Soft V.90/K56Flex PCI/Mini-PCI/CardBus 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.
- Originated by Rockwell on 10 Dec 1998 & developed by Conexant, this type of chipset was one of the company’s most successful designs. It contains a Bus- & phoneline-interface only, all DSP & controller functions being handled by software on the host computer. Originally only Windows drivers were provided, but more recently Conexant has threatened 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.
This family of chipsets was pin-compatible with the RMH56LD HCF chipsets, meaning that one set of work by the OEM could produce two modems. This was the cheaper of the 2 options. See also the single-chip low-power RS56L-PCI chipsets.
There are 3 buses supported, depending on the chip in use:
Speakerphone options are available for each bus using a 20437 chip, and the PCI & CardBus chips have a Cellular interface on-chip also.
- PCI - R6818-11
- PCI or Mini-PCI - R6818-12
- CardBus - R6818-21
- (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.
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All trademarks respected as the property of their respective owners.
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- 14,260 modems
- 1,747 chipsets
- 2,245 chips
- 803 modem mfcs
- 121 comp/MB mfcs
- 1,706 comps/MBs/retail
- 144 chipset mfcs
- 22,803 external web links
- 141,347 hardware IDs
- 221,963 download files
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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