit, carefully align insert pins connector with mating 40-pin female connector kit. functions listed Table Table Connector Functions
15-18 19-26 27-34 35-40 FUNCTION Ground Pre-regulator input Regulated ADDR0-ADDR3 DB0-DB7 P1.0-P1.7 Reserved DESCRIPTION
Memory
board 27C64 EPROM containing code initializing 80C32 downloading additional program code 62256 RAM. After reset, EPROM resident code initializes 80C32, determines address range RAM, sets RS-232 baud rate 1200, waits communications from Receiving character will prompt program send initial banner that includes program name, revision level, boundaries on-board RAM. 62256 CMOS (32kbyte) static used hold program code various Maxim kits that 80C32 module controller. Programs transferred from disk using software running personal computer, such MAXLOAD other programs provided with Maxim kits. Programs written execute from this start 4000 (HEX) typically less than 4kbytes long. remaining available data storage.
Read strobe Write strobe Address C000-CFFF Address D000-DFFF Address E000-EFFF Address F000-FFFF Lowest bits address 8-bit data bits port
80C32 Module
Software Architecture
Software kits using Maxim 80C32 module divided into three elements: interface program running IBM-compatible module program located EPROM, program supplied disk that transferred located module. Immediately following transmission logon banner, program runs checker routine on-board 256kbit static RAM. filled with several patterns then read verify that each pattern been retained. pass fail indication displayed personal computer after each pass. software requires proper operation RAM. attempt board checks fail. other programs kits provided floppy disk shipped with each kit. program acts user interface transmits commands 80C32 module. other 80C32 application program that executes from located module. procedure loading programs varies with each kit, follow instructions provided.
80C32 Module
EPROM Resident Program
EPROM resident program initializes 80C32, establishes communications over RS-232 link, verifies static RAM, downloads other programs. operation starts power-up whenever reset button pressed. After reset, program waits indefinitely receive character over RS232 port. When first character received, logon banner identifying module firmware revision transmitted.
Figure 80C32 Module Component Placement Guide (x1)
80C32 Module 80C32 Module
MNEMONICS REFER HOST (DTE)
P1.0-P1.7 27-34
MAX233A T1IN T2IN R2IN R2OUT C1C2+ C216 VC214 GNDV+
P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 -INT0 -INT1
74HCT
MAX707 RESET RESET N.C. RESET
XTAL2 XTAL1 -PSEN 11.059MHz HCT08 27pF HCT08 HCT08
27pF18
27C64 N.C./A13
HCT139
HCT08
Figure 80C32 Module Schematic
80C32 Module 80C32 Module
62256 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7 I/O8 74HCT /245
ADDR0-4 15-18
DB00-DB07 19-26
LS139
-CS0 -CS3 11-14
RESERVED 35-40 POWER SWITCH POWER CONNECTOR 47µF
POWER
C4-C12 0.1µF
78M05 VOUT
47µF
47µF
Figure 80C32 Module Schematic (continued)
80C32 Module 80C32 Module
Figure 80C32 Module Component-Side Layout (x1) Figure 80C32 Module Solder-Side Layout (x1)
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 1998 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.

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