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Chapter 4: Address Selection

  
The card uses one address space. PCI architecture is inherently plug-and-play in nature. This means that 
the BIOS or Operating System determines the resources assigned to PCI-bus cards rather than you 
selecting those resources with switches or jumpers. As a result, you cannot set or change the card's base 
address. You can only determine what the system has assigned. 
  
To determine the base address that has been assigned, run the PCIFind.EXE utility program provided. 
This utility will display a list of all of the cards detected on the PCI bus, the addresses assigned to each 
function on each of the cards, and the respective IRQs (if any) allotted. 
  
Alternatively, some operating systems (Windows95/98/2000) can be queried to determine which 
resources were assigned. In these operating systems, you can use either PCIFind (DOS) or PCINT 
(Windows95/98/NT), or the Device Manager utility from the System Properties Applet of the control panel. 
The card is installed in the Data Acquisition class of the Device Manager list. Selecting the card, clicking 
Properties, and then selecting the Resources Tab will display a list of the resources allocated to the card. 
  
The PCI bus supports 64K of I/O space, so your card's address may be located anywhere in the 0000 to 
FFFF hex range. PCIFind uses the Vendor ID and Device ID to search for your card, then reads the base 
address and IRQ. 
  
If you want to determine the base address and IRQ yourself, use the following information. 

  
The Vendor ID for this card is 494F. (ASCII for "IO")  
The Device ID for the  card is 1148h. 

 

Manual PCI-ICM-1S 

12

Содержание PCI-ICM-1S

Страница 1: ...MODEL PCI ICM 1S USER MANUAL FILE MPCI ICM 1S C1c...

Страница 2: ...l nor the rights of others IBM PC PC XT and PC AT are registered trademarks of the International Business Machines Corporation Printed in USA Copyright 2000 2005 by Portwell I O Products Inc All right...

Страница 3: ...anty Warranty commences with equipment shipment Following Years Throughout your equipment s lifetime Portwell stands ready to provide on site or in plant service at reasonable rates similar to those o...

Страница 4: ...ap 11 Chapter 4 Address Selection 12 Chapter 5 Programming 13 Table 5 1 Baud Rate Divisor Values 13 Chapter 6 Connector Pin Assignments 16 Table 6 1 Connector Pin Assignments 16 Table 6 2 Data Cable W...

Страница 5: ...y COM Port Compatibility A type 16550 UART is used as the Asynchronous Communication Element ACE It includes a 16 byte FIFO transmit receive buffer to protect against lost data in multitasking operati...

Страница 6: ...control feature the card is ideal for use in Windows applications Specification Communications Interface I O Connection 9 Pin DBM Connector Character length 5 6 7 or 8 bits Parity Even odd or none Sto...

Страница 7: ...Figure 1 1 Block Diagram Manual PCI ICM 1S 7...

Страница 8: ...tallation The following instructions assume the CD ROM drive is drive D Please substitute the appropriate drive letter for your system as necessary DOS 1 Place the CD into your CD ROM drive 2 Type B t...

Страница 9: ...ws 3 1 or any other non PNP compliant operating system should set the PNP CMOS option to BIOS or Motherboard Save the option and continue booting the system 9 Most computers should auto detect the car...

Страница 10: ...o 115 200 baud When in the 4x position the baud rate range is up to 460 800 baud Note Refer to Table 5 1 Baud Rate Divisor Values Termination Jumpers A transmission line should be terminated at the re...

Страница 11: ...x1 x4 BAUD 485 422 DB9M TRM OUT TRM IN 4 80 3 30 Figure 3 2 Option Selection Map Manual PCI ICM 1S 11...

Страница 12: ...operating systems Windows95 98 2000 can be queried to determine which resources were assigned In these operating systems you can use either PCIFind DOS or PCINT Windows95 98 NT or the Device Manager u...

Страница 13: ...position the UART clock frequency is 1 8432 Mhz When the jumper is in the X4 position the clock frequency is 7 3728 MHz The following table lists popular divisor frequencies Note that there are two co...

Страница 14: ...ever data are ready to be read from the chip A simple polling loop must continuously check this bit and read in data as it becomes available The following code fragment implements a polling loop and u...

Страница 15: ...atically enables the transmitter when data are ready to send No software enabling is required The following C code fragment demonstrates this process while data i While there is data to send while inp...

Страница 16: ...6 1 Connector Pin Assignments The following table shows pin connections between two devices for Simplex Half Duplex and Full Duplex operations Mode Card 1 Card 2 Rx pin 9 Tx pin 2 Simplex 2 wire rece...

Страница 17: ...erential drive method is used In a balanced differential system the voltage produced by the driver appears across a pair of wires A balanced line driver will produce a differential voltage from 2 to 6...

Страница 18: ...that end Note You do not have to add a terminator resistor to your cables when you use the PCI ICM 1S card Termination resistors for the RX and RX lines are provided on the card and are placed in the...

Страница 19: ...that one node be a master node and all others be slaves The network is connected so that the master communicates to all slaves and all slaves communicate only with the master This has advantages in eq...

Страница 20: ...any problems with this manual or just want to give us some feedback please email us at tech portwell com Please detail any errors you find and include your mailing address so that we can send you any...

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