This document helps you select CPUs, and it explains the tradeoffs associated with different processors. It explains the use of the GM56PCI-SM Data/Fax/Voice modem with various sound card configurations. It also aids you in troubleshooting and testing the GM56PCI-SM equipped system.
(DRAM). Eliminating most CPU accesses to main memory considerably improves overall system performance. The GM56PCI-SM modem works best when a minimum of 256K L2 Cache is installed on the computer system motherboard to minimize processor loading. Intel's Celeron (266MHz PII) systems do not have L2 cache.
DOS application support. You can access the User's Guide through the GM56PCI- SM modem Control Panel application. Also, you must ensure that one of COM Port 2, 3, or 4 is available for the GM56PCI-SM, as follows: 1. Open the Windows Control Panel.
4. Expand the Ports (COM and LPT) branch to see which COM ports are already installed. To install the GM56PCI-SM so that it is accessible to older application software and DOS programs, the modem needs to be installed on one of COM port 2, 3, or 4. If none of these ports are available, you must disable one of them in the BIOS.
Advanced tab in the GM56PCI-SM Control Panel application. Make sure the DOS box check box is checked. If not, click it to check it, exit the GM56PCI-SM Control Panel application and restart the computer. You must restart the computer to complete DOS box enabling.
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COM port, many software applications do not work if the modem is on a COM port number higher than 4. If the GM56PCI-SM installs on COM5 (or higher), you can force it to a lower COM port via the GM56PCI-SM Control Panel applet.
(Start->Settings->Control Panel, then double-click the GM56PCI-SM Modem icon). Make sure the DOS box check box is checked. If not, click it to check it, exit the GM56PCI-SM Control Panel application and restart the computer. You must restart the computer to complete DOS box enabling.
*Some games require that the modem refrain from performing error correction and data compression. In these cases, use the initialization string AT&F\N0. For a full list of AT commands supported by the GM56PCI-SM please refer to the on-line User's Guide.
The modem installs at COM 5 (or higher) Some communications applications do not communicate with a COM port higher than COM4. If the GM56PCI-SM installs on COM5 or higher, force the modem to a lower COM port as follows. 1. Open the GM56PCI-SM Control Panel application.
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6. Select the Resources tab. Make a note of the IRQ number listed. 7. For DOS support to operate correctly, the GM56PCI-SM modem cannot occupy the standard for the COM port number. 8. Uncheck the Use Automatic Resources check box.
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COM port. 2. Reset modem parameters to default options by entering AT&F; then re-enter custom options. 3. GM56PCI-SM builds after Build 50 require setting the S46 register to 23 before AT&T1 will perform the Local Analog Loopback (LAL) hardware test.
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The modem cannot connect; the Error Control option is selected The modem may be connecting at a rate higher than appropriate for the line conditions. 1. Use the AT%B command to limit the GM56PCI-SM maximum connection rate. (For a list of AT commands, refer to the on-line User's Guide.) 2.
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1. Open the Control Panel. 2. Double-click the Modem icon. 3. Select the Motorola GM56PCI-SM modem. 4. Click on Properties. 5. Select Connection. 6. Click on Advanced. 7. In the Extra Settings box, add commands as needed. You do not need to enter the AT prefix, but it will not hurt if you do.
• On-line user's guide accessible through the Control Panel applet, which includes a list of supported AT commands. Appendix B - Supported AT Commands Table of Supported AT Commands AT Cmd Function Mode Value Setting Answer Dial Async Echo Disable Enable Go on hook Go On Hook...
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AT Cmd Function Mode Value Setting On-to-Off, Reset to Default Configuration &F Reset to Default Configuration &F=n Reset to Specific Country See table A for values of N &G Guard Tone 550 Hz 1800 Hz &I Dial TX Level 0 -15 TX levels 0 through -15 (default -9) &P Pulse Cycle...
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AT Cmd Function Mode Value Setting Data Compression Disable Enable Disconnect Buffer Delay Disabled 1 - 255 Seconds Min Modulation Rate Minimum Rate (300 bps) 300 bps 1200 bps 2400 bps 4800 bps 600 bps 9600 bps 7200 bps 12000 bps 14400 bps 16800 bps 19200 bps...
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AT Cmd Function Mode Value Setting Connect Message Format Display DTE Rate Display DTE Rate with EC/DC Info Display DCE Rate Display DCE Rate with EC/DC Info Display DCE Rate with EC/DC and Modulation Info Baud Rate When Answer 2400 only 2400 or 3000 2400, 3000, or 3200 2400, 3000, 3200, or 3429...
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AT Cmd Function Mode Value Setting Enable DCE-controlled V.8 orig neg, use +A8x indications V.8 Answer Negotiation Disable Enable DCE-controlled V.8 ans neg Enable DCE-controlled V.8 ans neg, issue +A8x indications V.8 CI Signal Call Function 00h - FFh Default is 00h V.8bis Control Disabled Enabled - DCE controlled...
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AT Cmd Function Mode Value Setting LAPM or MNP (V42 Detection Phase) MNP Only Initiate Synchronous Access Mode when connected Originate Fallback EC Mode EC Optional, fallback to Normal Mode EC Optional, fallback to Direct Mode EC Required (LAPM or MNP) EC Required (LAPM Only) EC Required (MNP Only) Answer Fallback EC Mode...
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AT Cmd Function Mode Value Setting V.17 at 14400 bps with long train time V.17 at 14400 bps with short train time +FRM Receive Mode Same values as +FRH +FTH Transmit HDLC Mode Same values as +FRH +FTM Transmit Mode Same values as +FRH +FTS Pause Transmission...
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AT Cmd Function Mode Value Setting V23C V.23 V.32 V32B V.32bis V.34 VPCM B103 Bell 103 Automode Disabled Enabled Min Rate (Tx) Minimum defined by Carrier x = rate (default is 300) Max Rate (Tx) Maximum defined by Carrier x = rate (default is 33600) Min Rx Rate Minimum defined by Carrier x = rate (default is 300)
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AT Cmd Function Mode Value Setting +VTX Enter Voice Transmit Mode +VTS DTMF and Tone Generation Multi-Parameter Parameters described in table E Auto Answer 0 - 255 Default = 0 Ring Count Escape Character 0 - 255 Default = 43 (+) Carriage Return 0 - 127 Default = 13 (CR)
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AT Cmd Function Mode Value Setting bit 0: 1 = infidelity training on bit 1: 0 = timing without limiter bit 1: 1 = timing with limiter bit 2: 0 = mu-law companding bit 2: 1 = A-law companding Default = 2 Status, Bitmapped See Appendix B Status, Bitmapped...
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Table C: Disconnect Codes Code Reason Code Reason None EC - Remote Requested DTR Drop EC - No Valid Packet Received ATH Received EC - Establishment Error Remote Disconnect EC - Acceptor Time Out Manager Request EC - Negotiation Failure Major Strap Change EC - Protocol Violation Restoral - Manager...
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Table D: Bit Positions of Supported Events Event Caller ID Distinctive Ring RING DTMF Detection Receive Buffer Overrun Fax Calling (1100 Hz.) Data Calling (1300 Hz.) Presumed Hang-Up (SILENCE) Time-out Presumed End-of-Message (QUIET) Time-out RINGBACK BUSY DIALTONE Playback Buffer Underrun Fax or Data Answering Modem detected Voice Detected Table E: Parameter Types for AT+VTS...
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Appendix B - Status S-Registers __________________________________________________________________________ Value Command Description Local character echo off Local character echo on Response messages on Response messages off Response messages as digit codes Response messages as words &P Make/Break ratio 40/60 &P1 Make/Break ratio 33.5/66.5 &P2 Make/Break ratio 38.5/61.5 ______________________________________________________________________________...
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Speaker volume high Speaker off Speaker on until carrier detect Speaker on until carrier detect Speaker off when modem is dialing CONNECT message only, blind dials, no busy detect CONNECT/rate code, blind dials, no busy detect CONNECT/rate code, waits for dial tone, no busy detect CONNECT/rate code, blind dials, reports BUSY CONNECT/rate code, waits for dial tone, reports BUSY ______________________________________________________________________________...
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Non-destructive and expedited Non-destructive and non-expedited ______________________________________________________________________________ - Disconnect Buffer Delay_____________________________________________________ Value Command Description Buffer disabled 1-255 %D(n=1-255) Disconnect buffer delay value (seconds) ______________________________________________________________________________ - Link Speed Status________________________________________________ Value Command Description 000001 300 bps 000010 600 bps 000011 1200 bps 000100 2400 bps 000111...
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0101 MNP level 5 active - MNP with data compression 0110 LAPM active 0111 LAPM with data compression active 1000 MNP level 1 active _____________________________________________________________________________ - Serial Port Speed___________________________________________________________ Value Command Description 00001 300 bps 00010 600 bps 00011 1200 bps 00100 2400 bps 00101...
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Appendix D - Connect Message Examples The following table shows a few examples of how the long-form connect message will look, based upon the settings of the /V (connect message) and X (call progress) strap settings. Example Long-Form Connect Messages 38400 DTE, 28800 DCE Reliable 19200 DTE, 9600 DCE Normal CONNECT...
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Appendix E - Homologation Testing Command Homologation Automated Test Options This command is a special test hook that causes the modem to go off-hook and generate a continuous signal. In order to enable this command you must first type the command ATS46=0. The signal that is specified by the AT*HO options is sent over the modem line interface as long as AT*HO is set to a non-0 option.
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Parameter 1 Parameter 2 Parameter 3 Parameter 4 (Tx Level) Option Description Option Description Option Description Option Description 9600 bps V.17 9 to 20 -9 to -20 dB 7200 bps 9600 bps 12000 bps 14400 bps V.32bis 9 to 20 -9 to -20 dB 4800 bps 7200 bps...
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