Channel Digital Board PIO-48 Document Part Document Reference Doc

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PIO-48
Channel Digital Board
PIO-48 Document Part Document Reference Document Issue Level Manual covers PCBs identified 0127-0181 PIO-48\.\0127-0181.Doc PIO-48
rights reserved. part this publication reproduced, stored retrieval system, transmitted, form means, electronic, mechanical, photocopied, recorded otherwise, without prior permission, writing, from publisher. permission contact Blue Chip Technology. Information offered this manual correct time printing. Blue Chip Technology accepts responsibility inaccuracies. This information subject change without notice. trademarks registered names acknowledged.
Blue Chip Technology Ltd. Chowley Oak, Tattenhall Chester, Cheshire 9EX. Telephone 01829 772000 Facsimile 01829 772001.
Amendment History
Issue Level
Issue Date 05.05.89 21.07.97
Author
Amendment Details First issue Window front cover logo
Contents
OUTLINE DESCRIPTION SPECIFICATION. Electrical Specification Physical Specification Electromagnetic Compatibility (EMC). Specification USER ADJUSTMENTS Selecting Base Address. Figure Selecting Base Address. Port ELECTRICAL OPTIONS Input conditioning Input/Output Connections. Detail Connector Details. OPERATING GUIDE. Using Device. Programming Guide Example Program COMMERCIAL DATA ACQUISITION PACKAGES PIO-48 Board with ASYST
Blue Chip Technology Ltd.
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Contents
APPENDIX APPENDIX PC/XT/AT Port Address APPENDIX PC/XT Interrupt APPENDIX Interrupt APPENDIX Application Notes Interfacing PIO-48. Glossary.
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Blue Chip Technology Ltd.
Outline Description
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OUTLINE DESCRIPTION
This card provides programmable digital channels. suitable sensing presence driving connections only. There provision board pull resistors enable board used detect contact closures push buttons, relay contacts etc.
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Specification
SPECIFICATIONS Electrical Specification
Number channels Logic Levels `ON' Maximum Voltage Power Requirement Power Dissipation Sink Current (Output) Source Current 2.4V Level D.C. 150mA 500mW 1.7mA 0.45V 200uA 2.4V
Physical Specification
Height Width Depth 107mm 15mm 132mm
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Electromagnetic Compatibility (EMC)
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Electromagnetic Compatibility (EMC)
This product meets requirements European Directive (89/336/EEC) eligible bear mark. been assessed operating Blue Chip Technology Icon industrial However, because board installed variety computers, certain conditions have applied ensure that compatibility maintained. meets requirements industrial environment (Class product) subject those conditions. board must installed computer system which provides screening suitable industrial environment. recommendations made computer system manufacturer/supplier must complied with regarding earthing installation boards. board must installed with backplate securely screwed chassis computer ensure good metal-to-metal (i.e. earth) contact. Most problems caused external cabling board. Boards fitted with ribbon cable connectors metal mounting bracket require particularly careful installation external cabling. cabling must totally screened; type ribbon cable which rolled round form with braided wire screen best. Standard ribbon cable will adequate unless contained wholly within cabinetry housing industrial Keep unscreened section short possible. mounting bracket board includes captive screen earth point. Connect screen cable this shortest possible wire. ensure that board meets industrial radiated field immunity 10V/metre, cable should also fitted with ferrite clamp external cable close possible connector. preferred type Chomerics clip-on-style, type H8FE-1004-AS.
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Electromagnetic Compatibility (EMC)
Ensure that screen ribbon cable bonded good earth remote cable. Cables which connect externally boards levels should exceed metres length. This restriction does apply opto-isolated boards. Failure observe these recommendations invalidate compliance.
Warning This Class product. domestic environment this product cause radio interference which case user required take adequate measures.
Specification
Blue Chip Technology Icon industrial fitted with this card meets following specification: Emissions: 55022:1995 Radiated Conducted Immunity: Class Class
50082-2:1991 incorporating: Electrostatic Discharge 801-2:1984 Performance Criteria 801-3:1984 Performance Criteria 801-4:1988 Performance Criteria
Radio Frequency Susceptibility
Fast Burst Transients
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User Adjustments
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USER ADJUSTMENTS Selecting Base Address
board located slot motherboard must appear specified position `address') port map. Available positions shown IBM-PC Technical Reference Guide. However, those possess copy this document good place location normally allocated prototyping card supplied IBM. This address decimal. Blue Chip Technology cards preset this address factory. However, devices should used while same address since contention will occur neither board will work. your machine contains card with conflicting address then another reasonably safe address (Hex). links provided board base address board within IBM-PC port map. address binary with presence link representing absence link representing base address Decimal (300 Hex) following pattern links indicated below:-
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User Adjustments
Figure Selecting Base Address
Note: View board with back panel RHS. Middle bits port address links.
More example addresses shown Appendix Note: cards must occupy same address.
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User Adjustments
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Port
PIO-48 8255 chips. Each chip three ports which programmed input output writing control word control port. (See Table Port must input output. Port split into sections each which input output. board occupies eight read/write addresses (four each 8255 chip) IBM-PC port map. Address Base Base Base Base Base Base Base Base Port Port Port Command Port Port Port Port Command Port
8255
8255
DATA (8255 PORT
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User Adjustments
DATA (8255 PORT
DATA (8255 PORT
CONTROL Port (Lower) Port Mode Selection Port (Upper) Port Bits Mode Selection Mode Flag Table quick set-up guide. Output, Output, Mode Output, Output, Mode Mode Inactive, Input. Input. Mode Input. Input. Mode Active.
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Electrical Options
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ELECTRICAL OPTIONS Input conditioning
8255 high impedance inputs. option provided terminate external input lines. This useful electrically noisy environment where load required (e.g. open collector drive). termination pull pull down resistor packs 2-7). Links select pull pull down. (See circuit diagram).
Input/Output Connections
insulation displacement connector (IDC) provided rear panel board channel signal connection. access individual channels required, ribbon cable used connect channels screw terminal block available from Blue Chip Technology part number ST-24. pins numbered shown following diagram. Pins 1-48 contain channels pins connected digital ground. When connector viewed from back system numbered pins left even numbered pins right with connector.
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Electrical Options
Detail
View with gold edge connectors downwards.
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Electrical Options
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Connector Details
Port Port
Port
Port
Port
Port
Digital Ground
Digital Ground
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Operating Guide
OPERATING GUIDE Using Device
total channel signals connected each 8255 devices PIO-48 board providing eight ports. Each signal connected within these ports, i.e.
Port Decimal Port Decimal
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Operating Guide
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Programming Guide
state input lines determined using either following methods:(a) Microsoft BASIC BASIC. X=INP Returns byte from port assigns this value variable, 8088/8086 Assembly language. PORT 0300H GETDAT: PORT AL,DX
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Operating Guide
state output lines modified using either following methods:(a) Microsoft BASIC BASIC. Outputs byte port 8088/8086 Assembly language PORT 0300H PUTDAT: PORT DATA
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Operating Guide
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following table gives summary most commonly used `control words' which must written control port configure 8255 before using this module. 8255 operate modes (mode 0-2). first mode (mode 8255 provides simple ports. Data simply written read from specified port without handshaking. following Control Code Table assumes mode required. Mode enables transfer data from specified port conjunction with strobes handshaking signals. mode data transferred bi-directional port with handshakes (Port
Control Word (Hex) Control Word (Decimal) Sets Port Output Output Output Output Output Output Output Output Input Input Input Input Input Input Input Input Sets Port Output Output Input Input Output Output Input Input Output Output Input Input Output Output Input Input Sets High Bits Port Output Output Output Output Input Input Input Input Output Output Output Output Input Input Input Input Sets Bits Port Output Input Output Input Output Input Output Input Output Input Output Input Output Input Output Input
Table Control Word Table
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Operating Guide
Example Program
following program Microsoft Basic will test operation PIO-48 link made between corresponding pins rear connector. P1=&H300 BASE FIRST &H304 BASE SECOND GOSUB &H304 &H300 GOSUB GOTO LOOP CONTINUOSLY P1+3, &H80 P2+3, &H9B P1+P, (P2+P)<>A THEN PRINT ERROR, (P2+P) F=F+1 A=A+A A=256 THEN GOTO GOTO THEN PRINT FAILED, GOTO PRINT PASSED NEXT RETURN
above program runs continuously only stopped pressing control break keyboard.
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Commercial Data Acquisition Packages
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COMMERCIAL DATA ACQUISITION PACKAGES
Blue Chip Technology PIO-48 used with almost data acquisition package that read information directly from input port.
PIO-48 Board with ASYST
board been tested with installable 8255.PORT digital device ASYST scientific software package Macmillan Software Company. more details about this package other data acquisition software please contact Blue Chip Technology. Whilst every effort been taken ensure that information provided accurate, Blue Chip Technology cannot assume responsibility error this manual their consequences. Should errors detected, company would greatly appreciate being informed them. policy continuous product development operated, resulting contents this document being subject change without notice.
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Appendix
APPENDIX
Note: View board with back panel RHS.
Address Settings Port 300H
Address Settings Port 200H
Address Settings Port 208H
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Appendix
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Address Settings Port 210H
Address Settings Port 220H
Address Settings Port 230H
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Appendix
APPENDIX PC/XT/AT Port Address
Address 000-01F 020-03F 040-05F 060-06F 070-07F 080-09F 0A0-0BF 0F8-0FF 1F0-1F8 200-207 278-27F 2F8-2FF 300-31F 360-36F 378-37F 380-38F 3A0-3AF 3B0-3BF 3C0-3CF 3D0-3DF 3F0-3F7 3F8-3FF
Controller 8237A-5 Interrupt Controller 8259A Timer, 8254 Keyboard Controller, 8742; Control Port CMOS RAM, Mask (Write) Page Register (Memory Mapper) Interrupt Controller 8259 Clear (80287) Busy Reset NPX, 80287 Numeric Processor Extension, 80287 Hard Disk Drive Controller Reserved Reserved Parallel Printer Port Reserved Serial Port Reserved Reserved Parallel Printer Port Reserved SDLC Communications, Bisynchronous Reserved Bisynchronous Reserved Reserved Display Controller Diskette Drive Controller Serial Port
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Appendix
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APPENDIX PC/XT Interrupt
Number Usage Parity Timer Keyboard Reserved Asynchronous Communications (Secondary) SDLC Communications Asynchronous Communications (Primary) SDLC Communications Fixed Disk Diskette Parallel Printer
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Appendix
APPENDIX Interrupt
Level Microprocessor Interrupt Controllers CTLR CTLR2 Timer Output Keyboard (Output Buffer Full) Interrupt from CTLR Realtime Clock Interrupt Software Redirected (IRQ Reserved Reserved Reserved Coprocessor Fixed Disk Controller Reserved Serial Port Serial Port Parallel Port Diskette Controller Parallel Port Function Parity Channel Check
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Appendix
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APPENDIX Application Notes Interfacing PIO-48
signals present ports either NMOS CMOS 8255 (Transistor Transistors Logic) compatible, that they will interface into standard 74LS logic. However, limitations when interfacing other circuitry. following should considered when attempting interface PIO-48: PIO-48 cannot drive high capacitances. PIO-48 cannot sink loads greater than 2.5mA retain output voltage that compatible. PIO-48 cannot source loads greater than 200uA (-400uA CMOS version) retain output voltage that compatible. PIO-48 cannot interface voltage greater than (VDD) lower than 0.5V. PIO-48 cannot drive long lengths cable into other compatible devices. standard onboard interfacing primarily susceptible interference noise used with long cable runs.
General requirement:LOW Input 0.8V Output 0.45V HIGH (VDD) (VDD)
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Appendix
Characteristics:
PARAMETER SYMBOL LIMITS Input Voltage High Input Voltage Output Voltage High Output Voltage Input Leakage Current High Input Leakage Current Output Leakage Current High Output Leakage Current Supply Current (Dynamic) Supply Current (Standby) ILIH ILIL ILOH ILOL IDDI IDD2 -O.5V 2.4V 0.8V @-20uA IOL=1.7MA 0.45V 10uA -10uA 10uA -10uA 120mA 120mA -0.5V 8255 82C55 LIMITS VDD+0.3V 0.8V IOH=-400uA IOL=2.5MA 0.4V 10uA -10uA 10uA -10uA 15MA 50uA
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Glossary
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Glossary
High level input voltage minimum maximum voltages that applied (ref high recognised. level input voltage minimum maximum voltages that applied (ref recognised.
High level output voltage minimum that will presented output high given current source current. level output voltage maximum voltage that will presented output given maximum current load.
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