Soft V.90/K56Flex PCI Single-chip Low-Power Chipsets
Usage: To find other modems with the same chipset.
All drivers, downloads & info on this site are found via the modem.
Each Modem Manufacturers’ page also has external web-links, where available.
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General Information
- Originated by Rockwell on 4 Nov 1998 & developed by Conexant, this has been one of the company’s most successful chipsets. It is essentially a PCI-bus & telephone line interface, containing neither DSP nor controller functions in firmware, both of which are handled by software on the host computer. Whilst this originally limited the modem to Windows, Conexant keep threatening driver support for the Linux platform. If an old Windows driver is updated the modem name may change, and will need to be altered on the General page of Dial-Up Networking Properties.
The RS56L-PCI uses a single-chip just like the HSF MonoPak chipsets. The latter was a co-development of the RS56-PCI twin-chip chipsets. All 3 have identical PCI IDs & should, therefore, have inter-changeable drivers. This is how the PCI-Interface family looks:
- RS56L-PCI - R6794
- HSF MonoPak - R6793
- RS56-PCI - 11235-14
A cellular-interface on the chip allows for cell-phone connections if the hardware is present. See also the RMS56-PCI for Mobile chipsets.
Extra Info
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Country (how to find)
- Via Control Panel applet, or AT+GCI command to select (depends on options placed at install time in Registry)
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Known Problems
- (Windows XP, 2000, Millennium): the phone line may be disconnected if a DVD/CD-ROM drive is configured to PIO mode (the default on some systems) and is in use. Configure to DMA mode (Device Manager, usually IDE ATA/ATAPI Channels, Primary and/or Secondary channel). Extra info: PIO is an old transfer-mode which ties up the CPU whilst moving data bit-by-bit across the computer bus; DMA uses a DMA-controller to rapidly shift blocks of data in parallel with the CPU, and was explicitly designed to solve the congestion problems caused by PIO transfers.
Copyright Statement
Compilation, original writings & design Copyright ©2002 - 2010 Modem-Help, Ltd.
All trademarks respected as the property of their respective owners.
Full Copyright + Disclaimer statement
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Quick Stats
Items available:
- 13,485 modems
- 1,651 chipsets
- 2,196 chips
- 791 modem mfcs
- 121 comp/MB mfcs
- 1,689 comps/MBs/retail
- 144 chipset mfcs
- 21,324 external web links
- 105,791 hardware IDs
- 168,704 download files
† Key
Mfc: the company no longer makes/supplies modems and/or their chipsets, or has been taken over, or otherwise fallen into commercial Tophet.
Modem: it is no longer in production.
Chip, Chipset, Family or Family-Type: it is no longer produced at the Foundry.
In short, the item marked with a † has shuffled off this mortal coil, it has gone to meet it’s maker, to sing with the choir invisible; it is, not to put too fine a point upon it, an ex-modem (-Mfc, -Chip, -Chipset, -Family or -Type).
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These pages are a LAMP-development of the original Modem-Help, UK site (most of the old HTML pages still exist, but havn’t been updated for quite some time). That site, in it’s turn, was a transfer from the first html site on free-pages at Freeserve (sadly, now gone). The current format allows superb search facilities, customisation by Registered members, plus is quick ‘n’ easy to update.
Diligently put together in the UK by Alex Kemp. All efforts have been taken to ensure the veracity of what is written - if you know of any errors or omissions then please let us know.
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