----- Original Message -----
From: "Jim Fleming" <jim.fleming@moblcode.com>
To: <bensexson@earthlink.net>; "M. Warner Losh" <imp@bsdimp.com>
Cc: <port-hpcmips@netbsd.org>
Sent: Wednesday, November 20, 2002 11:55 AM
Subject: Re: z50 Internal Modem Device Name


>
> ----- Original Message -----
> From: "M. Warner Losh" <imp@bsdimp.com>
> To: <bensexson@earthlink.net>
> Cc: <port-hpcmips@netbsd.org>
> Sent: Tuesday, November 19, 2002 10:15 PM
> Subject: Re: z50 Internal Modem Device Name
>
>
> > In message: <OFENLDGAGLHAPKPAANJNCEFECBAA.bensexson@earthlink.net>
> >             "Benjamin David Sexson" <bensexson@earthlink.net> writes:
> > : The modem uses a Rockwell RP336LD Modem Data Pump (I don't really know
> what
> > : this means?).  I am guessing that this sends the data to the processor
> which
> > : then emulates a UART.  So I guess it wouldn't be that easy to port a
> > : linmodem to NetBSD.  Anybody have any idea how to start making a
driver?
> >
> > Read the documenation that's included in the Vr4121 :-)
> >
> > 26.1 General
> >
> > The core of the HSP unit uses an NEC56K chip made by PCTEL. The main
> > functions of this core are as follows:
> >
> > o "CODEC device control and serial parallel conversion of the CODEC
> >   transmit/receive data.
> > o "Control of relay lines, hook lines, and other signal lines in the
> >   data access arrangement (DAA) block.
> >
> > Block diagrams of HSP unit and an example of connection between the
> > VR4121 and external agents are shown below.
> >
> > 26.2 Register Set
> >
> >     The HSP registers are listed below.
> >     The data registers can be accessed as the control registers by
> > specifying the INDEX number and then reading from or writing to.
> >     The HSPINIT register is added for the VR 4121, and other registers
> > are original to the NEC56K.
> >
> > Table 26-1. HSP Registers
> >
> > Address    R/W Register Symbols Name
> > 0x0C000020 R/W HSPINIT          HSP Initialize Register
> > 0x0C000022 R/W HSPDATA(7:0)     HSP Data Register L
> > 0x0C000023 R/W HSPDATA(15:8)    HSP Data Register H
> > 0x0C000024 W HSPINDEX           HSP Index Register
> > 0x0C000028 R HSPID(7:0)         HSP ID Register
> > 0x0C000029 R HSPPCS(7:0)        HSP I/O Address Program Confirmation
> Register
> > 0x0C000029 W HSPPCTEL(7:0)      HSP Signature Checking Port
> >
> > These registers are described in detail below.
> >
> > etc
> >
> > D[3] AFESEL CODEC interface mode switch
> >     1 : ST7546, STLC7546(SGS), T7525(AT)
> >     0 : TLC320C44, TLC320AC01/02(TI)
> >
> > I don't know if the Rockwell modem data pump is compatible with any of
> > the devices listed.
> >
> > I'd try to get the Vr4111 docs since it is almost identical to the
> > Vr4121, but the english translation is a little higher quality.  The
> > Vr4131 docs don't have anything on the HSP, since I think that was
> > removed from the Vr4131.  I got the above from
> > http://www.necelam.com/microprocessors/uPD30121-168.cfm
> > and did a small cut and paste.  There seem to be no special Vr4122
> > docs.
> >
> > I don't have a z50, so I can't tell for sure if the IBM uses the HSP
> > inside the Vr4121 or not.
> >
> > Warner
> >
> >
>
>
>