Re: [linuxdc-dev]Modem

[Karl T. K. <ka...@pr...>]

On Sun, 7 Jul 2002, Adrian McMenamin wrote:

> He has asked me to supply him with what ever technical details I can about the 
> modem - and while I can garner this stuff myself I thought there might be 
> people here who have it all to hand.

A quick search on google reveals the following:

http://www.goldenshop.com.hk/AI-trad/Dreamcast_htm/d_56kmod.htm 

The are two versions. I think for some reason the 33.6kbps was bundled 
in Europe and the 56k in the US (or vice versa).

RP56LD, R6785-19
RP336LD, R6785-17

A datasheet for the RP56LD family is available at:
http://216.239.39.100/search?q=cache:efEiBK_L37UC:www.unitronic.de/Hersteller/conexant/Modem/Data%2520Sheet%27s/100665c-RP56LD.pdf+RP56LD&hl=en&ie=UTF-8

Its registers are available somewhere in
(phys) 0x14000000-0x17FFFFFF.

Given the proper hw manual for the rockwell chipset, we should be able to
probe that region and detect the modem's IO base, I figure. 


Karl T