B&B Electronics QSC-100IND
Contents
1. This chapter lists a number of optional jumper settings that control various hardware features Jumpers J2 J5 are grouped together at the end of the board opposite the HD 44 connector Any changes from the factory default should be made before installing the QSC LP 100 in the computer 2 1 Factory Default Configuration Figure 2 shows the jumper configuration as shipped from the factory with two spare jumpers applied in neutral positions Remove one or both and apply as shown in following sections to set optional features Figure 2 Factory default jumper configuration 2 2 Enable Scratchpad Register SPAD J2 In the default configuration an Interrupt Status Register see section 4 3 and an Options Register see section 4 4 replace the scratchpad base address 7 of each UART If the SPAD jumper is applied as in Figure 3 the UART scratchpad registers are enabled and the Interrupt Status Register and the Options Register are not available Figure 3 Enable scratchpad registers QSC LP 100 User s Manual 7 2 3 Force High Speed UART Clock X2 X4 or X8 J3 J5 These jumpers force an increase of the UART input clock frequency by a factor of two four or eight This feature can allow legacy software to use baud rates above 115 200 bits per second It is also useful if the serial port device driver does not directly support setting the higher baud rates through the Options Register see section 4 4 If one of these2. OSC LP 100 Four Channel Low Profile RS 232 Asynchronous Communications Adapter for PCI bus User s Manual QUATECH INC TEL 330 655 9000 5675 Hudson Industrial Parkway FAX 330 655 9010 Hudson Ohio 44236 http www quatech com WARRANTY INFORMATION Quatech Inc warrants the QSC LP 100 _ to be free of defects for five 5 years from the date of purchase Quatech Inc will repair or replace any board that fails to perform under normal operating conditions and in accordance with the procedures outlined in this document during the warranty period Any damage that results from improper installation operation or general misuse voids all warranty rights Please complete the following information and retain for your records Have this information available when requesting warranty service DATE OF PURCHASE MODEL NUMBER QSC LP 100 PRODUCT DESCRIPTION Four Channel Low Profile RS 232 Asynchronous PCI Bus Communications Adapter SERIAL NUMBER li QSC LP 100 User s Manual 2006 Quatech Inc NOTICE The information contained in this document cannot be reproduced in any form without the written consent of Quatech Inc Likewise any software programs that might accompany this document can be used only in accordance with any license agreement s between the purchaser and Quatech Inc Quatech Inc reserves the right to change this documentation or the product to which it refers at any time and without notice The
3. In this example the Base addr 0 resource 1s reserved For users interested in even more details PCI BIOS information can be displayed by pressing the B key Pressing the I key displays thePCI interrupt routing table Quatech PCI Configuration Information Display Software Version 1 66 Iuatech PCL adapters detected I0SC 166 Four port AS 232 adapter ardor TD Bissc Device ID BxOb18 found in slot G81 on bus Behe Device Function code 058 Revision ID G11 Hardware Revision Bi PCI Class Coie GxXOTR R Cornsunications controller sultiport serial ubsusten Vendor ID 1395c Subsystem ID 0010 ITHTAR mapped to IRQ 11 route Orm Base adir O O fooo Tio iG bytes al Located Base adir 1 Oxf rao To i270 bytes al located H Change to Basic Mode H Other PCL devices B PCI BIOS details I 0 Quatbech PCL adapters a EXIT Interrupt routino details Figure 15 QTPCI EXE Expert Mode display QSC LP 100 User s Manual 30 7 External Connections RS 232 C devices are classified by their function as either Data Terminal Equipment DTE or Data Communication Equipment DCE Generally data terminal equipment is defined as the communication source and data communication equipment is defined as the device that provides a communication channel between two DTE type devices Terminal RS 232 C DTE Telephone line Terminal RS 232 C DTE Figure 16 Use of DTEs and DCEs in a communications link DTE
4. at the baud rate requested by the application The X2 clock mode locks the ports hardware clock at double the standard rate The baud rate the port runs at will always be double the rate requested by the applications This mode is useful 24 460 800 921 600 for legacy applicattions which cannot request baud rates over 115 200 The X4 clock mode locks the ports hardware clock at four times the standard rate The baud rate the port runs at will always be four times the rate requested by the application This mode is useful for legacy applications which cannot request baud rates over 115 200 The X8 clock mode locks the ports hardware clock at eight times the standard rate The baud rate the port runs at will always be eight times the rate requested by the application This mode is useful for legacy applications which cannot request baud rates over 115 200 6 Double click the hardware class Ports Com and LPT Each Quatech PCI Serial Port listed in this class is a child device of the QSC LP 100 parent device 7 Open the Properties dialog for a COM port then click the Port Properties tab to view the settings for that port QSC LP 100 User s Manual 29 Quatech PCI Serial Port COM Properties 8 Click the Port Settings tab and then click the Advanced button The QSC LP 100 driver will display a custom Advanced Port Settings control which allows the ports UART compatibility mode and FIFO threshol
5. fas zj Eranee Back Cancel 4 The following dialog box will display the appropriate INF file on the diskette in the drive Click the Next button 5 Window will copy the INF file from the diskette and display a final dialog indication that the process is complete Click the Finish button 5 4 Windows 95 Windows 95 maintains a registry of all known hardware installed in your computer Inside this hardware registry Windows 95 keeps track of all of your system resources such as I O locations IRQ levels and DMA channels The Add New Hardware Wizard utility in Windows 95 was designed to add new hardware and update this registry An INF configuration file is included with the QSC LP 100 to allow easy configuration in the Windows 95 environment 5 5 Using the New Hardware Found Wizard The following instructions provide step by step instructions on installing the QSC LP 100 in Windows 95 using the New Hardware Found wizard 1 After booting the computer with a newly installed QSC LP 100 the New Hardware Found dialog box will appear If you have never installed a Quatech PCI communications adapter before the dialog box may simply indicate that it has found a PCI Card QSC LP 100 User s Manual 17 2 Select the radio button for Driver from disk provided by hardware manufacturer Click the OK button to continue 3 An Install From Disk dialog box should pop up Insert the disk with the Quatech I
6. jumpers is applied it overrides any value written to the Options Register to set the clock multiplier by software The effective baud rate will be either two four or eight times the value for which the UART itself is programmed The factory default is none of these jumpers applied which allows for software control of the clock multiplier via the Options Register The Options Register powerup default is for a standard times 1 clock of 1 8432 MHz for compatibility with standard serial ports J2 O sPAD Q SPAD s OO OO J44C Q xXx OO Xx 5 OQ x Factory default Force times two clock software control Baud rates up to 230 4 kbps QO QO sPAD QO sPaD OQO X8 JO w J OQO x Force times four clock Force times eight clock Baud rates up to 460 8 kbps Baud rates up to 921 6 kbps Figure 4 Clock multiplier jumper options QSC LP 100 User s Manual 3 Hardware Installation 1 Turn off the power of the computer system in which the QSC LP 100 is to be installed 2 Remove the system cover according to the instructions provided by the computer manufacturer 3 Make any desired optional jumper setting changes 4 Install the QSC LP 100 in any empty PCI expansion slot The board should be secured by installing the Option Retaining Bracket ORB screw 5 Replace the system cover according to the instructions provided by the computer manufacturer 6 Attach and secure the cable connectors to the desired equipment
7. 7 Turn on the power of the computer system The output of the QSC LP 100 is a 44 pin D connector A cable is provided to convert the D 44 into four standard male D 9 connectors with all control signals provided to each port RTS DTR CTS DSR DCD and RI Clock multiplier scratchpad select Figure 5 Jumper connector locations QSC LP 100 User s Manual 4 Address Map and Special Registers This chapter explains how the four UARTs and special registers are addressed as well as the layout of those registers This material will be of interest to programmers writing driver software for the QSC LP 100 4 1 Base Address and Interrupt Level IRQ The base address and IRQ used by the QSC LP 100 are determined by the BIOS or operating system Each serial port uses 8 consecutive I O locations The four ports reside in a single block of I O space in eight byte increments for a total of 32 contiguous bytes as shown in Figure 6 I O Address Range Base Address 0 to Base Address 7 Base Address 8 to Base Address 15 Base Address 16 to Base Address 23 Base Address 24 to Base Address 31 Figure 6 Port Address Map All four serial ports share the same IRQ The QSC LP 100 signals a hardware interrupt when any port requires service The interrupt signal is maintained until no port requires service Interrupts are level sensitive on the PCI bus The base address and IRQ are automatically detected by the device d
8. C LP 100 s UARTs is available on the Quatech web site all numbers in hex PCI Vendor ID Ox135C Quatech Inc PCI Device ID 0x0170 QSC LP 100 PCI Class Code Base class 0x07 Simple communications controller Subclass 0x02 Multiport serial controller Interface 0x00 IRQ sourced by INTA Base address 0 0x80 bytes Memory Reserved region Base address 1 0x80 bytes I O Reserved region Base address 2 0x20 bytes I O Serial ports Port 1 at offset 0x00 Port 2 at offset 0x08 Port 3 at offset 0x10 Port 4 at offset 0x18 QSC LP 100 User s Manual 33 9 Specifications Bus interface Dimensions Serial ports Controller Interface Transceivers Power requirements Temperature Humidity QSC LP 100 User s Manual PCI 32 bit bus Universal Voltage Signaling IBM compatible computers approx 5 0 x 3 7 16550 with 16 byte FIFOs One female D 44 connector Four male D 9 connectors using adapter cable ICL3245CA High level output 5V min Low level output SV max Switching speed 5 0 volts approx 250 mA operating 0 to 70 storage 50 to 80 10 to 90 34 Maximum Load pF Data Rate kbaud Note 1 The signal transition time ratio is defined as the percentage of the unit interval or bit time the inverse of the data rate that is occupied by the signal transitioning from 3V to 3V The EIA TIA 232 E standard defines a maximum signal transition time ratio of 4 most RS 232 recei
9. IFO threshold levels to be configured The threshold values of full scale for the transmit buffer and 3 4 scale for the receive buffer shown below are optimal for most applications Note that the FIFO option for each of the QSC LP 100 s two ports is configured independently QSC LP 100 User s Manual 20 Advanced Port Settings Figure 13 Windows Device Manager 9 Use the Logical COM Port names to access the serial ports on your QSC LP 100 through your software applications Note The Logical COM Port name is assigned to your ports by Windows This name is required by a Windows application when accessing a particular port QSC LP 100 User s Manual 21 5 6 1 Changing Resource Settings with Device Manager 1 Start the Windows 95 98 ME Device Manager F ac z Fl ction 3 view Floppy disk controllers Se Floppy disk drives Fy IDE ATA ATAPT controllers ee Keyboards a Py Mice and other pointing devices 5 ra Multi port serial adapters gE Ouatech ESCiLPY 100 PCI Eight Port R5 232 Serial Adapter ct 5p Network adapters Other devices i Ports COM amp LPT a Communications Port COML y Printer Port LPT1 W Quatech PCI Serial Port COM10 W Quatech PCI Serial Port COMS W Quatech PCI Serial Port COM E Quatech PCI Serial Port COMS W Quatech PCI Serial Port COME W Quatech PCI Serial Port COM W Quatech PCI Serial Port COMS E Quatech PCI Serial Port COM a f Sound videa and ga
10. NF files on it select the correct drive letter and click the OK button Windows 95 automatically browses the root directory for an INF file that defines configurations for Multi function Adapters If no INF files are found click the Browse button and search the Win95 sub directory on the installation disk You are not required to select the file name After finding the directory containing the INF files Windows 95 will choose the correct file 4 The New Hardware Found dialog box will appear again this time for an Unknown Device 5 Again select the radio button for Driver from disk provided by hardware manufacturer Click the OK button to continue 6 Another Install From Disk dialog box will pop up The path should already be pointing to the Quatech disk Click the OK button to continue 7 You should now see the Copying Files dialog box as Windows 95 copies the driver files from the disk 8 The installation utility will ask for your Windows 95 installation disks Serial communication ports require two drivers supplied by Microsoft to function SERIAL VXD and SERIALUI DLL Insert the disk or CD and click OK NOTE You may be able to skip this step if you are certain that your system has the latest version of these files installed If you do not have your Windows 95 install disks immediately available click OK anyway A dialog box appears with an option to Skip the files Click the Skip button and the files
11. and DCE type devices have complementary pinouts to allow terminals and modems to be connected directly using a one to one cable as shown in Figure 16 In many applications DCEs are unnecessary and in these cases a cable called a null modem cable or modem eliminator cable is used to directly connect two DTE type devices A typical null modem cable is also shown in Figure 17 RxD RxD TxD L lt typ RTS RTS cts lt ets DTR DTR DSR X Z DSR DCD RI GND Rcd ice eae lie tase INVOVOAISNS DOONAARNO DSO ee ee ee w D NNSS NARN Y N 7 T Q Z 0 Typical DTE to DCE cable Typical DTE to DTE null modem cable Figure 17 Cabling requirements for RS 232 C devices cables using 25 pin connectors shown QSC LP 100 User s Manual 31 The QSC LP 100 is a DTE device which connects to peripheral equipment through a single female D 44 connector or using the adapter cable four male D 9 connectors The standard serial port connections are listed in Figure 18 RS232 Porti Port2 Port3 Porta Sel pa D3 paa D9 p a D9 Das mD 13 3 0 3 6 3 2 3 ew al pe 2 fas 2 pa 2 Figure 18 QSC LP 100 connector pinouts QSC LP 100 User s Manual 32 8 PCI Resource Map Listed below are the PCI resources used by the QSC LP 100 Such information may be of use to customers writing their own device drivers or other custom software A detailed description of the QS
12. authors have taken due care in the preparation of this document and every attempt has been made to ensure its accuracy and completeness In no event will Quatech Inc be liable for damages of any kind incidental or consequential in regard to or arising out of the performance or form of the materials presented in this document or any software programs that might accompany this document Quatech Inc encourages feedback about this document Please send any written comments to the Technical Support department at the address listed on the cover page of this document DOS Windows 95 98 2000 ME Windows NT are trademarks or registered trademarks of Microsoft Corporation OS 2 is a registered trademark of IBM Corporation All other trademarks or registered trademarks are property of their respective owners lli QSC LP 100 User s Manual Declaration of Conformity Manufacturer s Name Manufacturer s Address Application of Council Directive Standards to which Conformity is Declared Type of Equipment Equipment Class Product Name Model Number 1V Quatech Inc 5675 Hudson Industrial Parkway Hudson Ohio 44236 USA 89 336 EEC EN50081 1 CEN55022 EN60555 2 EN60555 3 EN50082 1 IEC 801 2 IEC 801 3 amp IEC 801 4 Information Technology Equipment Commercial Residential amp Light Industrial PCI Quad Serial Communications Card QSC LP 100 QSC LP 100 User s Manual 1 General Informa
13. d levels to be configured The threshold values of full scale for the transmit buffer and 4 scale for the receive buffer are optimal for most applications Note that the FIFO option for each of the QSC LP 100 s four ports is configured independently QSC LP 100 User s Manual 26 4dyanced Settings for Quatech PCI Serial Port COM3 COM3 QSC LP 100 User s Manual 2l 6 Other Operating Systems Device drivers for Windows NT and OS 2 are also available for the QSC LP 100 The board can be used under DOS and other operating systems as well in many circumstances The software described below can be downloaded from the Quatech web site if it did not come with the board 6 1 Windows NT The Windows NT device driver is installed by running the SETUP program Up to 256 serial ports are supported There is a command line based configuration utility which is used for adding PCI bus and ISA bus serial ports Please refer to the documentation included with the device driver for full installation and configuration details 6 2 OS 2 The OS 2 device driver supports up to 32 serial ports in a system Installation is a manual but simple process Please refer to the documentation included with the device driver for full installation and configuration details 6 3 DOS and other operating systems The QSC LP 100 is not a direct drop in replacement for a legacy serial port because its base address and IRQ cannot be fixed at values such as 3F8
14. hex IRQ 4 COM 1 or 2F8 hex IRQ 3 COM2 etc Rather the system BIOS assigns the address and the IRQ in a plug and play fashion at boot time Software which is to use the QSC LP 100 must be able to accommodate any valid assignments of these resources For Windows 95 98 2000 ME Windows NT and OS 2 the Quatech device drivers determine what the resource assignments are and proceed accordingly In other cases however the user must intervene The discussion below will center on DOS but the concepts can be applied to other operating systems as well Many DOS applications support user configuration of the base address and IRQ of a serial port Such applications can generally make use of the QSC LP 100 Older applications as well as some custom software may use hard coded standard legacy serial port addresses These applications will require modifications if they are to use the QSC LP 100 Custom applications for which the customer has source code can be modified to make just a few PCI BIOS function calls to obtain all the necessary configuration information The PCI BIOS specification can be obtained from the PCI Special Interest Group Contact Quatech technical support for more information QSC LP 100 User s Manual 28 6 3 1 QTPCLEXE Quatech s QTPCI utility supplies the information required when modifying the serial port settings of the application This program should be run from real DOS not in a Windows DOS box Figure 14 show
15. if you want files to be copied from an alternate location such as a floppy disk or a network Server 2 The following dialog box will appear Insert the Quatech COM CD shipped with the device Click the OK button The file qserfilt zys on Quatech PCIAPCMCIA Multipart Serial Driver Installation Disk i needed Cancel Type the path where the tile iz located and then click OK Copy files from E al Browse 3 The following dialog box will display the appropriate INF file on the CD in the drive Click the OK button 4 Window will copy the INF file from the CD and display a final dialog indication that the process is complete Click the Finish button QSC LP 100 User s Manual 15 5 3 Windows 98 L After inserting a QSC LP 100 for the first time the Add New Hardware Wizard will appear at start up Click the Next button 2 Select Search for the best driver for your device Click the Next button Add Hew Hardware Wizard 3 On the next dialog select the CD ROM DRIVE check box Insert the Quatech COM CD shipped with the device into the CD ROM drive Click the Next button QSC LP 100 User s Manual 16 Add New Hardware Wizard Windows will search for new drivers in its driver database on Four hard crive and in any of the following selected locations Click Next to start the search T Floppy disk drives M CD ROM drive F Micrsoft Windows Update T Specify a location
16. me controllers System devices E Universal Serial Bus controllers 2 Double click on the hardware class Multi Port Serial Adapters to list hardware devices in the class 3 The QSC LP 100 parent device belongs to this hardware class The full device name for the QSC LP 100 is Quatech QSC LP 100 Four Port RS 232 Serial Adapter QSC LP 100 User s Manual 22 Quatech ESC LP 100 PCI Eight Port RS 232 Serial Adapter Pro J Ed a M Use this device enable kd 4 Open the Properties dialog for the QSC LP 100 device then click the Resources tab to view the Input Output Range and Interrupt Request resource allocations Do not change these settings without specific instructions from a Quatech Technical Support Specialist To exit without saving changes click the cancel button 5 Open the Properties dialog for the QSC LP 100 device then click the Advanced tab to view the clock rate settings QSC LP 100 User s Manual 23 Quatech ESC LP 100 PCI Eight Port RS 232 Serial Adapter Pro E Ea a Data Rate Multiplier Clock Mode Auto 921 600 115 200 X2 230 400 QSC LP 100 User s Manual Description Auto clock mode enables applications to request any baud rate up to 921 600 The hardware drivers will select the correct clock multiplier based on the baud rate requested The X1 clock mode mimics a standard COM port The hardware drivers lock the clock to the standard rate The port will run
17. ock rate multiplier and the UART baud rate divisor For example a baud rate of 230 4 kbps could be achieved by setting the clock rate multiplier to X2 mode or by applying the X2 jumper and setting a software application for 115 2 kbps QSC LP 100 User s Manual 13 5 Windows Configurations 5 1 Windows Millennium 1 After inserting the QSC LP 100 for the first time the Add New Hardware Wizard will begin Select Search for the best driver for your device Check the Removable media and Specify location box Click the Next button Add Hew Hardware Wizard Wirdose wil scarch for mew drivers mite creer database on your tard drive and in any of tae following selected i Removable Medic Floppy COAOM Specify alocaluri p Browse Display alistui al the divas ii a pectic calir 2u wii iari sele i Fei hise yina waril Baols Caros 2 Window will locate the proper INF file and copy the file from the CD Click the Next button 3 The final dialog screen will verify the file copy from the CD Click the Finish button QSC LP 100 User s Manual 14 5 2 Windows 2000 l After inserting a QSC LP 100 for the first time the Add New Hardware Wizard will appear at start up Click the OK button Insert Disk Please ingert the Compact Disc labeled uatech PLLPCMCLA Multport Senal Driver Installation Disk Into your CO AOM drive H and then click OF Pence You can also click OF
18. ovides four RS 232 asynchronous serial communication interfaces for Low Profile IBM compatible personal computer systems using the PCI expansion bus The QSC LP 100 uses Quatech s new Enhanced Serial Adapter design Legacy serial port data rates are limited to a maximum of 115 200 bits per second Quatech Enhanced Serial Adapters can achieve data rates as high as 921 600 bits per second As a PCI device the QSC LP 100 requires no hardware configuration The card is automatically configured by the computer s BIOS or operating system The four serial ports share a single interrupt line and are addressed in a contiguous block of 32 bytes A special interrupt status register is provided to help software to manage the shared interrupt The QSC LP 100 s serial ports are implemented using 16550 Universal Asynchronous Receiver Transmitters UARTs These UARTs contain hardware buffers FIFOs which reduce processing overhead and allow higher data rates to be achieved The QSC LP 100 is supported under several popular operating systems and environments Contact the sales department for details on current software offerings Most device drivers are available for download from the Quatech world wide web site at http www quatech com QSC LP 100 User s Manual 6 2 Hardware Configuration The QSC LP 100 is automatically configured at boot time by the computer s BIOS or operating system There are no required switches or jumpers to set for installation
19. rivers Quatech supplies for various operating systems For cases where no device driver is available such as for operation under DOS Quatech supplies the QTPCI DOS software utility for manually determining the resources used See section 6 3 1 for details QSC LP 100 User s Manual 10 4 2 Enabling the Special Registers The QSC LP 100 contains two unique registers an Interrupt Status Register and an Options Register These registers are enabled when the SPAD jumper J6 is removed factory default They replace the UART Scratchpad Register on accesses to register address 7 The Interrupt Status Register and Options Register are accessed through the scratchpad location of any UART The DLAB bit of the UART Line Control Register bit 7 1s used to select between the two registers The most recent write of a DLAB bit in any UART selects between the two registers as shown in Figure 7 DLAB Bit SPAD Jumper Register selected for address 7 accesses 0 removed _ __Interrupt Status Register Options Register applied Scratchpad Registers Figure 7 DLAB bit selects between special registers 4 3 Interrupt Status Register The read only Interrupt Status Register can be used to quickly identify which serial ports require servicing after an interrupt Reading the Interrupt Status Register will return the interrupt status of the entire QSC LP 100 as shown in Figure 8 The individual bits are cleared as the interrupting ports are
20. s the Basic Mode display for the QSC LP 100 after the Q key has been pressed In this example the QSC LP 100 uses I O base address FF80 hex and IRQ 11 The hardware revision of the QSC LP 100 is also displayed Pressing the N key will show similar information for all non Quatech PCI devices in the system including those devices integrated on the motherboard The QTPCI program is capable only of displaying the PCI configuration It cannot be used to make changes Quatech PCI Configuration Information Display Software Wersiom 1 66 TAS TRUCTIONWS Press keys listed in the senw at the bottom of the screen his program only displays information It cannot make changes uabers preceeded by Bx are hexadecimal PCI BIOS detected version 2 10 atech PCI adapters detected 30 100 Four port AS 2327 adapter Hardware Revision Bi DR il fase addr 1 Oxf fio I O D Quatech PCI adapters H Change to Expert Mode H Other PCI devices a EXIT Figure 14 QTPCI EXE Basic Mode display QSC LP 100 User s Manual 29 Figure 15 shows the Expert Mode display for the QSC LP 100 after the Q key has been pressed The information from the Basic Mode display is presented along with more details such as the Vendor and Device IDs PCI Class Code size of memory and I O regions etc Pressing the N key will show similar information for all non Quatech PCI devices in the system including those devices integrated on the motherboard
21. serviced The interrupt service routine should ensure that the interrupt status register reads zero before exiting T MSB 5s Ont se 0 not used Port 4 1 if interrupt pending Port 3 1 if interrupt pending Port 2 1 if interrupt pending Port 1 1 if interrupt pending Figure 8 Interrupt Status Register QSC LP 100 User s Manual 11 4 4 Options Register The Options Register allows software to identify the QSC LP 100 as a Quatech Enhanced Serial Adapter It also allows software to set the UART clock rate multiplier Figure 9 shows the structure of the Options Register The powerup default of the Options Register is all bits zero Name Description ID bit 1 ID bit O reserved 0 reserved 0 es PRR Gockrate mater biT o RRO Gockrate materi Figure 9 Options Register bit definitions 4 4 1 Enhanced Serial Adapter Identification The ID bits are used to identify the QSC LP 100 as a Quatech Enhanced Serial Adapter Logic operations are performed such that the values read back from these bits will not necessarily be the values that were written to them Bit ID1 will return the logical AND of the values written to ID 1 0 while bit IDO will return their exclusive OR Software can thus identify a Quatech Enhanced Serial Adapter by writing the ID bits with the patterns shown in the write column of Figure 10 then reading the bits and comparing the result with the patterns in the read col
22. tion eee ee ee eee E EEA 7 2 Hardware Configuration 2 1 Factory Default Configuration 8 2 2 Enable Scratchpad Register SPAD J2 8 2 3 Force High Speed UART Clock X2 X4 or X8 G21 9 os sacccsra abacanaudraussbades pe ansoeew ShGa esa aes 9 3 Hardware Installation ii 4 Address Map and Special Registers a 4 1 Base Address and Interrupt Level IRQ 12 4 2 Enabling the Special Registers 13 4 3 Interrupt Status Register 0 0 0 13 4 4 Options Register 0 00 00 00 eee 14 4 4 1 Enhanced Serial Adapter Identification 14 4 4 2 Clock Rate Multiplier 000 0 15 5 Windows Configurations F 5 1 Windows Millennium aaa 16 5 2 Windows 2000 l a aaaea 17 S9 WIMGOWS 99 ccsogpidariope tie base pies nadaa 18 5 4 Windows 95 looa aaaea 19 5 5 Using the New Hardware Found Wizard 19 5 6 Viewing Resources with Device Manager 21 5 6 1 Changing Resource Settings with Device Manager 24 6 Other Operating Systems Sa ct atta ht 30 6 1 Windows NT 00 0 ene 30 CZ OS aee a a a e eae ee 30 6 3 DOS and other operating systems 30 6 3 1 QTPCLEXE aoaaa 31 7 External Connections z 8 PCI Resource Map m 9 Specifications 36 10 Troubleshooting m QSC LP 100 User s Manual 1 General Information The Quatech Inc QSC LP 100 pr
23. tions correct Are the cables securely attached 2 Is the software configured with the correct base address and IRQ information for the QSC LP 100 This is mainly a DOS issue 3 Is the device driver installed 4 If you are trying to communicate with another DTE a null modem cable will be required 5 If possible use a loopback connector to test the port This connector needs to connect the following sets of signals on a D 9 connector TxD and RxD pins 2 and 3 RTS and CTS pins 7 and 8 DCD DTR DSR and RI pins 1 4 6 and 9 QSC LP 100 User s Manual 36 QSC LP 100 User s Manual Revision 1 12 November 2006 P N 940 0180 112 QSC LP 100 User s Manual
24. umn Matching read patterns verify the presence of the Options Register Figure 10 ID bit write read table QSC LP 100 User s Manual 12 4 4 2 Clock Rate Multiplier A standard RS 232 serial port operates at a clock speed of 1 8432 MHz In order to achieve higher data rates Quatech Enhanced Serial Adapters can operate at two times four times or even eight times this standard clock speed This is controlled by the clock rate multiplier bits in the Options Register Software can determine the UART clock frequency by reading the clock rate multiplier bits RR1 and RRO in the Options Register as shown in Figure 11 RR1 and RRO can be set by writing to the Options Register if the X2 X4 and X8 jumpers J3 J5 are all removed If one of these jumpers is applied the RR1 and RRO bits are forced to the appropriate value Reading the Options Register will always return the clock rate multiplier at which the board is operating Clock Rate UART Clock Maximum Data X1 OO O ao de foul t 1 8432 MHz 115 2 kbaud 3 6864 MHz 230 4 kbaud fe 7 3728 MHz 460 8 kbaud 14 7456 MHz 991 6 kband Figure 11 Rate Register bit definition At powerup and reset the Options Register is initialized to 0 The QSC LP 100 will thus powerup in the x1 mode with software control of the clock rate multiplier enabled as long as the X2 X4 and X8 jumpers are not installed Software can control high baud rates through a combination of changing the cl
25. vers will recognize signal transitions with much larger ratios With a 4 signal transition time ratio E A TIA 232 E is limited to a theoretical data rate of 200 kbaud If maximum signal transition time ratio is extended to 10 15 20 or even 25 the maximum data rate achievable using EIA TIA 232 E can be increased past 200 kbaud Note 2 A typical value for capacitance per foot of standard cable is 50 pF ft QSC LP 100 User s Manual 35 10 Troubleshooting Listed here are some common problems and frequent causes of those problems If the information here does not provide a solution contact Quatech technical support Any unauthorized repairs or modifications will void the OSC LP 100 s warranty Computer will not boot up 1 Is the QSC LP 100 properly inserted Remove the card and try again Perhaps try a different expansion slot 2 Ensure that an ISA bus card is not using the same IRQ that the PCI BIOS tries to assign to the QSC LP 100 Most computers have BIOS setup options to reserve IRQs for either ISA or PCI use Try reserving the IRQ for the ISA card The BIOS will automatically choose a different IRQ for the QSC LP 100 An address conflict is unlikely because most PCI based computers will assign I O addresses in such a way that they cannot conflict with ISA bus devices 3 The QSC LP 100 may be defective Contact technical support for instructions Cannot communicate with other equipment 1 Are the cable connec
26. will not be installed This is all right if the latest version of these drivers are currently in the WINDOWSI SYSTEM directory 9 The New Hardware Found dialog will repeat for each of the serial ports on the QSC LP 100 as each port is registered with Windows 95 10 Installation is complete 5 6 Viewing Resources with Device Manager QSC LP 100 User s Manual 18 The following instructions provide step by step instructions on viewing resources used by the QSC LP 100 in Windows using the Device Manager utility Select StartlHelp from within Windows for additional information on this utility l Double click the System icon inside the Control Panel folder This opens up the System Properties box Click the Device Manager tab located along the top of the System Properties box This lists all hardware devices registered inside the Windows registry Additional information is available on any of these devices by click on the device name and then selecting the Properties button Double click the device group Multi function Adapters The QSC LP 100 model name should appear in the list of Multi function adapters Double click the QSC LP 100 model name and a properties box should open for the hardware adapter Click the Resources tab located along the top of the properties box to view the resources Windows has allocated for the QSC LP 100 match the hardware configuration Because PCI is a true plug and pla
27. y bus do not attempt to modify the configuration values listed Click Cancel to exit without making changes QSC LP 100 User s Manual 19 wnaem Properties General Device Manager Hardware Profiles Pertormance E View devices by type C View deces by comm echon H KJ Wouse v MultHunctan 4daobers Justech OSC 200 300 PC Serial Card 4 5 422 485 Parts H BD Network adepters H Oh r devices H gt PCMCIA focket F Ports COM amp LPT Communications Part CoM OF Communications Port COM3 OF Printer Port LPT1 OF Quatech Serial Port COMB QF Quatech Serial Port COMB OF Quatech Serial Port COM OF Quatech Serial Port COMB H w Sound vided and Game controllers H m otha m denice s Figure 12 Windows Device Manager 6 The QSC LP 100 serial ports are also listed under the group Ports COM and LPT Windows 95 does not assign COM1 COM4 to ports addressed at nonstandard locations The QSC LP 100 ports will be enumerated starting with COMS or higher even if lower logical numbers are available 7 Select any of the Quatech Serial Ports listed under the group Port COM and LPT and click the Properties button This action opens a properties dialog for the specific COM port on the QSC LP 100 8 Click the Port Settings tab and then click the Advanced button The QSC LP 100 driver will display a custom Advanced Port Settings control which allows the ports UART compatibility mode and F
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